Keyboards / Compare

Keychron K2 HE vs NuPhy Air75 HE

A

Product A: Keychron

K2 HE

84 of 164 known

Change Keychron K2 HE

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B

Product B: NuPhy

Air75 HE

88 of 164 known

Change NuPhy Air75 HE

Compare the Keychron K2 HE with

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All 164 fields

Every value links to where we found it.

Only differences

AKeychron K2 HE

BNuPhy Air75 HE

General

3 of 9 differ

Series

Not available

Air HE4Reviewrtings.com/keyboard/reviews/nuphy/air75-heRead 23 October 2026Public exact-model introduction calls this the Air HE series.

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

K2H-J1, K2H-J1G, K2H-F1, K2H-F1G, K2H-Q1, K2H-Q1G, K2H-F1-BO, K2H-F1-DE, K2H-F1-UK, K2H-F1-SW2Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboard.jsonRead 30 September 2026

Keyboard Air75 HE(Silver/Magnetic Jade), Keyboard Air75 HE(Silver/POM|Magnetic Jade)5Maker product pagepay.nuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboard.jsRead 23 October 2026Only Jade and Jade Pro configurations with optional wrist rest None and optional keycaps None. Maker labels Jade Pro boxes POM Magnetic Jade.

GTIN / EAN

4895248888994, 4894979071552, 4895248889175, 4894979071569, 4895248889182, 4894979071576, 4894979013583, 4894979051950, 4894979017628, 48949790276892Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboard.jsonRead 30 September 2026Barcode per SKU from the store data. Best Buy lists UPC 4895248889045 for K2H-J1, not used

6976604917270, 69766049172875Maker product pagepay.nuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboard.jsRead 23 October 2026Exact barcodes of the two base switch configurations.

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

Not available

Not available

Status

Available1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Available1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Current maker page states in stock and ships in one to two business days.

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.

$1306Press releaseprnewswire.com/news-releases/keychron-launches-award-winning-k2-he-wireless-magnetic-custom-keyboard-for-direct-sales-following-1m-kickstarter-success-302330977.htmlRead 30 September 2026Manufacturer direct-sales announcement, Dec 13, 2024: starting at USD 130 for the Standard edition. This is the maker launch price, not a current rounded store price.

Not available

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-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Silver5Maker product pagepay.nuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboard.jsRead 23 October 2026Maker SKU names both configurations Silver.

Segment

Gaming1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Maker presents magnetic gaming controls and competitive gameplay as a main use.

Gaming1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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

Complete3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026Fully Assembled Version. The manual also describes a Barebone Version, not sold on the maker page today

Complete1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Layout

6 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-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

75 %1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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

ANSI, ISO1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

ANSI1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Regional layouts

ANSI, ISO-Nordic, ISO-DE, ISO-UK, ISO-Swiss1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Not available

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.

Not available

841Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact Air75 HE technical specification, not Air60 HE.

Key legends for

macOS, Windows1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Windows1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Stock bottom row in exact product render has Windows legends. macOS replacement legends are not assumed from compatibility alone.

Numpad

No3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

No6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Function row

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Yes6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Dedicated arrow keys

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Yes6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Complete section 2 layout and section 3 lighting shortcuts show dedicated arrows. Complete layout establishes F row, row stagger and no numpad.

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

Compact3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026Del, Pg Up, Pg Dn, Home and End in a column on the right

Compact1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact product top render shows Home, End, Page Up and Page Down in the right-side column.

Key stagger

Not available

Row-staggered6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Bottom row

Not available

Not available

Low profile

Not available

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Switches

12 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.

Not available

Magnetic (Hall effect)1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Performance section explicitly describes individual Hall effect sensors.

Switch feel

Linear4Maker product pagekeychron.com/products/gateron-double-rail-magnetic-switchRead 30 September 2026Spec image: Nebula 'Behavior: Linear', 'Pre-lubed: Yes'

Linear8Maker product pagegateron.com/products/gateron-low-profile-magnetic-jade-switchRead 23 October 20269Maker product pagegateron.com/products/gateron-full-pom-low-profile-magnetic-jade-pro-switch-setRead 23 October 2026Exact Full POM Low Profile Magnetic Jade Pro is linear.

