Keyboards / Compare

Keychron K3 HE vs NuPhy Air75 V3

A

Product A: Keychron

K3 HE

91 of 164 known

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B

Product B: NuPhy

Air75 V3

96 of 164 known

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All 164 fields

Every value links to where we found it.

Only differences

AKeychron K3 HE

BNuPhy Air75 V3

General

5 of 9 differ

Series

K HE1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Air V31Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page names the Air V3 series: Air 65 V3, Air 75 V3 and Air 100 V3.

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

K3H-F1, K3H-F1-BO, K3H-F1-DE, K3H-F1-UK, K3H-Q11Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Keyboard Air75 V3(White/Red Nano)-ANSI, Keyboard Air75 V3(White/Brown Nano)-ANSI, Keyboard Air75 V3(White/Blush Nano)-ANSI, Keyboard Air75 V3(Dark/Red Nano)-ANSI, Keyboard Air75 V3(Dark/Brown Nano)-ANSI, Keyboard Air75 V3(Dark/Blush Nano)-ANSI2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Same product on NuPhy's checkout domain. The six ANSI SKUs are Keyboard Air75 V3(White or Dark / Blush, Red or Brown Nano)-ANSI. JIS, DE, UK and FR SKUs are not stored.

GTIN / EAN

4894979045614, 4894979067913, 4894979067906, 4894979066121, 48949790456212Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboard.jsonRead 14 October 2026Barcodes of the five store variants, K3H-F1, K3H-Q1, K3H-F1-BO, K3H-F1-DE and K3H-F1-UK.

6976604918789, 6976604918796, 6976604918802, 6976604918819, 6976604918826, 69766049188332Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Barcode column of the six ANSI SKUs.

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

February 20267Press articlemechkeys.com/ja/blogs/news/keychron-launches-k3-he-and-k3-ultra-low-profile-wireless-keyboards-on-february-12Read 14 October 2026Article dated 2026-02-10 reports the announcement and a February 12 launch date.

June 20258Press articlexiaomitoday.com/nuphy-unveils-air75-v3-low-profile-wireless-mechanical-keyboard-with-long-battery-lifeRead 23 October 2026Launch article of June 12, 2025.9Press articlegreen-keys.info/en/nuphy-air75v3-is-now-available%ef%bd%9cnew-lineup-of-japanese-language-layoutsRead 23 October 2026Article of June 12, 2025: ANSI pre-orders from June 10, 2025.

Status

Available1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Available1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page shows an Add to cart button on the access date.

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

Not available

Not available

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.

$119.991Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 20265Reviewtechradar.com/computing/keyboards/keychron-k3-he-reviewRead 14 October 2026Review published 2026-05-30 lists $119.99 and says the board is available now in black and white. The maker store shows the same price.

$139.958Press articlexiaomitoday.com/nuphy-unveils-air75-v3-low-profile-wireless-mechanical-keyboard-with-long-battery-lifeRead 23 October 2026Article: announced price 139.95 USD. US price. Tax treatment is not stated and US prices are normally without sales tax.9Press articlegreen-keys.info/en/nuphy-air75v3-is-now-available%ef%bd%9cnew-lineup-of-japanese-language-layoutsRead 23 October 2026Listed price 139.95 USD for the ANSI layout.

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

Not available

ColoursiThe maker's own colour names

Black, White1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Black and White. The ISO layouts are sold in Black only.

Nova White, Nebula Dark1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Colour selector lists Nova White and Nebula Dark. Nebula Dark is sold in the ANSI layout only.2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026SKU names carry White and Dark. Colour names Nova White and Nebula Dark are on the product page.

Segment

Gaming1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Portable1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page headline is Wireless Mechanical Keyboard. It pitches the 75% size for small spaces, students and mobile work, and shows a travel case. Stored as portable.

Sold asiParts fitted when sold. A complete keyboard includes switches and keycaps. Barebones includes neither.

Complete1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Complete1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026In the box heading says PRE-BUILT KEYBOARD. Switches and keycaps are fitted.

Layout

3 of 12 differ

Form factoriLayout size or shape. A percentage describes the layout, not the number of keys.

75 %1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

75 %1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Layout ANSI 75%.

Layout standardiPhysical key layout standards sold for this model. Regional language names are listed separately.

ANSI, ISO1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

ANSI1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Scope is the ANSI layout only. The maker also sells JIS, ISO German, ISO British and ISO French layouts. They are not stored.

