Keyboards / Compare

Keychron K3 HE vs Logitech G512 X 75

A

Product A: Keychron

K3 HE

91 of 164 known

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B

Product B: Logitech

G512 X 75

88 of 164 known

Change Logitech G512 X 75

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All 164 fields

Every value links to where we found it.

Only differences

AKeychron K3 HE

BLogitech G512 X 75

General

5 of 9 differ

Series

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

G51Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 20264Press releasenews.logitech.com/press-releases/news-details/2026/Introducing-the-Logitech-G512-X-Gaming-Keyboard-Designed-to-be-Tuned-Tweaked-and-Mastered-for-Personalized-Performance/default.aspxRead 8 October 2026

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

920-013927, YU00941Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Exact US Black Linear SKU 920-013927. Embedded product variants[920-013927] names Black, English US (QWERTY), Linear. YU0094 is the support-listed keyboard M/N. Other switch/colour editions and G512 X 98 are excluded from this initial reference configuration.2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Keyboard M/N YU0094 printed on bottom label. Exact selected commerce SKU 920-013927 remains separate from hardware M/N.

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.

0978552089728Retailer pagemicrocenter.com/product/709523/logitech-g-g512-x-75-wired-gaming-keyboard-blackRead 8 October 2026Exact Mfr Part 920-013927 lists UPC 097855208972. Only SKU/UPC identity used. Its TMR switch wording and NKRO claim are not used to override maker factory mechanical configuration or unresolved rollover.

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.

28 April 20264Press releasenews.logitech.com/press-releases/news-details/2026/Introducing-the-Logitech-G512-X-Gaming-Keyboard-Designed-to-be-Tuned-Tweaked-and-Mastered-for-Personalized-Performance/default.aspxRead 8 October 2026

Status

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

Available4Press releasenews.logitech.com/press-releases/news-details/2026/Introducing-the-Logitech-G512-X-Gaming-Keyboard-Designed-to-be-Tuned-Tweaked-and-Mastered-for-Personalized-Performance/default.aspxRead 8 October 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

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.

$179.994Press releasenews.logitech.com/press-releases/news-details/2026/Introducing-the-Logitech-G512-X-Gaming-Keyboard-Designed-to-be-Tuned-Tweaked-and-Mastered-for-Personalized-Performance/default.aspxRead 8 October 2026Maker suggested retail price USD 179.99 for 75 layout, separate from USD 199.99 for 98 layout. Exact US Black Linear reference current list price corroborates same figure. Excludes tax and separately sold palm rest.

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

US1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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.

Black1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Segment

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

Gaming1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Layout

5 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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Selected US ANSI photo has single-row horizontal Enter and wide left Shift. Typing rows 13 + 15 + 15 + 14 + 14 + 10 = 81, excluding two knobs. No ISO/JIS typing count is imported.

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.

US1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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.

812Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

Key legends for

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

Windows1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Numpad

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

No1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Function row

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Dedicated arrow keys

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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

Compact1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026US photo has dedicated Page Up and Page Down in the right column, with Home and End as front-side Fn legends. Therefore compact, not a full dedicated navigation cluster.

Key stagger

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

Row-staggered1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Bottom row

Not available

Not available

Low profile

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

No7Reviewhardwired.pbtech.co.nz/article/2945/logitech-g512-x-75-hands-on-reviewRead 8 October 2026Exact 75 hands-on review explicitly says standard-profile keys sit higher than a slim low-profile keyboard. No force or sound measurement from its Black Tactile configuration is imported. Its G HUB closed behavior conflicts with another review, so it is not used to claim universal runtime dependence.

Switches

14 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.

