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ASUS ROG Harpe II Ace vs Razer Viper V4 Pro

A

Product A: ASUS

ROG Harpe II Ace

96 of 154 known

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B

Product B: Razer

Viper V4 Pro

88 of 154 known

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Every value links to where we found it.

Only differences

AASUS ROG Harpe II Ace

BRazer Viper V4 Pro

General

5 of 9 differ

Series

Harpe2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Product page names the Harpe Ace Aim Lab Edition as the previous generation of this ROG Harpe line.

Razer Viper1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Product family: Razer Viper

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

90MP0490-BMAA00, 90MP0490-BMUA00, 90MP0490-BMUA106Retailer pageeshop.asus.com/us/90mp0490-bmaa00-rog-harpe-ii-ace.htmlRead 14 October 2026ASUS eShop US: part number 90MP0490-BMAA00, product name P723 ROG HARPE II ACE/BLK. The ROG product page also lists SKUs 90MP0490-BMAA10, BMAA20 and BMUC0S that are not stored because their colours are not stated.7Retailer pagedirectcomputers.co.uk/products/asus-rog-harpe-ii-ace-gaming-mouse-wireless-bluetooth-usb-48g-lightweight-42000-dpi-8k-polling-5-programmable-buttons-blackRead 14 October 2026Retailer MPN 90MP0490-BMUA00, product colour black.

RZ01-05630100-R3U1, RZ01-05630200-R3U1, RZ01-05630300-R3U1, RZ01-05630100-R3G1, RZ01-05630200-R3G1, RZ01-05630300-R3M11Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026US store SKUs end in R3 U1. EU store (eu-en, de-de) SKUs end in R3 G1, the Esports Green Edition in R3 M1

GTIN / EAN

4711387986639, 47113879866777Retailer pagedirectcomputers.co.uk/products/asus-rog-harpe-ii-ace-gaming-mouse-wireless-bluetooth-usb-48g-lightweight-42000-dpi-8k-polling-5-programmable-buttons-blackRead 14 October 2026Retailer barcode 4711387986639 for 90MP0490-BMUA00. Scan UK lists GTIN 4711387986677 for the white 90MP0490-BMUA10, and Box and Sumillion list the same EAN.8Retailer pagescan.co.uk/products/asus-rog-harpe-ii-ace-mouse-white-rog-aimpoint-sensor-rog-optical-micro-switches-42000dpi-24ghz-bt-uRead 14 October 2026Scan UK lists model number 90MP0490-BMUA10 with GTIN 4711387986677 for the white mouse.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

24 March 20262Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026

Status

Available2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026ASUS Store lists the mouse at 125.99 USD, reduced from 169.99 USD, so it is on sale.

Available1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Razer Viper V3 Pro2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Razer's launch release says the Viper V4 Pro builds on the Viper V3 Pro and is about 9% lighter than it.13Reviewprosettings.net/reviews/razer-viper-v4-proRead 8 October 2026ProSettings reviews the Viper V4 Pro as the successor to the Viper V3 Pro.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$169.992Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Product page shows the ASUS Store price as 125.99 USD reduced from 169.99 USD. 9to5Toys reports a launch price of about 170 USD. The 169.99 USD list price is stored.5Press article9to5toys.com/2026/06/18/asus-rog-harpe-ii-ace-ultralight-wireless-gaming-mouse-all-time-lowRead 14 October 2026Article of 2026-06-18: the mouse launched late last year with a 170 USD price tag.

From $159.991Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20262Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 20268Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630200-R3U1Read 30 September 20269Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630300-R3U1Read 30 September 202610Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3G1Read 30 September 202611Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630200-R3G1Read 30 September 202612Maker product pagerazer.com/eu-en/gaming-mice/razer-viper-v4-pro/RZ01-05630300-R3M1Read 30 September 202616Press articlephandroid.com/2026/03/24/razer-announces-the-viper-v4-pro-its-latest-gaming-mouseRead 8 October 202617Reviewcgmagonline.com/review/hardware/razer-viper-v4-pro-gaming-mouseRead 8 October 202618Reviewtweaktown.com/reviews/11398/razer-viper-v4-pro-wireless-gaming-mouse-built-for-competition/index.htmlRead 8 October 2026

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US, EU1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

ColoursiThe maker's own colour names

Black, Moonlight White, Lava Red1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Color: Black/White. The ASUS eShop names the white colour Moonlight White. A Lava Red colour was announced by ASUS on 2026-03-03.14Press articleguru3d.com/story/asus-announces-the-launch-of-the-rog-harpe-ii-ace-lava-redRead 14 October 2026Guru3D article of 2026-03-03 on the ASUS announcement: the mouse is offered in Black, White and Lava Red, and Lava Red is a new colour variant.

Black, White, Esports Green Edition1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Segment

Gaming2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page title and text: esports gaming mouse, part of the ROG Ace esports line.

Gaming1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Mouse type

Standard2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Standard two-button mouse with a scroll wheel and no trackball.

Standard4Measurementrtings.com/mouse/reviews/razer/viper-v4-proRead 30 September 2026Type: Standard

Shape

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Body shapeiDescribes shell symmetry, not the intended hand. Symmetrical with side buttons on one side differs from an asymmetric right-handed body. Ambidextrous means a symmetrical body with side buttons on both sides.

