USB Non-synchronous Notebook Computer Numeric Keyboard with 19 Keys

Features:

1) Ultra-thin computers caps design, Aesthetic appearance

2) Durable structure, long life

3) Non-synchronous digital input, no affection to the other keyboard

Specification:

1) Compatibility: IBM PC AT MAC

2) Button design: 19 bonds

3) Key trip: 3.0 +_0.3mm

4) Surcharging height: 0.25+_0.05mm

5) Maximum pressure: 55+_5g

6) Operating temperature: 0-55C

7) Key life: 800milliomon and above

8) Products size: 100*140*15mm

9) OS:windows 98SE/Me/2000/XP/Vista; Mac os 10.4above