Item Type: Numeric Keypad_x000D_ Material: ABS_x000D_ Button Life: More Than 10 Million Times_x000D_ Type: USB2.0 Wired_x000D_ Key: 18 Keys_x000D_ Product Size: Approx. 140 x 86 x 20mm / 5.51 x 3.39 x 0.79in ( Manual Measurement Allows Error )_x000D_ Interface: USB1Stable Connection: This 18 keys numeric keypad adopts wired USB2.0, and it supports plug and play, which ensures stable connection and no delay. 2Wide Compatibility: This 18 keys numeric keypad is suitable for Android tablet, for Linux, for Chromebook, for Win XP, For Win Vista, 7, 8, 10. 3Ergonomic Design: This 18 keys numeric keypad features ergonomic design and nonslip pad, providing comfortable use experience. 4Long Service Life: This 18 keys numeric keypad adopts ABS material, the keycaps of a numeric keypad has a long service life of more than 10 million times. 5Silent Working: This 18 keys numeric keypad is easy to press in silence, which is suitable for band, school, office, etc.1 x_x000D_ _x000D_ Numeric Keypad