Symmetrical body1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Shape: Right-handed Symmetrical. The page URL files the mouse under ambidextrous mice. The side buttons are on the left only, so the body is symmetrical and not ambidextrous.

Symmetrical body1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Maker FAQ: right-handed symmetrical shape. Stored enum describes body symmetry, and left-only side buttons do not make the body asymmetrical.

Maker size classiThe maker’s marketed size label. Do not infer a size class from dimensions or reviewer hand-fit recommendations.

Not available

Not available

Recommended gripsiGrip styles explicitly recommended by the maker. A reviewer finding a grip usable does not add a maker recommendation.

Claw, Fingertip2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: recommended for claw and fingertip grip.

Claw, Fingertip1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: optimized for Claw and Fingertip users

Recommended hand sizeiMaker recommendation, measured from wrist to middle fingertip for hand length. Source notes specify whether limits are inclusive or exclusive.

Not available

Not available

Hump positioniPosition of the shell’s highest point along its length, from a maker drawing or exact-model review.

Not available

Centre13Reviewprosettings.net/reviews/razer-viper-v4-proRead 8 October 2026Exact Viper V4 Pro review describes a central, gradual hump.

Thumb rest

No15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry: Thumb rest No.

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Exact-model complete body/control drawing shows no separate thumb, ring or pinky support shelf.

Ring or pinky finger rest

No15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry: Ring finger rest No.

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Exact-model complete body/control drawing shows no separate thumb, ring or pinky support shelf.

Upper shelliThe primary hand-contact shell. An open or perforated bottom alone does not make the upper shell perforated.

Solid10Reviewigorslab.de/en/asus-rog-harpe-ii-ace-review-ultralight-esports-mouse-with-42k-sensor-and-speednova-8k-wireless-technology-in-progress/2Read 14 October 2026igor'sLAB: the housing remains fully closed and does not use perforated structures.

Solid5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model body drawing shows a closed upper hand-contact shell. An open underside does not change this classification.

Swappable parts

Not available

Not available

Adjustable weight

Not available

Not available

Maximum added weightiTotal removable weight supplied with the mouse, excluding the mouse’s normal weight.

Not available

Not available

Vertical angle

Not available

Not available

Trackball diameter

Not available

Not available

Trackball position

Not available

Not available

Dimensions and weight

4 of 5 differ

Mouse body dimensionsiLength from front to rear, width at the widest body point, and maximum height. Cable and receiver are excluded. Approximate maker figures are qualified in source notes. Logitech pages often label the front-to-rear length Height and the body height Depth, so map the figures by size.

Length126.1Maximum width63.9Maximum height39.7mm(5 × 2.5 × 1.6 in)1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table: 126.1 (L) x 63.9 (W) x 39.7 (H) mm.15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry gives 126.1 x 63.9 x 39.7 mm, the same as the maker. The entry places the hump at Center, while igor'sLAB and Profesional Review place it toward the rear, so hump position is left out.

Length127.1Maximum width63.9Maximum height39.9mm(5 × 2.5 × 1.6 in)6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: 127.1 × 63.9 × 39.9 mm.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 127.1×63.9×39.9 mm.

Grip widthiBody width where the thumb and opposite grip finger sit. This differs from maximum body width.

Not available

Not available

Mouse weight (claimed)iWireless mice include the battery. When the maker does not say whether a removable battery is in the weight, the published weight is stored and the source note says so. Wired mice exclude the cable. Source notes identify installed skates, colour, approximation, tolerance or a published bound.

48g(1.7 oz)1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table: approx. 48 g, listed as 48 g without dongle. Weight without cable. Same weight for every colour.

49g(1.7 oz)2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release approximate 49 g Black, 50 g White. Cable/dongle excluded in official technical spec record.

Box dimensions

Width158Height76Depth109mm(6.2 × 3 × 4.3 in)7Retailer pagedirectcomputers.co.uk/products/asus-rog-harpe-ii-ace-gaming-mouse-wireless-bluetooth-usb-48g-lightweight-42000-dpi-8k-polling-5-programmable-buttons-blackRead 14 October 2026Retailer: package width 158 mm, depth 109 mm, height 76 mm. Only this source found.

Not available

Packed weightiMouse, packaging and included accessories. Shipping-service weight is not evidence of packed weight.

370g(13.1 oz)7Retailer pagedirectcomputers.co.uk/products/asus-rog-harpe-ii-ace-gaming-mouse-wireless-bluetooth-usb-48g-lightweight-42000-dpi-8k-polling-5-programmable-buttons-blackRead 14 October 2026Retailer: package weight 370 g. Only this source found.

Not available

Sensor

12 of 20 differ

Marketed sensor nameiMaker’s sensor branding, or reviewer identification when the maker does not publish one. The physical part number is recorded separately.

ROG AimPoint Pro1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Sensor: ROG AimPoint Pro.

Focus Pro 50K Optical Sensor Gen-31Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Focus Pro 50K Optical Sensor Gen-3.