Switch maker

Gateron1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Gateron1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Switch models

Gateron Double-Rail Magnetic Nebula Switch Version 1, Gateron Double-Rail Magnetic Nebula Switch Version 21Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Low-Profile Magnetic Jade, Low-Profile Magnetic Jade Pro1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Switch stem

Not available

MX cross7Reviewdamiancooper.medium.com/nuphy-air75he-review-the-magnetic-keyboard-that-finally-gets-it-right-48b4793089aeRead 23 October 2026Gaming Performance section explicitly says Cherry keycaps are compatible with Air75 HE.

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

Not available

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

60gf8Maker product pagekeychron.com/cdn/shop/files/Gateron_Double-Rail_Magnetic_Switches.pngRead 30 September 2026Product comparison diagram: both magnetic switch versions have 60 g end force. The 40 g start force is not actuation force.

50 to 60gf5Maker product pagepay.nuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboard.jsRead 23 October 202610Maker product pagepay.nuphy.com/products/gateron-low-profile-magnetic-jade-switchesRead 23 October 202611Maker product pagepay.nuphy.com/products/gateron-low-profile-magnetic-jade-pro-switchesRead 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

Not available

Total travel

Not available

3.5mm8Maker product pagegateron.com/products/gateron-low-profile-magnetic-jade-switchRead 23 October 2026Exact low-profile Jade switch maker specifies physical travel 3.5 +/- 0.2 mm. This is distinct from selectable actuation ending at 3.3 mm.9Maker product pagegateron.com/products/gateron-full-pom-low-profile-magnetic-jade-pro-switch-setRead 23 October 2026Physical travel 3.5 +/- 0.2 mm.

Rated keystrokes

150million8Maker product pagekeychron.com/cdn/shop/files/Gateron_Double-Rail_Magnetic_Switches.pngRead 30 September 2026Both switch columns in the product comparison diagram specify a lifespan of 150 million clicks.

100million10Maker product pagepay.nuphy.com/products/gateron-low-profile-magnetic-jade-switchesRead 23 October 2026NuPhy exact switch page: 100 million clicks. Compatibility explicitly includes Air75 HE.11Maker product pagepay.nuphy.com/products/gateron-low-profile-magnetic-jade-pro-switchesRead 23 October 2026100 million clicks and Air75 HE compatibility.

Factory-lubed switches

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes8Maker product pagegateron.com/products/gateron-low-profile-magnetic-jade-switchRead 23 October 2026Exact switch specification: factory pre-lubed.9Maker product pagegateron.com/products/gateron-full-pom-low-profile-magnetic-jade-pro-switch-setRead 23 October 2026Exact switch specification: factory pre-lubed.

Adjustable actuation

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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

Min0.2Max3.8mm1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Min0.1Max3.3mm1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact Air75 HE page states this range applies to both low-profile Jade and Jade Pro.

Actuation stepiSmallest documented increment between selectable actuation settings.

0.1mm1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

0.1mm7Reviewdamiancooper.medium.com/nuphy-air75he-review-the-magnetic-keyboard-that-finally-gets-it-right-48b4793089aeRead 23 October 2026Software list item 5 explicitly distinguishes 0.01 mm RT precision and 0.1 mm AP precision. This December 2024 review does not name firmware. The 0.02 mm Air60 HE result is not transferred.

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

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026NuPhyIO section describes per-key rapid-trigger and sensitivity annotations.

Rapid trigger

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'Sensitivity 0.1 mm'

0.01mm1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Rapid Trigger paragraph explicitly says 0.01 mm break.

Multi-action keys

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'Dynamic Keystrokes (DKS)', up to 4 actions per key

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Dynamic Keystroke supports up to four actions per stroke. Mod Tap, Toggle Key and Hyper Tap also described.

SOCD handling

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'Last Key Priority (LKP) & Snap Click', disabled by default

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Hall Effect paragraph names SOCD and Rapid Shift.

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-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Not available

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

Magnetic1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Magnetic1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker requires power off before replacing magnetic switches.