Mechanical1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Embedded universal mechanical specifications explicitly state 81 preinstalled Tactile or Linear mechanical switches. Selected variant is Linear. TMR sensors are built into 39 beds but are not the sensing path of the factory mechanical switches. This is not a factory Hall-effect or TMR switch configuration.9Reviewrtings.com/keyboard/reviews/logitech/g512-xRead 8 October 2026Public Difference Between Variants identifies tested 75 Black Linear. Public introduction explicitly says full mechanical set fitted, nine magnetic switches supplied to swap in. Protected numeric force, latency, noise, dimensions and mass results are not accessed or transferred.

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.

Linear1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Factory Kailh Linear only. Optional magnetic switches and optional SAPP pressure-point rings do not turn the stock feel into tactile.

Switch maker

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

Kailh2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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

Kailh Linear2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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

40gf2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Factory Kailh Linear manufacturer actuation force 40 ±8 gf at the fixed 2 mm standard mechanical actuation point in the same specification table. Not initial spring force. Optional Gateron KS20 nominal 30 ±10 g lacks an adjustable actuation setting and is not used for the factory scalar.

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

Not available

Not available

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

2mm2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Published standard mechanical 2 mm, describing all 81 fitted Kailh Linear switches. Optional magnetic adjustment is stored separately with 39-bed conditions.

Total travel

Not available

4mm2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker published full travel 4.00 mm for stock mechanical keys. No inference from optional 0.1-4 mm adjustable actuation range. Japanese release specifications qualify mechanical travel 4 ±0.4 mm, distinct from magnetic 4 ±0.2 mm.

Rated keystrokes

Not available

50million2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Published keyboard durability 50 million presses. Stored for factory mechanical configuration. No separate lifetime is assigned to optional KS20 magnetic switches.

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.

Not available

Adjustable actuation

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Only after magnetic switches are installed and scanned in the 39 Dual Swap beds on the left side and arrows. All 81 typing keys are fitted with Kailh Linear mechanical switches at sale. Nine loose Gateron KS20 magnetic switches are supplied in rear storage, not installed under typing keys. Remaining 42 beds are mechanical only.

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.

Min0.1Max4mm1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Applies only after magnetic switches are installed and scanned in the 39 Dual Swap beds. Maker selectable magnetic range 0.1 to 4.0 mm. Factory mechanical actuation remains fixed at 2 mm.

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.

0.1mm5Reviewmezha.ua/en/reviews/oglyad-logitech-g512-x-75-310884Read 8 October 2026Exact 75 review explicitly states magnetic-switch adjustable actuation increments 0.1 mm. Applies after compatible magnetic switches are installed/scanned in 39 Dual Swap beds. It does not apply to the stock mechanical switches. White Tactile test-unit force/mass measurements are excluded.

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.

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Applies only after magnetic switches are installed and scanned in the 39 Dual Swap beds. Maker explicitly says each analog switch can have its own actuation distance. Not all 81 factory mechanical keys are individually adjustable.

Rapid trigger

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Applies only after magnetic switches are installed and scanned in the 39 Dual Swap beds. Exact maker product-tour RAPID TRIGGER text describes dynamic re-actuation for quicker resets. This is not a capability of the 81 fixed mechanical stock keys.

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.

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Applies only after magnetic switches are installed and scanned in the 39 Dual Swap beds. Two actions at different depths are mapped through G HUB. SAPP rings can add a physical pressure point but are not required for software multipoint mapping.3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed page 9 says second actuation is only possible with analog switches. SAPP rings fit keycap stems, not switch stems. Configure Remap Multi Action and O-ring installed in G HUB. Factory mechanical 2 mm keys do not gain depth-sensing from a ring alone.

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.

Yes5Reviewmezha.ua/en/reviews/oglyad-logitech-g512-x-75-310884Read 8 October 2026G HUB analog-switch tab Key Priority gives priority to latest selected input and deactivates prior key. Conditional on compatible installed/scanned magnetic switches in 39 Dual Swap beds. Not a claim that factory mechanical keys produce joystick output.

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.