Published sensor brandiSensor brand or trademark named by the source, which may be the mouse maker’s proprietary branding. Physical silicon manufacturer and part number are separate facts.

ROG1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026ASUS ROG's own sensor name. The physical part number is not published.

Razer1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Published Focus Pro 50 K Optical Sensor Gen-3 proprietary branding. Physical sensor OEM is not asserted.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Focus Pro 50K Optical Sensor Gen-3.

Physical sensor part numberiExact physical sensor family or part identified by the maker or an exact-model reviewer. Do not infer it from DPI, speed or a sibling mouse.

Not available

Not available

Sensor type

Optical9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH test table: optical sensing with an IR LED, ROG AimPoint Pro.

Optical2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: Focus Pro 50 K Optical Sensor Gen 3.

Maximum configurable DPIiMaximum selectable DPI with the documented firmware. Later firmware increases are noted in sources. The sensor chip’s theoretical maximum is not the mouse’s maximum.

42,000DPI1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Resolution: 42000 DPI.

50,000DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 50000 DPI.

Minimum configurable DPIiLowest selectable sensitivity on this mouse. Factory presets do not establish its minimum.

100DPI11Reviewpokde.net/review/asus-rog-harpe-ii-ace-reviewRead 14 October 2026Spec list in the review: resolution 100 to 42,000 DPI. The ASUS pages state only the maximum.

100DPI5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Performance UI screenshot on printed p 19 shows minimum 100 and maximum 50000 DPI.

DPI adjustment stepiSmallest documented configuration increment, not the spacing between factory presets.

50DPI11Reviewpokde.net/review/asus-rog-harpe-ii-ace-reviewRead 14 October 2026Spec list in the review: 4-stage DPI, 50 DPI increments. Profesional Review gives the same four stages in 50 DPI steps.

1DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20261-DPI step adjustments in Synapse

Maximum DPI stagesiMaximum number of selectable sensitivity presets saved at once, not the number of distinct supported DPI values.

43Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ: the DPI button switches between four DPI settings.11Reviewpokde.net/review/asus-rog-harpe-ii-ace-reviewRead 14 October 2026Spec list in the review: 4-stage DPI.

55Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 19: create up to five sensitivity stages.

Default DPI presetsiFactory preset sensitivity values for the exact model and firmware. Source notes distinguish different factory profiles.

400, 800, 1,600, 3,200DPI3Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ hotkey list: the DPI button cycles through four settings 400 / 800 / 1600 (default) / 3200 DPI.

400, 800, 1,600, 3,200, 6,400DPI1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: factory DPI settings 400, 800, 1600 (default), 3200 and 64005Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 7 DPI and indicator chart: factory 400/800/1600/3200/6400 DPI shown by LED colour.

Separate X and Y DPI

Not available

Not available

Tracking speed (claimed)iMaker or published product specification, in inches per second. If the source says more than a value, that numeric threshold is stored and qualified in the source note. Do not read it as an exact ceiling.

750IPS1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Max Speed: 750 IPS.

930IPS1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 930 IPS.

Tracking acceleration (claimed)iMaximum tracking acceleration in multiples of gravitational acceleration, not mouse weight. A source saying more than a value is retained as a qualified threshold in the source note.

50G1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Max Acceleration: 50G.

90G1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 90G.

Lift-off distance settingsiOnly documented selectable lift-off values, or one documented fixed value. A minimum, approximate measured result or unquantified range does not establish a complete option list.

Not available

Not available

Separate lift and landing distance

Not available

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Asymmetric cut-off with up to 26 levels

Surface calibrationiSensor calibration for a tracking surface. Adjustable lift-off distance or copying sensitivity from another mouse alone does not establish this feature.

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: Gear Link offers manual and mouse-pad based surface calibration.

Yes14Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 8 October 2026Smart Tracking automatically calibrates lift-off distance across surfaces. Rotation Tool is separate and is not treated as angle snapping. Frame Sync is not copied into the Motion Sync field.

Motion SynciWhether sensor motion synchronization is supported. Polling-rate restrictions and default state belong in source notes.

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: Gear Link offers Motion Sync, but it is not available at 8,000 Hz.

Not available

Angle snapping

Not available

Not available

Ripple control

Not available

Not available

Tracks on glass

Yes2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: Track-on-Glass technology.

Not available

Sensor position

Centred15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry: Centered (51%).

Not available

Performance

4 of 8 differ

Documented polling rates by connectioniOne row per documented usable rate and connection. Receiver and firmware requirements are noted. Maximum-only claims do not imply all intermediate settings or the same ceiling over USB.

AASUS ROG Harpe II Ace

Data connection	Polling rate (Hz)	Receiver requirement
USB (wired)	8,000	Not available
2.4 GHz	125	Included wireless receiver
2.4 GHz	250	Included wireless receiver
2.4 GHz	500	Included wireless receiver
2.4 GHz	1,000	Included wireless receiver
2.4 GHz	2,000	Included wireless receiver
2.4 GHz	4,000	Included wireless receiver
2.4 GHz	8,000	Included wireless receiver
Bluetooth	125	Not available
Bluetooth	250	Not available

Source1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table: USB report rate 8000 Hz and RF 2.4G report rate 8000 Hz. Only the 8000 Hz wired maximum is stored for USB. The 2.4 GHz rates are listed under the support FAQ source.3Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ: polling rate options 125 / 250 / 500 / 1000 (default) / 2000 / 4000 / 8000 Hz, changed by holding the pairing button and the rear side button. The FAQ does not split the options by connection. The 2.4 GHz rows are stored from this list and the spec table.9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: according to the manual only 125 and 250 Hz are possible over Bluetooth, and 500 Hz and above do not run over Bluetooth. The 8000 Hz rate also works wirelessly over the included receiver. I could not open the ASUS manual to check the sentence.

