Cooler Master Sk-621-Gklr1-US SK621

Cooler Master Sk-621-Gklr1-US SK621 Cherry MX Low Profile Switches

Cooler Master Sk-621-Gklr1-US SK621 Cherry MX Low Profile Switches

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  • Cherry MX low profile switches - a reduced travel distance and actuation point with the same signature durability and precision.
  • Portable 60% Keyboard layout - mini, unique and compact design with all of the essentials.
  • Hybrid wired & wireless - up to 3 devices supported with Bluetooth 4.0, or use it wired over a removable Type-C USB and charge the battery simultaneously.
  • On-the-fly controls - make real-time adjustments to lighting and macros with No software necessary
  • Easy-to-use software - map 16.7 million colors to any key, customize lighting modes, and fine-tune macros

Specifications Overview

Model SK-621-GKLR1-US
Release Date May 2019

* First availability for purchase, it may not correspond to the actual market launch date.

Connection Bluetooth
Key Switch Type Cherry MX Low Profile Red
Color Black
Backlit RGB
Mechanical Switches Yes
Tenkeyless Yes


The SK621 is a truly portable keyboard with mechanical switches. The 60% format removes the Nav keys and numpad, but still packs all the signature Cooler Master features like on-the-fly controls and Hybrid key rollover. Cherry MX low profile switches with reduced travel and actuation distance means you get all the precision and durability of a mechanical keyboards, but with the slim stylings of a minimalist, chic let keyboard. Add in a refined brushed aluminum housing and Bluetooth wireless capability, and you have the ultimate on-the-go mechanical keyboard.

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