No9Reviewrtings.com/keyboard/reviews/logitech/g512-xRead 8 October 2026Public Popular Keyboard Comparisons explicitly says the G512 X does not support true analog output for joystick emulation. Magnetic switch-depth sensing, adjustable actuation and multiple binary actions at different depths are distinct from variable gamepad-axis output. No protected test result is used. The review identifies its tested unit as G512 X 75 Black Linear.

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.

Other1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Mixed socket coverage. All 81 beds support mechanical hot-swap. Maker explicitly documents standard 3-pin/5-pin mechanical compatibility in the 39 Dual Swap beds, which additionally accept compatible magnetic switches. Pin compatibility outside those 39 beds is not independently enumerated, so Other avoids implying five-pin support in every typing position.

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

81 mechanical hot-swap beds. The 39 Dual Swap beds additionally accept centered-magnet Gateron KS20-compatible magnetic switches. Standard 3-pin and 5-pin mechanical compatibility is explicitly documented for those 39 beds. The remaining 42 beds support mechanical switches only.1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Maker 39-bed claim and 81 mechanical-bed claim plus manual printed pages 6 to 8. Manual requires power cable disconnected before swapping. Use centered-magnet magnetic switches matching Gateron KS20 magnet placement, and rescan after installation. No universal compatibility with arbitrary magnetic housings is claimed.3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed pages 6-8 repeatedly specify 39 analog-capable beds, left-hand region plus arrows. Centered magnet required. Outside those beds magnetic keys will not work. Disconnect power and rescan using rear Scan button after changes. Game Watch Japanese review says 41, which is rejected against exact maker manual and product page 39.

Stabilizers

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

Not available

Factory-lubed stabilizers

Not available

Not available

Keycaps

2 of 5 differ

Keycap material

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

PBT1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Legend method

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

Doubleshot1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Embedded additional feature PBT DOUBLESHOT KEYCAPS explicitly states double-shot, independently consistent with exact 75 reviews. Cap profile is not published.

Keycap profile

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

Not available

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Same maker additional feature states dual-layer caps let LIGHTSYNC RGB shine through every key. Printed front-side secondary functions are not assumed to illuminate.

Performance

8 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.

BLogitech G512 X 75

Connection	Polling rate (Hz)
USB (wired)	1,000
USB (wired)	8,000

Source3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed page 4 explicitly supports 1 kHz and 8 kHz. Factory default 1 kHz. Selection in G HUB Performance/Report Rate. Other rates, scan rate and latency are not computed from these settings.

Max polling rate

1,000Hz=CalculatedFrom Polling rate per connection

8,000Hz=CalculatedFrom Polling rate per connection

Polling rate (wired)

1,000Hz=CalculatedFrom Polling rate per connection

8,000Hz=CalculatedFrom Polling rate per connection

Polling rate (2.4 GHz)

1,000Hz=CalculatedFrom Polling rate per connection

Not available

Polling rate (Bluetooth)

125Hz=CalculatedFrom Polling rate per connection

Not available

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

0.125ms4Press releasenews.logitech.com/press-releases/news-details/2026/Introducing-the-Logitech-G512-X-Gaming-Keyboard-Designed-to-be-Tuned-Tweaked-and-Mastered-for-Personalized-Performance/default.aspxRead 8 October 2026Literal maker press-release claim: 0.125 ms end-to-end, with True 8K polling, reporting and processing. Stored as manufacturer claim, not calculated from reciprocal 8000 Hz and not a reviewer measurement. Exact latency start/end points, test equipment, workload, firmware, fitted switch type, actuation setting and sample count are not published. It must not be treated as measured button-to-host or display latency.

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.

BLogitech G512 X 75

Not available

Anti-ghosting

Not available

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Exact support table says N key rollover / Anti Ghosting YES but separately Anti-Gosting keys 10. Store anti-ghosting as a limited maker claim. No universal NKRO or invented 10KRO enum is inferred. The key_rollover field is omitted pending resolution.

