Item Type: Number Pad Material: ABS Interface: USB Switch Type: Linear Action Switch Connection Method: Wired Keys: 18 1、18 Key: The number pad is a wired 18 key mechanical numeric keypad, the key switch mechanism is mechanical and has a comfortable touch  2、Comfortable Touch: The number pad is ergonomically designed to avoid wrist strain. Just plug in the USB to use, no drivers or installation required  3、Portable Size: The USB number pad is a portable size, which is small and light, you can carry the keypad with you for convenient use  4、ABS Material: The numeric keypad is made of ABS material, which is wear resistant and durable, and has a long service life  5、Scope of Application: The laptop keypad is a wired mechanical linear action switch numeric keypad, suitable for banking, accounting, etc