Regional layouts

ANSI, ISO-Nordic, ISO-German, ISO-UK1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026ISO-Nordic is listed on the page as a pre-order that ships later than the other layouts.

ANSI - US English1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Layout selector: ANSI - US English.

Keys in regional layoutiPhysical typing and function keys in the stated regional layout. Separate media buttons, macro buttons and rotary controls are excluded. A Touch ID or Lock key in a key row counts, as on Apple keyboards.

843Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Specification page states number of keys 84. This is the ANSI count. ISO key count is not published.

841Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Number of Keys 84.

Key legends for

macOS, Windows1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

macOS5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: macOS-biased by default, with all the macOS Fn buttons on the top row. The maker render shows CMD and OPT legends. Windows legends are not confirmed, so only macos is stored.

Numpad

No1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

No1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026The 100% model is the one that features a Numpad. The Air 75 V3 is listed as 75% with 84 keys and the render shows no numpad.

Function row

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: Air 75 V3 features the F-row.

Dedicated arrow keys

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 04 key diagrams show Fn with arrow keys.

Navigation keysiAvailability of Home, End, Page Up and Page Down as dedicated keys or through an Fn layer.

Compact1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Compact6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: the PageDown keycap was swapped for Delete, so PageDown is a dedicated key. The maker render shows PgUp, PgDn, Home and End.

Key stagger

Row-staggered1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Row-staggered1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Maker render shows a row-staggered layout.

Bottom row

Not available

Not available

Low profile

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: thin as 13.2mm. Tech specs list a low-profile switch.

Switches

18 of 25 differ

Switch sensing technologyiKey sensing technology. Hall effect and TMR are different sensor types. A mixed board is identified explicitly. Magnetic switch housing alone does not identify the sensor.

Magnetic (Hall effect)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says the Ultra-Fast Lime low-profile magnetic switches are powered by Hall Effect sensing.

Low-profile mechanical1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Switch Type Low-profile. Switches are mechanical Gateron low-profile 3.0. Stored as low_profile_mechanical.

Switch feel

Linear6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer describes pre-lubed POM linear switches. The maker page does not name the feel.

Linear, Tactile, Silent linear2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Switch cards: Red nano 45gf Linear, Brown nano 50gf Tactile, Blush nano 42gf Linear. Blush is the silent variant (RTINGS: silent linear).3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Spec blocks per colour: Red linear, Brown tactile, Blush linear and silent.

Switch maker

Keychron1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Gateron1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page FAQ: Why choose Gateron Low-profile 3.0 Switches.

Switch models

Keychron Ultra-Fast Lime Low-Profile Magnetic Switch1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Red nano, Brown nano, Blush nano2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Names as sold: Red nano, Brown nano, Blush nano.3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks Low-profile Red, Brown and Blush 3.0, sold on the keyboard as nano.

Switch stem

Not available

Not available

Actuation forceiForce at the point where a key registers. Initial spring force is not actuation force. Adjustable switches require a stated actuation setting.

Not available

42 to 50gf2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Bottom-out forceiForce at the end of the switch travel. It is not the initial spring force or the tactile peak.

Not available

55 to 65gf2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Tactile bump forceiPeak force of the tactile bump. It is not the force at initial movement or at bottom-out.

Not available

Not available

Actuation pointiDistance before a key registers. For adjustable boards, the default profile or setting is stated in the source note.

Not available

1.7mm3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Pre-travel is 1.7 +/- 0.4 mm for Red, Brown and Blush. TweakTown and Tom's Guide also give about 1.7 mm.

Total travel

Not available

3.2 to 3.5mm2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 20263Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 20265Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026

Rated keystrokes

Not available

Not available

Factory-lubed switches

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says the switches are pre-lubed.

Yes3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks: factory lube yes.

Adjustable actuation

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

No7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Header: Output Type Non-Adjustable. Switch type mechanical. Test result cells are behind a membership and were not used.

Actuation rangeiSelectable actuation distances. These are settings, not a measured usable travel range.

Min0.2Max2.9mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as 0.2 to 2.9 mm. TechRadar reports 0.2 to 2.8 mm, the maker value is used.

Not available

Actuation stepiSmallest documented increment between selectable actuation settings.

0.1mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says actuation points can be adjusted from 0.2 to 2.9 mm with 0.1 mm sensitivity.

