The SK621 White limited Edition 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.