BRazer Viper V4 Pro

Data connection	Polling rate (Hz)	Receiver requirement
2.4 GHz	125	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	500	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	1,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	2,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	4,000	Included HyperSpeed Wireless Gen-2 dongle
2.4 GHz	8,000	Included HyperSpeed Wireless Gen-2 dongle
USB (wired)	8,000	Not available

Source1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Tech specs: up to 8000 Hz in both wireless and wired modes. The dongle LED legend lists 8000, 4000, 2000, 1000, 500 and 125 Hz5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 9 and 19, Performance UI screenshot: radio polling options 125/500/1000/2000/4000/8000. Wired maximum 8000 independently stated in maker Specs. Lower wired choices not inferred.

Max polling rate

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (wired)

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (2.4 GHz)

8,000Hz=CalculatedFrom Documented polling rates by connection

8,000Hz=CalculatedFrom Documented polling rates by connection

Polling rate (Bluetooth)

250Hz=CalculatedFrom Documented polling rates by connection

Not available

Claimed click latencyiAbsolute click-latency claim from the maker. A relative improvement is not absolute latency. Source notes give polling mode and whether the number is an average, bound or best case.

Not available

0.204ms2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release averages as low as 0.204 ms clicks, true 8000 Hz in wired/wireless. This is a best-case maker average, not an unconditional measurement.

Adjustable debounce

Not available

Not available

Minimum debounceiLowest documented debounce setting or fixed main-switch debounce delay. Click response time or total click latency is not the same quantity.

Not available

0ms2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: optical Gen 4 main switches operate with zero debounce delay.

Measured

1 of 7 differ

Latency per connection (measured)iReviewer measurements for an identified connection, polling rate, firmware and settings. Click and sensor latency use different test methods and are not interchangeable.

Not available

Not available

DPI deviation (measured)iReviewer measurement of deviation from a specified DPI value. Test DPI, travel speed, distance and method belong in source notes.

Not available

Not available

Lift-off distance (measured)iReviewer-measured lift-off height at the lowest setting, on the specified surface. Do not store the maker’s selectable LOD here.

Not available

Not available

Main click force (measured)iReviewer-measured main-button actuation force in gram-force. Not the mouse weight and not an electrical latency measure.

Not available

Not available

Weight (measured)iReviewer scale measurement. Include battery for wireless mice and exclude cable for wired mice. Source notes identify colour and installed skates.

47g(1.7 oz)9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH, 2026-06-17: measured 47 g against the factory figure of 48 g. The review does not state whether the dongle or the cable was included. The mouse alone is assumed.

48.9g(1.7 oz)4Measurementrtings.com/mouse/reviews/razer/viper-v4-proRead 30 September 2026Default weight 48.9 g, Black unit, methodology v 1.5.2

Battery life (measured)iReviewer-measured runtime from a stated test, not a claim, forecast or extrapolation. Polling, lighting and other power settings must be identified.

Not available

Not available

Hand size fitiExact-model reviewer fit assessment. Source notes define the hand-length bands and tested grip. Do not translate general praise into every size fitting.

Not available

Not available

Switches

6 of 11 differ

Main switch typeiActuation technology for the left and right main buttons. Hybrid means optical-mechanical. Inductive analog switches detect travel by induction.

Optical1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table L/R Switch Type: ROG 100M Optical Micro Switch.

Optical1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Published main-switch brandiBrand named for the main switches. Proprietary Razer, Pulsar, Glorious or Logitech branding does not identify the physical contract manufacturer.

ROG1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026The switch is branded ROG. The physical switch maker is not named.

Razer1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Main switch model

ROG 100M Optical Micro Switch1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table L/R Switch Type: ROG 100M Optical Micro Switch.

Optical Mouse Switches Gen-41Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Main switch rated lifeiManufacturer or component rating for the main left/right switches, in millions of actuations. This is not a whole-mouse durability measurement.

100million1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Product page: ROG optical micro switches with a 100-million click lifespan.

100million1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026Switch lifecycle: 100-million clicks7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer Optical Mouse Switch Gen 4, 100 million.

Hot-swap main switchesiMain switches can be changed without soldering. Opening the case or using a switch pack can still be required.

No3Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ Q4: the optical micro switches are not hot-swappable.

Not available

Adjustable click actuationiThe point where a main click registers can be configured. Debounce adjustment changes timing, not actuation travel.

Not available

Not available

Separate main buttons

Not available

Yes5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2 body drawing shows separate left/right button plates.

Side switch model

Not available

Not available

Middle click switch

Not available

Not available

Scroll encoder type

Mechanical15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry: TTC Gold, Mechanical, 24 steps.