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

10 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)2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

Wireless technology

Not available

Not available

Bluetooth

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

Not available

Bluetooth device slots

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

Not available

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

Not available

Not available

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.

Not available

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

Not available

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.

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Port on keyboard

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

USB-C2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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-A1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Cable

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

Not available

Cable length

Not available

1.8m1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 20262Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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, macOS2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker at-release platform support Windows and macOS. Exact product data specifies Windows 10 or later, macOS 12 or later. Linux, ChromeOS, mobile and console operation unproved.

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

Not available

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.

BLogitech G512 X 75

Not available

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)

Not available

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

Not available

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

Not available

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

Not available

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.

Not available

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.

Not available

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.

Post-consumer recycled ABS top, middle and bottom case2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker Material Used cell says PCR ABS top/middle/bottom case. Whole device is not described as metal or polycarbonate. No body resin percentage is calculated from the Black 44% whole-plastic-parts sustainability claim.

Plate material

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

Polycarbonate2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker explicitly lists PC switch plate, stored as polycarbonate. Not an aluminum plate inferred from weight or appearance.

Mount style

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

Gasket1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Embedded additional feature PREMIUM GASKET MOUNT explicitly describes silicone gasket mounting. Does not prove stabilizer mounting or PCB flex cuts.6Reviewgame.watch.impress.co.jp/docs/review/rev1/2110360.htmlRead 8 October 2026Japanese review explicitly identifies silicone gasket mounting. Its test units are 75 Black Linear and 98 White Tactile. No JIS key count, 98 size, uncertain 41-bed count or numeric reviewer measurement transferred to the US 81-key reference.

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, Other6Reviewgame.watch.impress.co.jp/docs/review/rev1/2110360.htmlRead 8 October 2026Exact 75 Black Linear sample review explicitly describes urethane foam and cushioning materials. Exact internal location is not established, so the foam is stored as foam rather than guessing case/plate/PCB foam, and the other cushioning as other. Maker additionally identifies silicone gasket noise damping.

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°3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed page 5 default 4 degrees without removable feet, 8 degrees after installing both supplied pullers as rear feet. Both actual supported positions, not a degree estimate from photos.

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

3 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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

LED position

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

Not available

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Front-facing case-edge RGB Lightbar, controlled independently from key lighting in G HUB. Not just key spill light. Front strip is part of keyboard, while the optional acrylic rest amplifies diffusion without LEDs of its own. Total lighting-zone count is not inferred from the front-bar-only 33-zone review figure.

Lighting sensors

Not available

Not available

Lighting sync

Not available

LIGHTSYNC RGB1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Official native US photo front legends show Fn+F9 previous, Fn+F10 play/pause and Fn+F11 next. Fn+F12 mute is a volume function. These are typing-function-key shortcuts, not separate media buttons.

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

01Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Complete physical controls have two rotary knobs plus rear Game Mode and Scan buttons. No separate playback/mute button. Knob press mute is excluded by schema.

Volume control

Not available

Knob1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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.

21Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Programmable knob

Not available

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Knob press

Not available

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Maker additional feature PROGRAMMABLE DIALS explicitly says two clickable, remappable turn dials. Left controls overall brightness by default, right controls volume. Both are counted as knobs.

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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Complete 81-key layout has no extra macro typing buttons. Rear Game Mode and Scan buttons are system controls. Assigning ordinary keys or knob functions to macros does not create dedicated macro keys.

Built-in screen

Not available

Not available

Touchpad

Not available

Not available

Fingerprint reader

Not available

Not available

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.

Not available

Windows key lock

Not available

Yes5Reviewmezha.ua/en/reviews/oglyad-logitech-g512-x-75-310884Read 8 October 2026Exact 75 rear Game Mode button disables Windows key by default, with additional disabled keys configurable through G HUB. Not an OS-mode selector. White Tactile shared control layout corroborated by the US Black maker photo.