Compatible switches

Version 2 supports Keychron Ultra-fast Lime Magnetic Switches. Version 1 supports only Gateron Double-Rail Magnetic Switches1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Gateron Low-Profile Magnetic Jade and Low-Profile Magnetic Jade Pro switches7Reviewdamiancooper.medium.com/nuphy-air75he-review-the-magnetic-keyboard-that-finally-gets-it-right-48b4793089aeRead 23 October 2026Exact-model review identifies the low-profile Jade Mini and Pro Mini as the hot-swap options.

Stabilizers

PCB screw-in1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Plate-mounted1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Factory-lubed stabilizers

Not available

Yes4Reviewrtings.com/keyboard/reviews/nuphy/air75-heRead 23 October 2026Public exact-model Gaming and Office verdicts explicitly state pre-lubed switches and stabilizers. No membership-only result cells used.

Keycaps

4 of 5 differ

Keycap material

PBT1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Other1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Mixed PBT primary caps and PC accent caps. The box list distinguishes extra PBT and extra PC caps and the exact product render shows fitted transparent accent caps. other represents the mixed set.

Legend method

Doubleshot1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Dye-sub1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker Keycaps paragraph explicitly states five-sided dye-sub nSA.

Keycap profile

Not available

Low profile1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker nSA is low profile.

Keycap thickness

Not available

Not available

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

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

No4Reviewrtings.com/keyboard/reviews/nuphy/air75-heRead 23 October 2026Public review says stock caps lack proper shine-through legends. Transparent accent plastic is not shine-through legends. Optional Canopus caps excluded.

Performance

9 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 K2 HE

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

Source1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'1000 Hz (Wired and 2.4 GHz)', '125 Hz (Bluetooth)'

BNuPhy Air75 HE

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

Source1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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

8,000Hz1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Technical specifications explicitly list 8000 Hz PCB scan separately from wired polling.

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

Not available

0.1ms1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Detailed maker test claims 0.1 ms using CMSIS-DAP, electronic Enter switch closure and subtraction of instrument intrinsic delay. Excludes switch pre-travel. Feature bullets instead say 0.125 ms. Detailed test claim retained as claimed latency.

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

AKeychron K2 HE

Connection	Rollover
USB (wired)	NKRO
2.4 GHz	NKRO

Source1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'N-Key Rollover (NKRO): Yes (wireless & wired)'. Bluetooth not stated separately

BNuPhy Air75 HE

Connection	Rollover
USB (wired)	NKRO

Source1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Technical specifications say N-key rollover. This is explicitly wired-only.

Anti-ghosting

Not available

Yes12Spec databasee-catalog.com/NUPHY-AIR75-HE-JADE-SWITCH.htmRead 23 October 2026Exact Jade Switch model specification lists anti-ghosting and N-KRO. No wireless or sibling-model value used.

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

8 of 18 differ

Connections

USB (wired), 2.4 GHz, Bluetooth1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

USB (wired)1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker feature list explicitly says wired only. No wireless or battery fields stored.

Wireless technology

Not available

Not available

Bluetooth

5.21Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Not available

Bluetooth device slots

31Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 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_K2_HE_User_Manual.pdfRead 30 September 2026Manual Bluetooth-mode section: Fn+1, Fn+2, Fn+3 select paired hosts. The physical switch selects connection mode, not the Bluetooth host.

Not available

Receiver connector

USB-A3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

None1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026The keyboard is explicitly wired-only and uses no receiver.

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_K2_HE_User_Manual.pdfRead 30 September 2026'Bluetooth operating distance: Within 10 meters (open space)'

Not available

Detachable cable

Yes3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Yes6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Port on keyboard

USB-C3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

USB-C6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Section 2 rear-edge diagram shows the USB-C socket. Separate cable is in the maker box list.

Cable plug

USB-A3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

USB-A12Spec databasee-catalog.com/NUPHY-AIR75-HE-JADE-SWITCH.htmRead 23 October 2026Exact model table: USB-A cable with removable connection and USB-C port on keyboard.

