1. High Compatibility: The keyboard has a storage function, which can be used on systems such as for Linux, OS X, etc. that support the USB protocol after setting it up on the for system.
2. Wide Range of Uses: Mini 4 key keyboard is widely suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields.
3. 4 Key Design: The dust proof green axis keyboard with 4 customizable shortcut keys, easy to operate, no conflict when connecting multiple keyboards, improve work efficiency.
4. Plug and Play: The mini mechanical keyboard with custom functions is designed with a Type C to USB interface, no driver required, plug and play, convenient and fast.
5. Cool Appearance: Black keys, simple and elegant, with RGB lights, embellish your cool keyboard. Small and lightweight, easy to carry, take up hardly little space.

Spec:
Item Type: 4 Key Keyboard
Material: Acrylic + PCB
Application: Office, games, music, media, industrial control, laboratory, production line testing and other fields.
Lighting: RGB
System Support: for , for VISTA, for Linux, OS X
Button Life: Up to 50 million times
Type: green shaft
Number of Keys: 4 Keys
Product Size: Approx. 100x35x30mm/3.9x1.4x1.2in
Current and Voltage: DC 5V/1A
Working Temperature: -10℃ to 50℃
How to Use:
1. Open the custom software on the computer.
2. On the custom software, click (yellow area) Key Setting area or Knob Setting area and then click the keys KEY1-KEY12 to be set or any key of Knob 1 or Knob 2 (green area); Displays red.
3. Click the function button corresponding to the simulated keyboard on the custom software, click download, and it will prompt that the download is successful, and our custom small keyboard can be used. For example: I want to set the keyboard key 1 as a shortcut key for copying (Ctrl+C), click Key