Optical2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Launch release: Optical Scroll Wheel.

Scroll encoder

TTC Gold15Spec databaseeloshapes.com/mouse/compareRead 14 October 2026Exact-model entry: TTC Gold.

Not available

Buttons and scroll wheel

7 of 13 differ

Physical button inputsiIncludes left/right, wheel click, each wheel-tilt direction, DPI/report-rate/profile buttons and a wheel-mode pushbutton. Excludes scroll rotation, power sliders and connection sliders. A connection pushbutton, such as Logitech Easy-Switch, counts even when the maker's own count leaves it out. A button that only switches power does not. Counts each physical input once.

Not available

63Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Button quantity 6. PC Gamer lists 5 buttons, likely leaving out the bottom DPI button5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: separate main plates, two left side buttons, central wheel click and bottom Power/DPI button make 6 inputs.

Programmable buttonsiNumber of physical button inputs that can be remapped. Excludes scroll-up/down actions, alternate software layers and non-programmable mode controls.

59Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: main buttons, side buttons and scroll wheel can be assigned. The pairing button and the profile switch on the underside cannot be remapped. That makes five remappable inputs: left, right, wheel click and two side buttons.

61Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 6 programmable buttons.

Side buttonsiButtons on the thumb-facing side walls, including a side DPI-shift button. Top buttons beside the main click plate and bottom setting buttons are excluded.

29Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: besides the main buttons and wheel there are only two side buttons.

25Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2, buttons 4 and 5 in body layout.

Side buttons on

Left13Reviewnoticias3d.com/articulo/3994/asus-rog-harpe-ii-ace-review-raton-tope-gama-competicion.htmlRead 14 October 2026Review page 1: forward and back buttons on the left side of the mouse. The ASUS gallery photos show the side buttons on the left wall only.

Left5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 2 body layout shows two buttons on the left.

DPI buttoniA physical pushbutton that changes sensitivity. A button shared with power or report rate still counts. Software-only switching does not.

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: DPI switching works in four steps with a button on the underside.

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: bottom Power/DPI button.

DPI button position

Bottom9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: DPI switching has four steps with a button on the underside.

Bottom1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026FAQ: the button at the bottom toggles power and DPI by default and is programmable5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, complete body drawing: the Power/DPI button is on the bottom.

Profile buttoniA dedicated physical profile-switch button. A remappable input that could be assigned this action does not prove a dedicated control.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Dedicated DPI-shift buttoniDedicated physical control for temporarily switching sensitivity while held. A software-remappable input is not automatically a dedicated sniper control.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Dedicated gesture buttoniA dedicated physical gesture control. Assigning a gesture action to a remappable button does not establish a separate gesture button.

Not available

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Scroll wheel

Notched9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH rates the scroll wheel detents good to very good, and says the wheel could lock in more distinctly.

Notched6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: 24-step Optical Scroll Wheel.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 24-step Optical wheel.

Scroll mode switchiHow the wheel changes between notched and free-spin modes. None means there is no such mode-switch mechanism.

Not available

None6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Specs tab and complete guide layout show a 24-step wheel and no mode-change control.

Separate thumb wheeliA separate side wheel operated by the thumb. Tilting the central scroll wheel does not count.

No9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH lists main buttons, scroll wheel, two side buttons and the underside pairing and profile controls. No thumb wheel is listed.

No5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Complete exact-model control layout has one central scroll wheel and no separate thumb wheel or dedicated profile, gesture or DPI-shift control. Remappable software actions are excluded.

Scroll wheel material

Rubber10Reviewigorslab.de/en/asus-rog-harpe-ii-ace-review-ultralight-esports-mouse-with-42k-sensor-and-speednova-8k-wireless-technology-in-progress/2Read 14 October 2026igor'sLAB: a rubberized scroll wheel with a fine texture.

Not available

Build

2 of 6 differ

Shell material

Other2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: next-gen bio-based nylon shell made from castor oil, a bio-based polyamide. No schema option names nylon, so other is stored.

Not available

Surface finishiPublished surface finish, such as matte or textured. Soft-feel wording does not establish rubber material or a chemical coating.

Matte2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: a smooth, matte coating that manages sweat and grease.

Not available

Installed feet materialiMaterial of the factory-installed skates, excluding separately supplied replacements or dot skates. Virgin PTFE means additive-free or explicitly virgin-grade PTFE.

PTFE2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: large PTFE mouse feet with rounded edges. Spec table contents: 100% PTFE mouse feet.

PTFE1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026100% PTFE7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: 100% PTFE feet.

Installed skate piecesiNumber of separate factory-installed skate pieces, including a sensor ring. Excludes spare skates supplied in the box.

32Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Box contents list a set of 100% PTFE feet: 2 semi-circle feet and 1 for the sensor. Profesional Review and Noticias3D describe the installed set the same way: two large feet and one around the sensor.12Reviewprofesionalreview.com/2025/12/25/asus-rog-harpe-ii-ace-review/ampRead 14 October 2026Review: two large 100% PTFE skates, front and rear, plus a skate around the sensor.

35Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 2 underside drawing: front pad, rear pad and sensor ring.