Not available

Per-key actuationiActuation can be configured individually for supported keys. The source note identifies any excluded keys.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page says each key can be customized.

Not available

Rapid trigger

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Not available

Minimum rapid trigger movementiSmallest selectable movement used to reset or reactivate a key. This is a setting, not measured accuracy.

0.1mm1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table lists Rapid Trigger sensitivity 0.1 mm.

Not available

Multi-action keys

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Dynamic keystrokes, up to four actions per key by press depth.

Not available

SOCD handling

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Last Key Priority (LKP) and Snap Click, both disabled by default.

Yes5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: customizable SOCD resolutions in the NuPhyIO web app. The maker's name for it is not given.

Analog inputiCan send variable gamepad or joystick input. Magnetic sensing or adjustable actuation alone does not establish analog output.

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Analog Mode gives variable gamepad-style input. Listed as Gamepad Analog in the low-profile series comparison.

Not available

Hot-swap socketsiSwitches can be replaced without soldering. Magnetic compatibility must be checked separately.

Magnetic1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table: compatible with Keychron Ultra-Fast Lime Low-Profile magnetic switch only.

5-pin1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Hot-swappable Support Yes. The switch page states 5-pin mounting.3Maker product pagepay.nuphy.com/collections/all-1/products/gateron-low-profile-3-0-switchesRead 23 October 2026Switch spec blocks: 5-pin mounting for all four colours.

Compatible switches

Keychron Ultra-Fast Lime Low-Profile magnetic switch only1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Gateron low-profile 3.0 switches7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Intro: hot-swappable PCB compatible with Gateron low-profile 3.0 switches.

Stabilizers

Plate-mounted1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table lists a plate-mounted stabilizer.

Plate-mounted1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Stabilizer Type Plate Mounted.

Factory-lubed stabilizers

Not available

Not available

Keycaps

0 of 5 differ

Keycap material

PBT1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

PBT1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Keycap Double-shot PBT.

Legend method

Doubleshot1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Doubleshot1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Keycap Double-shot PBT. The JIS review by green-keys calls the legends dye-sub. The maker wording is stored.

Keycap profile

Low profile1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026LSA, low-profile spherical-angled keycaps.

Low profile5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Review: NuPhy's low-profile nSA keycaps. The profile is stored as low_profile.

Keycap thickness

Not available

Not available

Shine-through legendsiLight passes through the legends. Translucent keycap sides alone do not count.

No1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

No7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Sizes and variants table: default keycaps are double-shot PBT that are not shine-through.

Performance

2 of 11 differ

Polling rate per connectioniDocumented report rates for each connection. Required receivers or optional adapters are identified in the row and source note.

AKeychron K3 HE

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	1,000	Not available
2.4 GHz	1,000	Included Type-A 2.4 GHz receiver
Bluetooth	125	Not available

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 20261000 Hz in wired and 2.4 GHz modes, 125 Hz over Bluetooth.

BNuPhy Air75 V3

Connection	Polling rate (Hz)	Receiver or adapter
USB (wired)	1,000	Not available
2.4 GHz	1,000	Included 2.4G dongle
Bluetooth	125	Not available

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: 2.4GHz 1000 Hz, wired 1000 Hz, Bluetooth 5.0 125 Hz. The in-the-box list includes the 2.4G dongle.

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (2.4 GHz)

1,000Hz=CalculatedFrom Polling rate per connection

1,000Hz=CalculatedFrom Polling rate per connection

Polling rate (Bluetooth)

125Hz=CalculatedFrom Polling rate per connection

125Hz=CalculatedFrom Polling rate per connection

Scan rateiHow often the keyboard reads its switches. A USB report rate does not establish a scan rate.

Not available

Not available

Input latency (claimed)iMaker-published input or response latency with conditions in the source note. Do not calculate this from polling rate.

Not available

Not available

Key rollover per connectioniKeys registered simultaneously over the stated connection. Connection is omitted if the source does not specify it.

AKeychron K3 HE

Connection	Rollover
USB (wired)	NKRO
2.4 GHz	NKRO
Bluetooth	NKRO

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Page lists N-key rollover as Yes for wireless and wired. Wireless covers both 2.4 GHz and Bluetooth.

BNuPhy Air75 V3

Rollover
NKRO

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: N-key Rollover Support Yes. The page does not split it by connection.