Cable

Not available

Not available

Cable length

Not available

1.5m1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

USB passthrough

Not available

Not available

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

macOS, Windows, Linux, iOS, Android1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Spec table: macOS/Windows/Linux. iOS and Android from the OS toggle label in the manual3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Windows, macOS, Linux, Android, iOS1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Consoles

Not available

Not available

Battery

8 of 16 differ

Battery type

Li-Po1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'4000 mAh Rechargeable li-polymer battery'

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

4,000mAh1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 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 K2 HE

Lighting	Hours (h)
Off	110

Source5Maker product pagekeychron.jp/products/keychron-k2-he-wireless-magnetic-switch-custom-keyboardRead 30 September 2026Japanese maker specifications explicitly qualify 110 hours as wireless working time with backlight off. Connection and polling setting are unspecified.

BNuPhy Air75 HE

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.

110h=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.

110h=CalculatedFrom Battery life per mode (claimed)

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-C3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Not available

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

300min3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026'Charging time: Around 5 hours'

Not available

Quick charge

Not available

Not available

Use while charging

Not available

Not available

Solar charging

Not available

Not available

Battery indicator

LED3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026Power indicator LED: low power red blinking, charging static red, full static green

Not available

Build

5 of 8 differ

Case material

ABS plastic bottom with aluminum frame. Special Edition adds wooden side panels.1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Technical specifications: bottom case ABS, Standard aluminum frame, Special Edition aluminum and wood.

Aluminum top case, ABS bottom case1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Plate material

Aluminium1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Not available

Mount style

Tray1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Top1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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.

Foam, position not stated, Silicone bottom, Other1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Sound absorbing foam, EPDM foam, bottom case PET film, silicone bottom pad. The foams have no stated position and are stored as foam. The PET film is stored as other.

PCB foam, Plate foam, Silicone bottom1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Sound paragraph names PCB foam, plate foam and bottom silicone. No other pad or film inferred.

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.

5°, 9.34°, 12.43°1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026'Feet Height / Angle: 5° / 9.34° / 12.43°'

3°, 7°, 10°1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Spill resistant

Not available

Not available

IP rating

Not available

Not available

Lighting

2 of 7 differ

Backlight

RGB per key1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Product feature and technical specifications: north-facing RGB LEDs. Launcher offers per-key colour control.

RGB per key1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026NuPhyIO visual keyboard and per-key lighting configuration, plus south-facing RGB LEDs in technical specifications.

LED position

North-facing1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

South-facing1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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 pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact page Design paragraph names sidelights. Manual section 4 documents their separate brightness, effect, color and speed settings.

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_K2_HE_User_Manual.pdfRead 30 September 2026Media functions printed on F1 to F12

Fn layer1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact product keycap render shows play/pause, previous and next sharing the F row. These are shared Fn media functions, not separate 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

04Reviewrtings.com/keyboard/reviews/nuphy/air75-heRead 23 October 2026Public HTPC verdict explicitly says no dedicated media keys.

Volume control

Not available

Keys1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact product render shows mute, volume down and volume up legends on F10, F11 and F12.

Knobs

Not available

06Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Complete hardware diagram shows 84 typing/function keys, no separate rotary control or macro buttons.

Programmable knob

Not available

Not available

Knob press

Not available

Not available

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

Not available

06Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Built-in screen

Not available

None6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Complete diagram has no screen, touchpad or fingerprint reader.

Touchpad

Not available

No6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

Fingerprint reader

Not available

No6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026

OS mode switch

Switch3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026'Win/Android Mac/iOS (OS Toggle)'

Switch6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Section 1 and rear diagram show M1 Gaming, M2 Win and M3 Mac physical selector.

Windows key lock

Not available

Yes6Owner's manualcdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdfRead 23 October 2026Section 1 explicitly says Gaming mode can disable Win key. RTINGS August 6, 2025 retest also confirms Windows key lock.

Software

2 of 10 differ

Software

Keychron Launcher1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

NuPhyIO1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Software runs on

Web1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Keychron Launcher web app, Chrome/Opera/Edge, wired connection

Web1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker explicitly supports Chromium browsers on Mac, Windows and Linux.