Feet shapeiGeometry of the installed skates. Pads plus a sensor ring are mixed. Separate dots are dots.

Mixed2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Two semi-circle pads plus a sensor ring.

Mixed5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 2 underside drawing: pads plus sensor ring.

Feet thickness

Not available

Not available

Cable

2 of 5 differ

Cable

Paracord1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Cable: 2-meter ROG Paracord.

Not available

Cable length

2m1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Cable: 2-meter ROG Paracord.

Not available

Detachable cableiThe cable unplugs from an external socket on the mouse without opening it. A service-replaceable internal cable does not count.

Yes1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Connectivity: USB 2.0 (Type-C to Type-A). The box lists a separate ROG Paracord, and a USB-C port is on the front of the mouse.

Yes3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one detachable USB Type A-to-C cable.

Port on mouseiExternally accessible data/charging socket on the mouse. A fixed cable is none. USB-C describes the connector, not a transfer-speed version.

USB-C1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Connectivity: USB 2.0 (Type-C to Type-A). A retailer lists a USB Type-C charging port.

USB-C3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: USB-C mouse port.

Cable host plugiConnector on the computer end of the supplied or fixed cable, independent of the mouse-end connector.

USB-A1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Connectivity: USB 2.0 (Type-C to Type-A), so the host end is USB-A.

USB-A3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one USB Type A-to-C cable.

Connectivity

7 of 13 differ

ConnectionsiConnections that carry mouse input data. A USB cable used only for charging does not establish wired USB operation.

USB (wired), 2.4 GHz, Bluetooth1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Connectivity: USB 2.0, Bluetooth 5.1, RF 2.4GHz.

2.4 GHz, USB (wired)1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer HyperSpeed Wireless Gen 2 and Wired.

Wireless technology

ROG SpeedNova 8K2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: ROG SpeedNova 8K wireless technology, native 8000 Hz wireless polling with no extra booster.

Razer HyperSpeed Wireless Gen-21Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Razer HyperSpeed Wireless Gen 2 and Wired.

BluetoothiThe version number only, such as 5.1. LE and Low Energy are left out. A source that names only Bluetooth Low Energy gives no version.

5.11Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Connectivity: Bluetooth 5.1.

Not available

Saved Bluetooth pairing slotsiNumber of Bluetooth hosts whose pairing the mouse remembers. A limit of one concurrently connected host does not establish the number of saved slots.

Not available

Not available

Switchable host devicesiNumber of host devices selectable through the documented mouse controls without manually moving a data cable. Not the number of physical receivers or simultaneous active links alone.

Not available

Not available

Device switching

Not available

Not available

Receiver host connectoriHost plug on the included small receiver. A larger cabled receiver is described in source notes. This differs from the charging cable’s plug.

USB-A7Retailer pagedirectcomputers.co.uk/products/asus-rog-harpe-ii-ace-gaming-mouse-wireless-bluetooth-usb-48g-lightweight-42000-dpi-8k-polling-5-programmable-buttons-blackRead 14 October 2026Retailer: wireless receiver interface USB Type-A.

Not available

Receiver storage in mouse

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: a storage bay for the receiver. The dongle cannot be lost on the road.12Reviewprofesionalreview.com/2025/12/25/asus-rog-harpe-ii-ace-review/ampRead 14 October 2026Review: the wireless dongle stores vertically in a slot on the mouse.

Not available

Receiver extender includediAn included adapter, dock or cabled receiver arrangement moves the receiver closer to the mouse. A charging-only adapter does not count.

Yes1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Contents: 1 x Wireless Receiver Extender.

Yes15Reviewtechradar.com/computing/mice/razer-viper-v4-pro-reviewRead 8 October 2026Included hemispherical receiver connects to the PC through the supplied USB-C to USB-A cable, allowing it to sit near the mouse. No separate compact receiver extender is claimed.

Receiver pairing sharediA receiver can pair with another supported device, such as a keyboard, at the same time. This does not mean the mouse switches between computers.

No3Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ Q3: no Omni receiver one-to-two pairing. The mouse cannot pair with other devices' receivers and other devices cannot pair with its receiver.

Not available

Wireless rangeiPublished range and test conditions. A recommended receiver distance or minimum reliable range is not an exact maximum.

Not available

Not available

Basic mouse OS supportiOperating systems supported for basic input. Configuration software support is listed separately and may require a newer OS version.

Windows1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table OS: Windows 10, Windows 11.

Windows, macOS3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Hardware platform: Mac, PC5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 4 system requirements: Synapse needs Windows 11 or later, or macOS 15 or later on Apple Silicon M-series. Synapse Web is named separately by the launch release.

ConsolesiConsole families explicitly supported. Source notes identify exact consoles, games and reduced polling or software functions.

Not available

Not available

Battery

6 of 17 differ

Battery type

Li-ion1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Battery Type: Lithium-ion battery. The capacity in mAh is not published.

Li-ion5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide printed p 32: the Viper V4 Pro contains a Li-ion rechargeable battery.

Disposable battery countiNumber of disposable cells, such as AA or AAA. Do not use this field for internal rechargeable cells.

