Description: 21 Keys : The 21-key mini customized mechanical keyboard adopts professional gaming chips to get a perfect gaming experience. High Keycap Ladder Design, Sensitive typewriting, reduces error, provides comfortable hand feeling Compact Size: USB-C interface and RGB colorful background light effects; small but not simple, support driver software, can customize function. Plug and Play: Easy to use, comfortable design, suitable for gamers, PS designers, games, office, programming, DIY, etc. life is up to 50 million times, and it can be used for a long time whether it is for games or work. Specification: Material: ABS Plastic Type: Numeric Mechanical Keyboard Model: K21 Interface: USB C Wired Keys: 21 Key Cable length: 1.8m Package Includes: 1 Piece K21 1 Piece USB-C Cable 1 Piece Manual Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thanks!