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White compact mechanical keyboard with blue switches and RGB backlighting

Corn Electronics

Corn Electronics GK21S Gaming Keyboard White Blue Switch

SKU CH-MG4Y-X56RS

A hot-swappable mechanical kit with Bluetooth 5.1 dual-mode connectivity, per-key RGB lighting and a 750 mAh battery

  • Key SwitchBlue Switch
  • Keyboard ColorWhite

Key Switch Type Blue Switch

Keyboard Color White

  • 32-bit MCU delivers responsive input processing
  • 8M Flash stores custom profiles onboard
  • 8M RGB colours with per-key lighting control
  • Bluetooth 5.1 plus Type-C wired dual-mode connectivity
  • Hot-swappable Kailh sockets let you change switches without soldering

21-Key Bluetooth 5.1 Gaming Kit

The Corn Electronics GK21S is a compact 21-key mechanical keyboard kit aimed at enthusiasts who want a portable numpad or macro pad with wireless freedom. It ships as a white PCB kit fitted with clicky Blue switches and per-key RGB illumination.

750 mAh battery and 8 MB flash

The built-in 750 mAh lithium cell powers the Bluetooth 5.1 link for cable-free use, while a USB Type-C connection provides a wired alternative. Onboard 8 MB flash stores up to three programmable layers of macros and lighting profiles without relying on host software.

Hot-swap Kailh sockets and music rhythm

Hot-pluggable Kailh connectors let you swap Cherry, BOX, Gateron or other three- and five-pin MX switches without soldering. The firmware also drives a music-rhythm lighting mode that reacts to audio input, adding visual feedback that is independent of the key layout.

Points forts

  • 32-bit MCU delivers responsive input processing
  • 8M Flash stores custom profiles onboard
  • 8M RGB colours with per-key lighting control
  • Bluetooth 5.1 plus Type-C wired dual-mode connectivity
  • Hot-swappable Kailh sockets let you change switches without soldering

Caractéristiques

Key SwitchBlue Switch
Keyboard ColorWhite

Autres versions de ce modèle

5 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

Will the GK21S connect via Bluetooth 5.1 to an older desktop that only has USB 2.0 ports?

Yes, the keyboard pairs over Bluetooth 5.1 independently of the USB port version; the Type-C cable is only needed for wired use or charging the 750 mAh battery.

How can I verify the 16.8 million colour RGB lighting and Blue Switch actuation are working correctly after assembly?

Plug the Type-C cable or pair via Bluetooth 5.1, then use the music-rhythm mode and the three programmable macro layers to confirm each key lights and registers.

Does the kit include keycaps and stabilisers, or must I buy them separately?

The kit supplies the hot-swappable PCB, Kailh sockets, plate-mount stabiliser support and Blue Switches; keycaps are not included and must be purchased separately.

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