Software

6 of 10 differ

Software

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

Logitech G HUB2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

Software runs on

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

Windows, macOS2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

Open firmware

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

Not available

Onboard memory

Not available

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 20262Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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

Not available

32Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Exact support table explicitly states 3 profiles. Does not establish all advanced magnetic features or macros executing without G HUB.

Macros

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Exact maker PROGRAMMABLE DIALS feature explicitly supports quick macros, and ADVANCED G HUB CUSTOMIZATION supports KEYCONTROL layering. Macro execution from keyboard storage with G HUB closed is not established.

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

Yes1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

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.

35Reviewmezha.ua/en/reviews/oglyad-logitech-g512-x-75-310884Read 8 October 2026Exact 75 G HUB assignment description distinguishes base assignments, Fn-combination assignments and one additional G-Shift layer. Three total mapping layers including base. These are not the three onboard profile slots. Software version not published.

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.

Yes3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed page 3 G HUB checks software updates and checks connected G512 X75 for firmware updates, then directs user through instructions. Firmware version for specific review tests is not published.

Ergonomics

1 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 pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026G512 X Palm Rest 75 sold separately. No wrist rest included in this reference box, so optional acrylic rest material and dimensions are not assigned to bundled equipment.

Wrist rest material

Not available

Not available

Tenting

Not available

No3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Printed page 5 shows traditional front-to-back tilt on one rigid keyboard body. No split-half or side-tenting mechanism.

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.

Width330.2Depth155.2Height46.6mm(13 × 6.1 × 1.8 in)2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker component Keyboard height 46.6 mm, width 330.2 mm, depth 155.2 mm. Body with fitted caps, excluding optional palm rest. Published feet position is unknown. Default tilt 4 degrees and optional puller-feet 8 degrees are separate from body measurement condition.

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.

850g(1.9 lb)2Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026Maker Keyboard component mass 850 g, excluding separate cable and optional palm rest. Stored rear-switch/SAPP state is not specified. No reviewer-measured mass is inferred. White Tactile Stuff review lists 862 g without a scale method, so it does not replace the maker value or populate measured_weight_g.

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

3 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.

G512 X 75 keyboard with 81 fitted Kailh Linear mechanical switches, Nine Gateron KS20 magnetic switches stored in the rear compartment, 1.8 m detachable USB-C to USB-A cable, Keycap puller, also an 8-degree tilt foot, Switch puller, also an 8-degree tilt foot, Five alternative black keycaps for Escape and arrows, Five Second Actuation Pressure Point (SAPP) rings, Documentation1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Exact product package contents lists keyboard, 9 loose magnetic switches, 1.8 m USB-C/A cable, two puller/tilt feet, 5 alternative keycaps, 5 SAPP rings and documentation. Nine magnetic switches are stored behind rear cover, not factory typing switches. No bundled palm rest.

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

BLogitech G512 X 75

Type	Count
USB-C to USB-A	1

Source1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Spare switches

Not available

93Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026Nine included loose Gateron KS20 magnetic switches in rear storage. They are upgrade/replacement switches, not identical mechanical spares. Factory 81 installed switches are excluded.

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

www.logitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-0139271Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026

Spec sheet

Not available

support.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-752Maker product pagesupport.logi.com/hc/en-us/articles/39413262252951-Specification-G512-X-75Read 8 October 2026

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

www.logitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdf3Owner's manuallogitech.com/content/dam/support/g-keyboards/g512-x-75/g512-x-75-qsg-amr.pdfRead 8 October 2026

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

1 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.

2years1Maker product pagelogitechg.com/en-us/shop/p/g512-x-75-gaming-keyboard.920-013927Read 8 October 2026Exact US new Black Linear product payload specsAndRequirements declares 2-Year Limited Hardware Warranty. Unrelated refurbished 1-year promotional copy is excluded. Statutory rights excluded.

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