Anti-ghosting

Not available

Not available

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for one tested setup per row. Settings and test method are stated in the source note. Missing conditions are not inferred.

Not available

Not available

Actuation point (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Total travel (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Operating force (measured)iReviewer-measured force at actuation. The switch and actuation setting are stated in the source note.

Not available

Not available

Typing noise (measured)iReviewer-measured A-weighted typing sound level. Measurement distance and conditions are stated in the source note.

Not available

Not available

Battery life (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iReviewer-measured keyboard weight without cable or wrist rest. The tested configuration is stated in the source note.

Not available

Not available

Connectivity

7 of 18 differ

Connections

USB (wired), 2.4 GHz, Bluetooth1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

USB (wired), 2.4 GHz, Bluetooth1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Mode 2.4GHz, Wired (USB-C) or Bluetooth 5.0.

Wireless technology

Not available

Not available

Bluetooth

5.21Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

5.01Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Bluetooth 5.0. A launch news article says 5.1. The maker page is stored.

Bluetooth device slots

31Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

34Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 03: Fn+1, Fn+2, Fn+3 select Bluetooth 1, 2 and 3. Fn+4 selects 2.4GHz. Long press for 3 seconds pairs.7Reviewrtings.com/keyboard/reviews/nuphy/air75-v3-air65-v3-air100-v3Read 23 October 2026Verdict: Bluetooth with up to three devices at once.

Devices it can switch betweeniDistinct device connections available for switching. Do not infer this by adding wireless modes or paired Bluetooth slots.

Not available

45Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: Paired devices max 4. This fits the manual's three Bluetooth slots plus the 2.4G dongle.

Device switchingiControl used to switch between paired device hosts. Connection-mode and OS switches are described separately.

Keys3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Fn+1, Fn+2 and Fn+3 select Bluetooth hosts.

Keys4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 03: short press of Fn plus a number key switches between devices.

Receiver connector

USB-A1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Not available

Receiver storage in keyboard

Not available

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026The rear edge diagram shows a NuPhy dongle slot. TweakTown also says there is a slot on the back for the dongle.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: a slot on the back for the 2.4 GHz dongle.

Receiver shared with other devices

Not available

Not available

Wireless range

10m3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Bluetooth operating distance within 10 meters in open space.

Not available

Detachable cable

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Charging and wired mode use a Type-C cable plugged into the keyboard port.

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026The box holds a USB-C to USB-C cable and the keyboard has a USB-C port.

Port on keyboard

USB-C1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

USB-C4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Same rear edge diagram: a USB-C port.

Cable plug

USB-C6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer lists a USB-C cable plus USB-A-to-C and C-to-A adapters. The manual lists a Type-C cable and a Type-A to Type-C adapter.

USB-C1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Box list: USB-C to USB-C cable, so the plug at the computer end is USB-C.

Cable

Braided6Reviewhlplanet.com/keychron-k3-he-reviewRead 14 October 2026Reviewer describes a braided right-angled USB-C cable.

Not available

Cable length

Not available

Not available

USB passthrough

Not available

Not available

Works withiSystems on which the keyboard works. Configuration software may have narrower system support.

Windows, macOS, Linux1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Windows, macOS, Linux, iOS, Android1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Compatible System macOS/Windows/Android/iOS. Linux is added from the Tom's Guide and TweakTown spec tables.5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: macOS, Windows, Linux.

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Li-Po1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Not available

Number of batteriesiNumber of replaceable AA or AAA cells required. Internal rechargeable battery packs are not counted here.

Not available

Not available

Battery capacity

2,600mAh1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

4,000mAh1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Battery Capacity 4000mAh. The 2500 mAh figure in the same table is the Air 65 V3.

User-replaceable battery

Not available

Not available

Battery life per mode (claimed)iMaker estimates. Store one published native duration unit per row: hours, days or months. Days and months describe calendar use including idle time, not continuous runtime. Do not convert calendar estimates into hours. Connection, lighting and polling rate are included only when published. Brightness, workload, screen status, sleep settings and up-to qualifiers go in the source note.

AKeychron K3 HE

Hours (h)
55

Source1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as up to 55 hours, lab test results may vary. Connection, lighting and polling rate are not stated.

BNuPhy Air75 V3

Lighting	Hours (h)
Off	1,200
On	100

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: Working Time all lights off up to 1200 hours, all lights on 60~100 hours, both lab test results. Page: measured with RGB lighting turned off for the 1200 hour figure. The up-to value 100 hours is stored for lights on and the 60 hour low end is not. Connection, brightness and effects are not stated.

