SODIAL(R) USB 19 Keys Number Keypad Keyboard for Laptop Notebook PC Computer Product Name : USB Numeric Keyboard;Support System : Windows 98SE / 2000 / XP / Vista / os10.4ve Keys Number : 19;USB Cable Length : 125cm / 49.2" Keyboard Size : 13.2 x 10 x 1.5cm / 5.2" x 3.9" x 0.6"(L*W*T);External Material : Plastic Color : Black;Net Weight : 99g