Not available

Not available

Battery capacityiPublished or physically identified internal battery capacity. Do not calculate mAh from claimed runtime or compare capacities across unverified hardware revisions.

Not available

Not available

User-replaceable batteryiBattery replacement is a supported user procedure. The ability to open and modify the mouse does not establish this feature.

Not available

Not available

Battery life by mode (claimed)iOne manufacturer or published product claim per documented connection, polling rate and lighting condition. Omit unstated conditions. Source notes identify performance, switch and haptic modes and whether runtime is up to a value.

AASUS ROG Harpe II Ace

Connection	Polling rate (Hz)	Lighting during claim	Claimed runtime (h)
2.4 GHz	1,000	Off	101
2.4 GHz	1,000	On	84
Bluetooth	Not available	Off	101
Bluetooth	Not available	On	84

Source2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page footnote: in 2.4 GHz (1000 Hz polling rate) and Bluetooth mode, up to 101 hours with lighting off and up to 84 hours with default lighting on. The Bluetooth polling rate is not stated.

BRazer Viper V4 Pro

Connection	Polling rate (Hz)	Claimed runtime (h)
2.4 GHz	1,000	180
2.4 GHz	8,000	45

Source7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026Normal public View All Specifications dialog: up to 180 hours at 1000 Hz and 45 hours at 8000 Hz.

Battery life (up to)iManufacturer estimate of days of normal use between full charges. This includes periods when the mouse is idle. It is not continuous runtime. Source notes preserve usage conditions and qualifiers when published. Do not convert this estimate to continuous hours.

Not available

Not available

Battery life (normal use)iManufacturer estimate of calendar months of normal use between charges or battery replacements. It is not continuous runtime. Source notes retain approximate, up-to, or-more and operating-mode qualifiers. Do not convert this estimate to continuous hours.

Not available

Not available

Longest battery life

101h=CalculatedFrom Battery life by mode (claimed)

180h=CalculatedFrom Battery life by mode (claimed)

Battery life at 1000 HziLongest stored claim explicitly at 1000 Hz over 2.4 GHz. A claim without a confirmed polling rate is excluded.

101h=CalculatedFrom Battery life by mode (claimed)

180h=CalculatedFrom Battery life by mode (claimed)

Battery life on Bluetooth

101h=CalculatedFrom Battery life by mode (claimed)

Not available

Charging port

USB-C1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table: USB 2.0 Type-C to Type-A cable. A retailer lists a USB Type-C charging port.

USB-C3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026USB-C charging5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: charging through the USB-C mouse port.

Full charge timeiClaimed time from empty to full charge, in minutes. Approximation and charging setup are stated in source notes.

Not available

240min5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 5: about 4 hours from completely depleted battery. Approximate claim converted exactly to minutes.

Quick charge

Not available

Not available

Use while chargingiMouse input works while the internal battery charges through the documented wired or dock arrangement.

Yes10Reviewigorslab.de/en/asus-rog-harpe-ii-ace-review-ultralight-esports-mouse-with-42k-sensor-and-speednova-8k-wireless-technology-in-progress/2Read 14 October 2026igor'sLAB: the red ROG paracord cable is for charging or wired operation. Profesional Review: the cable also charges the battery.

Yes5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide pp 5–6: USB charging connection and Wired Mode use same included Type-A-to-C cable.

Charging system compatibilityiNamed wireless charging pad or contact dock. Source notes distinguish inductive pads from pogo-pin contact charging.

Not available

Not available

Charging dock included

Not available

Not available

Battery indicator

Not available

LED1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026LED on the dongle shows battery level5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed p 7 DPI and indicator chart: configurable dongle DPI and battery LED indicators. Status LED colours are not decorative RGB.

Lighting

3 of 4 differ

Decorative RGB lightingiUser-configurable decorative lighting. A multicolour status, DPI or battery indicator alone is not decorative RGB.

Yes1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Lighting: scroll wheel. AURA Sync: Yes.

No6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Normal public Specs tab: RGB Lighting None.7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: RGB None.

Decorative lighting zonesiNumber of independently controlled decorative lighting zones. Status indicator LEDs are excluded.

11Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Lighting: Scroll wheel. One lit part, the scroll wheel.

Not available

Lighting sync

ASUS Aura Sync1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table: AURA Sync Yes.

Not available

DPI indicator

LED9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: the scroll wheel lighting shows the chosen DPI level.

LED5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 7: DPI stages indicated by mouse LED colours. Dongle indicators can also be configured for DPI.

Software

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Software

Gear Link1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Software: Gear Link.

Razer Synapse1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Configuration software platformsiPlatforms explicitly supported for configuring this exact model. Basic input compatibility and availability of a generic app on another platform do not establish model support.

Web2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page: configure the mouse directly in a web browser, no downloads needed, with Gear Link.

Windows, macOS, Web2Press releaserazer.com/newsroom/product-news/viper-v4-pro-gigantus-v2-proRead 30 September 2026Razer Synapse Web for browser tuning without installing software3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 2026Razer Synapse 4 compatible on PC and Mac5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide p 4: Windows 11 or later, macOS 15 or later on Apple Silicon M-series. Synapse Web announced separately.