Longest battery life (claimed)iLongest maker estimate published in hours across the listed modes. Rows published in days or months do not contribute. Conditions can differ between products.

55h=CalculatedFrom Battery life per mode (claimed)

1,200h=CalculatedFrom Battery life per mode (claimed)

Battery life, lighting offiLongest maker estimate published in hours with lighting off. Calendar-day and calendar-month estimates are not converted and do not contribute.

Not available

1,200h=CalculatedFrom Battery life per mode (claimed)

Battery life, lighting oniLongest maker estimate published in hours with lighting enabled. Calendar-day and calendar-month estimates are not converted and do not contribute. Brightness and display conditions are stated in the source note.

Not available

100h=CalculatedFrom Battery life per mode (claimed)

Battery life, backlight on (claimed)iLongest maker up-to estimate published in calendar days with backlighting enabled. Includes idle time and the source-defined usage pattern, not continuous runtime. Brightness, workload, connection and sleep conditions remain in the table and source note. Hours and months are not converted.

Not available

Not available

Battery life, backlight off (claimed)iLongest maker up-to estimate published in calendar months with backlighting off. Includes idle time and the source-defined usage pattern, not continuous runtime. Workload, connection and sleep conditions remain in the table and source note. Hours and days are not converted.

Not available

Not available

Charging port

USB-C1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

USB-C4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 02 diagram: one USB-C port with a cable icon on the rear edge.

Full charge timeiPublished time for a full charge. Approximate times remain qualified in the source note.

228min3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Around 3.8 hours. Manual recommends 5 V 1 A or USB 3.0.

300min10Spec databasegreen-keys.info/en/keyboard/nuphy%EF%B8%8E-air75-v3-us-jisRead 23 October 2026Spec table: charging time about 5 hours for a full charge. Stored as 300 minutes and it is approximate. The maker page does not state a charge time.

Quick charge

Not available

Not available

Use while charging

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Manual says the keyboard can be charged in 2.4GHz, cable and Bluetooth mode.

Not available

Solar charging

Not available

Not available

Battery indicator

LED3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Power indicator LED blinks red when low, stays red while charging and turns green when full. A Batt key is listed on layers 1 and 3.

LED4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Right side RGB bar shows the battery level in colours (red 1 to 10 percent, orange 11 to 95, green 96 to 100). Fn+| turns on a permanent battery display. TweakTown says the sidelights are cosmetic. The manual is stored.

Build

5 of 8 differ

Case material

Aluminum and wood frame with ABS plastic bottom case1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Body material aluminum plus wood, bottom case ABS plastic.

Aluminum top case, ABS bottom case1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Top Case Aluminum, Bottom Case ABS.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: CNC-machined aluminum top case with a brushed finish on the white model and a transparent ABS bottom case.

Plate material

Aluminium1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Polycarbonate1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Plate Material PC.

Mount style

Tray1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Gasket1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Mount Type Gasket.

Flex cuts in PCB

Not available

Not available

Sound dampeningiDampening layers the maker or a review names. Foam whose position in the stack is not stated is foam. Films, pads and silicone parts that fit no other option are other.

Case foam, Silicone bottom, Foam, position not stated, Other1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Sound-absorbing foam of unstated position, bottom case acoustic foam, silicone bottom pad and PET film. Foam of unstated position is stored as foam and PET film as other.

Foam, position not stated, Silicone bottom11Reviewgreen-keys.info/en/nuphy-air75-v3-jis-japanese-array-review%EF%BD%9Cthe-appeal-of-a-low-profile-keyboard-with-a-change-in-keystroke-sound-directionRead 23 October 2026JIS layout review: sound-absorbing foam and a silicone sheet on the bottom, visible through the ABS base. RTINGS also mentions layers of internal sound-dampening material. Foam position is not stated, so it is stored as foam.

Typing anglesiKeyboard slope for each supported foot position, starting with the lowest. An adjustable-foot count does not establish angles. When the maker publishes only the angle with the feet out, that angle is stored alone.

2°, 4.5°, 7.5°1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Spec table angle 2, 4.5 and 7.5 degrees, feet height 2 mm.

4°, 8°, 10°1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Type Angle 4/8/10 degrees. Page: 3-stage adjustable kickstand.