Open firmware

QMK1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Product firmware section specifies QMK and Keychron Launcher. The umbrella QMK/VIA support tag does not establish that this model works with VIA, so VIA is omitted.

Not available

Onboard memory

Not available

Not available

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

Not available

Not available

Macros

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

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-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

Yes1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 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_K2_HE_User_Manual.pdfRead 30 September 2026Four layers: 0 and 1 for Mac, 2 and 3 for Windows

41Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker supports 12 layers split into three modes of four layers each, including the active mode base layer.

User firmware updates

Yes1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 20263Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

Yes13Maker product pagenuphy.io/en-US/firmwareUpdateRead 23 October 2026Select Air75 HE Update History. Firmware v107 dated July 10, 2025 explicitly supports automatic firmware update by holding Escape while powering on with the driver open. v110 dated May 11, 2026 is the latest listed stable firmware. No firmware was installed during research.

Ergonomics

0 of 4 differ

Wrist rest

None1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Complete standard box contents contain no wrist rest. Wrist-rest accessories are sold separately.

None1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Reference variants choose None for separately sold Mono wrist rest.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

3 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.

Depth126.7Height40.7mm(5 × 1.6 in)1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Technical specifications: depth and back height apply to both editions. Standard width/front height are 316.4/30.2 mm, Special Edition 320.5/30.1 mm. Differing dimensions are omitted because this field cannot vary.

Width316.4Depth132.5mm(12.5 × 5.2 in)1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact Air75 HE width and depth. Drawing measures 18.4 mm rear and 12.8 mm front case edges without keycap tops, so these heights are omitted.

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.

980g(2.2 lb)1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026Standard Version 980 g, Special Edition 965 g

702g(1.5 lb)1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact Air75 HE technical specification: 702 grams.

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

Width185Height30Depth350mm(7.3 × 1.2 × 13.8 in)14Retailer pagetomauri.com/products/air75-he-silver-low-profile-magnetic-jadeRead 23 October 2026Distributor labels these individual package dimensions. Separate 24 kg carton weight is for 20 units and is excluded.

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-A to Type-C Cable, 1x Type-A 2.4GHz Receiver, 1x Extension Adapter For Receiver, 1x Keycap & Switch Puller, 1x Screwdriver, 1x Hex Key3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026Fully Assembled Version, plus Mac and Windows keycaps per the product page

Air75 HE Keyboard, 1.5 m cable, Keycap/Switch Puller, 5 Extra PBT Keycaps, 9 Extra PC Keycaps, Quick Guide/Poster1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Exact current global Air75 HE box list. Optional wrist-rest, keycaps, NuFolio, deskmat and NuPack add-ons excluded.

Cables included

AKeychron K2 HE

Type	Count
Type-A to Type-C Cable	1

Source3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

BNuPhy Air75 HE

Type	Count
USB-A to USB-C cable	1

Source1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026Maker lists one 1.5 m cable. Connector types are supported by exact-model E-Catalog entry.12Spec databasee-catalog.com/NUPHY-AIR75-HE-JADE-SWITCH.htmRead 23 October 2026

Spare switches

Not available

Not available

Links

Not compared

Product page

www.keychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboard1Maker product pagekeychron.com/products/keychron-k2-he-wireless-magnetic-switch-keyboardRead 30 September 2026

nuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboard1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026

Spec sheet

Not available

Not available

Manual

cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdf3Owner's manualcdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K2_HE_User_Manual.pdfRead 30 September 2026

cdn.shopify.com/s/files/1/0268/7297/1373/files/NuPhy_Air75_HE_Quick_Guide.pdf1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 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

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.

1year7Maker product pagehelp-center.keychron.com/en-us/article/360021443594-how-long-is-the-keyboard-warranty-forRead 30 September 2026Official support article states 12 months global warranty, dated August 28, 2026.

1year1Maker product pagenuphy.com/products/nuphy-air75-he-magnetic-switch-gaming-keyboardRead 23 October 2026One-year limited warranty from global store. Market is not named.

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