Onboard memoryiDocumented settings remain available without configuration software running. Which settings persist is stated in source notes.

Yes2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page footnote: onboard memory does not support macros and Windows shortcuts.9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: five profiles stay in the mouse's memory after set-up.

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20267Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Onboard Memory Profiles 1.

Onboard profilesiMaximum distinct hardware-stored profiles. Software game profiles and factory preset profiles do not establish this maximum.

53Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ: pressing the DPI button and the scroll wheel together switches between 5 memory profiles.

11Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026One onboard profile7Maker product pagerazer.com/gaming-mice/razer-viper-v4-pro/RZ01-05630100-R3U1Read 30 September 2026View All Specifications dialog: Onboard Memory Profiles 1.

Macros

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: buttons can be assigned macros and quick-access actions. The Gear Link companion is needed for those.

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 20266 programmable controls, from essential commands to complex macros

Macros stored onboardiMacros themselves execute from mouse memory without the configuration app. Onboard DPI or button assignments alone do not prove onboard macros.

No2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026Page footnote: onboard memory does not support macros and Windows shortcuts.

Not available

Button remapping

Yes9Measurementpcgameshardware.de/Maeuse-Hardware-255539/Tests/Asus-ROG-Harpe-2-Ace-Preis-Review-Release-1545321Read 14 October 2026PCGH: main buttons, side buttons and scroll wheel can be assigned keyboard, mouse and multimedia functions, macros or quick-access actions in Gear Link.

Yes1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Per-app profiles

Not available

Not available

User firmware updatesiA public user-accessible updater or documented software firmware-update procedure exists for this exact model.

Yes3Maker product pageasus.com/hk/support/faq/1055698Read 14 October 2026ASUS FAQ Q1: update the device with Gear Link, with a firmware update procedure linked.

Yes6Maker product pagemysupport.razer.com/app/answers/detail/a_id/20775Read 30 September 2026Official Drivers & Downloads list Viper V4 Pro firmware updater v 1.04.01_r 1, 23 June 2026.

In the box

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In the boxiDocumented contents of the specified colour or bundle. Installed parts and optional extras are distinguished in source notes.

1× P723 ROG Harpe II Ace gaming mouse, 1× Wireless Receiver, 1× Wireless Receiver Extender, 1× ROG Paracord, 1 set× Mouse grip tape (4 pcs, one-time stick), 1 set× 100% PTFE Mouse Feet (2 semi-circle, 1 for sensor), 1× Thank you card + Hotkey QSG, 1× Warranty Card, 1× Quick Start Guide, 1× ROG logo sticker1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Contents: P723 mouse, wireless receiver, receiver extender, ROG Paracord, grip tape set (4 pcs), PTFE mouse feet (2 semi-circle, 1 for sensor), thank you card with hotkey guide, warranty card, quick start guide, ROG logo sticker.

Razer Viper V4 Pro, Razer HyperSpeed Wireless Gen-2 dongle, USB Type A to Type C cable, Razer Mouse Grip Tape, Important product information guide5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Master Guide pp 2–3, What’s Inside. Includes previously omitted information guide.

Cables included

AASUS ROG Harpe II Ace

Type	Cable count
ROG Paracord (USB-C to USB-A)	1

Source1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Contents: 1 x ROG Paracord. The cable is USB-C to USB-A.

BRazer Viper V4 Pro

Type	Cable count
USB Type A to USB Type C	1

Source3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–6, charging and Wired Mode: one detachable USB Type A-to-C cable.

Extra skates includediAn extra usable skate set is supplied separately from installed skates, including an alternative dot set. Factory protective film is not a spare skate.

Yes1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Contents: 1 set of 100% PTFE mouse feet in the box. Product page says the consumable mouse feet are not covered by warranty.

Not available

Grip tape

Yes1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026Spec table Contents: 1 set of mouse grip tape (4 pcs, one-time stick).

Yes3Retailer pageamazon.com/dp/B0GMLBSSTDRead 30 September 20265Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Printed pp 2–3, What’s Inside: Razer Mouse Grip Tape included.

Links

Not compared

Product page

rog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace2Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-aceRead 14 October 2026

www.razer.com/gaming-mice/razer-viper-v4-pro1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026

Spec sheet

rog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/spec1Maker product pagerog.asus.com/us/mice-mouse-pads/mice/ambidextrous/rog-harpe-ii-ace/specRead 14 October 2026ASUS US Tech Specs page for the ROG Harpe II Ace Gaming Mouse, model P723.

Not available

Manual

Not available

dl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdf5Owner's manualdl.razerzone.com/master-guides/RazerSynapse4/VIPERV4PRO-00000229-en.pdfRead 30 September 2026Official support User Guides -> English link. Exact maker 34-page Master Guide, read as a public PDF.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year6Retailer pageeshop.asus.com/us/90mp0490-bmaa00-rog-harpe-ii-ace.htmlRead 14 October 2026ASUS eShop US: 1-year manufacturer's limited warranty.

2years1Maker product pagerazer.com/gaming-mice/razer-viper-v4-proRead 30 September 2026US page: 'Get up to 2 years of warranty'

Both are also in the API. Back to all mice.