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

1 of 7 differ

Backlight

RGB per key1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

RGB per key1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: North-facing RGB-LED, 20 backlight modes. Per-key lighting is stated by the Tom's Guide spec table.5Reviewtomsguide.com/computing/peripherals/nuphy-air75-v3-reviewRead 23 October 2026Spec table: Backlighting Per-key RGB. TweakTown says the lighting appears to be zone-based. Tom's Guide is stored and the maker page says RGB-LED without a zone count.

LED position

North-facing1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

North-facing1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: Backlight North-facing RGB-LED. The green-keys spec table says south-facing. The maker is stored.6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: north-facing per-key lighting.

Lighting zones

Not available

Not available

Brightness levelsiSelectable onboard brightness steps. The source note states whether the off position is included.

Not available

Not available

Side or underglow lighting

Not available

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Sections 05 and the RGB status guide: left side and right side RGB light bars with their own brightness, effect, colour and speed keys.

Lighting sensors

Not available

Not available

Lighting sync

Not available

Not available

Controls

8 of 12 differ

Media keysiPlayback controlled by separate buttons, an Fn layer or a multifunction knob/rocker. Volume controls are listed separately, and knob presses are excluded from the separate media-button count.

Fn layer3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Media functions sit on the F-row in the Mac layer and on the Fn layer for Windows.

Fn layer1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: a Mac multimedia key layout, with shortcut keys for Mission Control, focus, dictation and screenshots. These are Fn-row keys and no separate media buttons are listed.

Separate media buttonsiSeparate physical buttons for playback or mute, counted once each. Fn shortcuts, macro buttons, knob presses and roller presses are excluded.

Not available

Not available

Volume control

Not available

Knob1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: the top-right position takes a control knob. RTINGS says it controls volume by default.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Knob diagram: volume up, volume down, mute and unmute.

Knobs

03Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Keyboard overview lists no knob.

11Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026One knob position at the top right. Two knob modules, high and low, are in the box for it.

Programmable knob

Not available

Yes1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page, Functional Knob: pair it with NuPhyIO for quicker controls. Page: low-profile knob module and high-profile knob module are both in the box.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 10: NuPhyIO web configurator with Mac and Win layers.

Knob press

Not available

Yes4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Knob diagram: turn for volume up and down, press for mute and unmute.

Separate macro keysiSeparate physical keys or buttons intended for macros. Excludes ordinary remappable keys, media buttons and a dedicated software-launch button.

Not available

01Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026No separate macro keys on the render or in the manual diagrams.4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No separate macro keys in the manual diagrams.

Built-in screen

Not available

None4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No screen in the manual diagrams or the maker render.

Touchpad

Not available

No4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No touchpad in the manual diagrams or the maker render.

Fingerprint reader

Not available

No4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026No fingerprint reader in the manual diagrams or the maker render.

OS mode switch

Switch3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Win/Android and Mac/iOS toggle on the left side.

Switch4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 01: slide switch for Win mode and Mac mode. Section 02: slide switch for power off, wired and wireless.

Windows key lock

Not available

Not available

Software

4 of 10 differ

Software

Keychron Launcher1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

NuPhyIO6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO website, the portal for the latest customization tools.

Software runs on

Web1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Web6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO is a web-based customization tool. RTINGS says NuPhyIO 2.0 also has an offline client, which is not stored as a platform.

Open firmware

QMK1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Not available

Onboard memory

Not available

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: changes are stored in two on-board profiles. Export is advised before a reset.

Onboard profilesiProfiles stored on the keyboard, including fixed defaults when the maker counts them. Software-only profiles are excluded.

Not available

26Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: only two on-board profiles, one for Windows and one for Mac.

Macros

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: NuPhyIO can record and create custom macros.

Macros stored onboardiRecorded command sequences run from keyboard storage without the configuration app. Onboard lighting or remapping alone does not establish this.

Not available

Not available

Key remapping

Yes1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: select a key in NuPhyIO and change its function.

LayersiTotal key mapping layers including the base layer. Lighting effect layers and profile slots are excluded.

43Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Four layers. Layers 0 and 1 for Mac, layers 2 and 3 for Windows.

44Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026Section 10: Mac mode layers 0 to 3 and Win mode layers 4 to 7. That is 4 layers per OS mode and the base layer is included.

User firmware updates

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Firmware update through the Keychron Launcher web app in wired mode.

