Keychron K2 HE Rapid Trigger Wireless Keyboard
By Keychron · Mechanical Keyboards · Home & Workspace
- 75% layout with Hall Effect Gateron double-rail magnetic switches
- Rapid trigger, 2.4 GHz and Bluetooth 5.2, QMK support
- Aluminum frame, RGB backlight
- Mac, Windows and Linux compatible
Lowest price seen
~$104.00 (approx.)
from $104.00 at Amazon
- Amazon ~$104.00 (approx.)View at Amazon
- KeychronView at Keychron
- eBay (used) eBay: used, open-box, refurbishedView at eBay (used)
- eBayView at eBay
Prices are snapshots. Check the current price with the store.
Summary
A 75% wireless mechanical keyboard with Gateron Hall-effect magnetic switches, per-key adjustable actuation and rapid trigger, aimed at gamers who want those features without paying flagship prices. Check the switch options before you buy: all three are linear, and the hot-swap sockets only take Gateron double-rail magnetic switches.
Strengths
- Hall-effect switches with rapid trigger, adjustable actuation and four actions per key at a mid-range price.
- Strong reviews across the board, including Tom’s Guide’s Editor’s Choice and a 9/10 from WIRED.
- Deep, dampened typing sound from the EVA foam, EPDM foam and silicone pad.
- Wired and 2.4 GHz run at 1000 Hz for low-latency gaming.
- Bluetooth 5.2 holds up to three devices and was reliable in review testing.
- The browser-based Launcher stores profiles on board.
Weaknesses
- Only three switch choices, and all of them are linear.
- Hot-swap sockets accept Gateron double-rail magnetic switches only, not standard 3-pin or 5-pin switches.
- No dedicated media keys or volume knob.
- It does not wake from idle with a keystroke; the mode slider has to be toggled.
- The case is described as plastic by WIRED, versus the aluminum Q1 HE.
- The tray mount can make the typing feel slightly inconsistent.
Verified specifications
| Model | Keychron K2 HE (Hall Effect), 75% layout, 84 keys. |
|---|---|
| Switches | Gateron double-rail magnetic, pre-lubed, three linear variants: Dawn, Nebula and Aurora. |
| Adjustable actuation | 0.2-3.8 mm per key, in 0.1 mm steps. |
| Rapid Trigger | dynamic, with 0.1 mm reset precision. |
| Dynamic Keystrokes | up to 4 actions per key. |
| Other firmware features | Last Keystroke Prioritization and Snap Click. |
| Connectivity | wired USB-C, 2.4 GHz wireless at 1000 Hz, and Bluetooth 5.2 across up to 3 devices. |
| Polling rate | 1000 Hz wired and 2.4 GHz; 90 Hz over Bluetooth. |
| Battery | 4000 mAh Li-po, up to 110 hours wireless with the backlight off. |
| NKRO | over both wireless and wired. |
| Hot-swap | yes, but Gateron double-rail magnetic switches only. |
| Mount | tray mount. |
| Plate | aluminum. |
| Keycaps | double-shot PBT; Cherry profile on the Standard, OSA profile on the Special Edition. |
| Case | aluminum on the Standard; aluminum with rosewood side panels on the Special Edition. |
| Typing angles | 5° / 9.34° / 12.43°. |
| Backlight | north-facing RGB with 22 effects. |
| Firmware | QMK support plus the Keychron Launcher web configurator. |
| OS support | macOS, Windows, Linux, Android, iOS and iPadOS. |
| Operating environment | -10 to 50 °C. |
| Dimensions (Standard) | 12.45 × 4.98 × 1.6 in; 2.16 lb. |
| Dimensions (Special Edition) | 12.61 × 4.98 × 1.6 in; 2.12 lb. |
| Included | keyboard, USB-A to USB-C cable, 2.4 GHz receiver, keycap/switch puller and documentation (contents vary by edition). |
Full research notes and sources
Switches and customization
The K2 HE runs Gateron double-rail magnetic switches in three pre-lubed linear variants: Dawn, Nebula and Aurora. Actuation is adjustable per key from 0.2 mm to 3.8 mm in 0.1 mm steps, and rapid trigger resets with 0.1 mm precision. Dynamic Keystrokes assign up to four actions to one key, alongside Last Keystroke Prioritization and Snap Click. Tom’s Guide praised the magnetic switches and gaming features; PCWorld highlighted the rapid input.
Customization is the catch. There is no tactile or clicky magnetic option, and the hot-swap sockets only fit Gateron double-rail magnetic switches, so the usual mechanical aftermarket does not apply. Day-to-day changes run through Keychron’s browser-based Launcher, which needs the keyboard plugged in over USB to apply them; editing through VIA or QMK also requires a cable. WIRED listed the proprietary switch ecosystem and the wired-software requirement among its cons.
Connectivity and battery
Wired USB-C and 2.4 GHz both poll at 1000 Hz, while Bluetooth 5.2 polls at 90 Hz and connects up to three devices. Keychron’s Middle East spec sheet lists 125 Hz Bluetooth, but the lower figure is the safer assumption. The 4000 mAh battery is rated up to 110 hours with the backlight off. One quirk owners and reviewers note: pressing a key will not wake the board from idle, so you toggle the physical mode slider instead. Bluetooth reliability drew praise from PCWorld.
Build, sound and daily use
The chassis is a tray mount with an aluminum plate, double-shot PBT keycaps and internal 3.5 mm EVA foam, EPDM foam and silicone pad for acoustics. Sources disagree on the case: Keychron lists aluminum on the Standard, WIRED describes a plastic case with an aluminum plate, and XDA calls it a metal frame over a plastic body. The Special Edition adds rosewood side panels and OSA-profile keycaps. Reviews describe a deep, dampened sound and a well-controlled feel; XDA and PCWorld both call it not as quiet as higher-end boards, and the tray mount can introduce slight inconsistency. There are no dedicated media keys or a volume knob, so media controls need Fn combinations or remapping.
Which model this is
This page covers the Keychron K2 HE in the 75% layout, the 84-key Hall-effect model. It comes in a Standard edition with an aluminum case and Cherry-profile keycaps, and a Special Edition with rosewood side panels and OSA-profile keycaps. Don’t confuse it with the non-HE K2, the K2 Pro, the K2 Max, or the Q1 HE, K4 HE and K8 HE, which share the Hall-effect platform but differ in layout, case and price.
The US Amazon listing for the black variant is ASIN B0DCVQBMVP.
Is it worth it?
Keychron sells the Standard at $130 and the Special Edition at $140 direct. Kickstarter backers paid $125 and $135 in 2024. Snapshots in October 2024 review pages listed it at $111.99 at Best Buy, $179.99 at Walmart and $223.95 at Newegg. Below $110 it is strong value for the full Hall-effect feature set; $111-130 matches Keychron’s own pricing and stays competitive; $131-150 is fair, where you weigh it against the gasket-mounted, aluminum-cased Q1 HE; above $150 it is hard to justify against premium Hall-effect boards with broader switch ecosystems. It fits buyers who want rapid trigger and smart features in a compact board, not those who want switch variety or a heavy all-metal case.
Sources
Manufacturer:
Independent reviews:
