I purchased this last year and used it for about two weeks before storing it in my closet. I'm selling it because it doesn't suit me. This is the main unit only. Quoted from the official website: 【GX1 Keyboard】 REALFORCE, known for its unique typing feel thanks to its electrostatic capacitive non-contact switches, finally releases a model for gamers! 【Dual-APC】 The APC function has been greatly improved, and it now features a new "Dynamic Mode" (also known as rapid trigger). You can individually configure each key using the dedicated application, and by enabling this, the on and off positions of the keys will follow the key stroke. The key on position can also be adjusted in 30 steps (0.1mm to 3.0mm). 【Silent】 Uses illuminated silent switches. The typing feel remains the same, but the typing sound is silenced. Because the typing sound is less likely to be picked up by the microphone, you can concentrate more on playing the game. 【Design】 REALFORCE's first floating design, which is easy to maintain. Furthermore, a sturdy and stable steel frame is used for the material. It can withstand hard gameplay and provides comfortable use. Connection type...Wired Key switch...Mechanical Keyboard layout...Japanese Other...Gaming keyboard