Yes6Reviewtweaktown.com/reviews/11177/nuphy-air75-v3-low-profile-wireless-keyboard-smooth-operator/index.htmlRead 23 October 2026Review: the NuPhyIO portal upgrades the firmware from the browser.

Ergonomics

0 of 4 differ

Wrist rest

None3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026No wrist rest in the box list. A silicone palm rest is a separate accessory.

None1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026The Mono Wrist Rest is a separate paid add-on and not in the box.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

2 of 6 differ

DimensionsiKeyboard body dimensions with fitted keycaps, without wrist rest and with feet folded. Any different measurement condition is stated in the source note. Width is the longest side, depth runs front to back and height is the thickness. Map by size when the maker's labels differ.

Width318.62Depth126Height25.4Front height22mm(12.5 × 5 × 1 × 0.9 in)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Size 318.62 x 126 mm. Front height 22.0 mm and back height 25.4 mm, both including keycaps. Back height is stored as height.

Width318.9Depth128.9Front height13.2mm(12.6 × 5.1 × 0.5 in)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs: 318.9 mm x 128.9 mm x 13.2 mm. TweakTown and green-keys describe 13.2 mm as the thickness at the front edge, so it is stored as front height and not as height.

Dimensions with wrist rest

Not available

Not available

Keyboard weightiKeyboard without cable or wrist rest. Weights that include accessories cannot be stored here. A cable that cannot be removed is included. Replaceable batteries are included, as built-in batteries are.

575g(1.3 lb)1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026Published as 575 g. The configuration is not stated.

724g(1.6 lb)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Tech specs, Air 75 V3: 724 grams. TweakTown lists 735 grams and Tom's Guide 1.65 lb. The maker is stored.

Weight including wrist restiKeyboard plus supplied wrist rest, excluding packaging. The source note identifies any included cable.

Not available

Not available

Box dimensions

Not available

Not available

Box weightiOne retail package including its contents. A multi-unit shipping carton weight is excluded.

Not available

Not available

Certifications

None of 2 known

Platform certifications

Not available

Not available

Other certifications

Not available

Not available

In the box

2 of 3 differ

In the box

1x Fully Assembled Keyboard, 1x Type-C Cable, 1x Type-A to Type-C Adapter, 1x Type-A 2.4GHz Receiver, 1x Extension Adapter For Receiver, 1x Keycap & Switch Puller, 1x Screwdriver3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026Fully assembled version package list.

Air75 V3 Keyboard, USB-C to USB-C Cable, High-Profile Knob Module, Low-Profile Knob Module, 2.4G Dongle, Screwdriver, Keycap/Switch Puller, User Manual/FAQ Download, Extra Keycaps (6 for ANSI-US)1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Air 75 V3 box list. Extra keycaps: ANSI-US 6, JIS 7, ISO-DE 7, ISO-UK 14, ISO-FR 24. The page says old and new packaging ship at random.2Maker product pagepay.nuphy.com/products/nuphy-air75-v3Read 23 October 2026Page repeats the box list with extra keycaps by layout. ANSI-US has 6.

Cables included

AKeychron K3 HE

Type	Count
Type-C cable	1

Source3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdfRead 14 October 2026

BNuPhy Air75 V3

Type	Count
USB-C to USB-C Cable	1

Source1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Box list: 1 x USB-C to USB-C Cable.

Spare switches

Not available

Not available

Links

Not compared

Product page

www.keychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboard1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

nuphy.com/products/nuphy-air75-v31Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Read in Chrome because curl and WebFetch hit a Vercel security checkpoint and a 429.

Spec sheet

Not available

Not available

Manual

cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K3_HE_User_Manual.pdf1Maker product pagekeychron.com/products/keychron-k3-he-wireless-magnetic-switch-custom-keyboardRead 14 October 2026

cdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdf4Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/Air75_V3.pdfRead 23 October 2026One-page Quick Guide in English, Chinese, Japanese and Korean, linked as User Manual/FAQ on the product page. The PDF is an image and has no text layer.

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

0 of 1 differ

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.

1year4Maker product pagehelp-center.keychron.com/en-us/article/360021443594-how-long-is-the-keyboard-warranty-forRead 14 October 202612 months global warranty.

1year1Maker product pagenuphy.com/products/nuphy-air75-v3Read 23 October 2026Page: 1-Year warranty. The page does not name a market.

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