Description: Hot Swap Mini Keypad: Made of high quality ABS plastic materials, hot swappable switch, fine workmanship and durable, small and light, easy to carry. RGB Backlit: The colorful LED backlight can be adjusted, increase more gaming experience and cool feeling. Macro Programming Keys: The button function can be set by oneself. Custom shortcut key, one-key to achieve complex and tedious operations, such as: one-key copy, paste, one-key zoom and so on. Metal knob, one-hand control, music switching, volume, pause, play, previous, next, zoom out, previous page, next page and other functions. Suitable for office, games, music, media, industrial control, testing and other fields. Plug and Play: USB C interface, standard keyboard, plug and play, no driver required. Compatibility: Support for Mac OS and Windows mini macro Programming mechanical gaming keypad. Specification: Product Size: ( Optional ) 3 Keys: 100x35x37mm/3.94x1.38x1.46inch 4 Keys: 100x35x30mm/3.94x1.38x1.18inch 12 Keys: 130x70x40mm/5.12x2.76x1.57inch Material: ABS Package Includes: 1 Piece Mini Keypad 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping