Number Pad, ROTTAY Mechanical USB Wired Numeric Keypad with Blue LED Backlit 22-Key Numpad for Laptop Desktop Computer PC - Black (Blue switches)

Features: ROTTAY Mechanical Numeric Keypad -- Blue Switches Professional mechanical Blue switches with tactile bump and audible click -- Blue LED adjustable backlit "Esc+Del"=Support three backlit modes(Full-lighting,breathing,lights-off) -- PlUG&PLAY Supports NumLock, ESC, Tab, Delete etc. With shortcut key which can open the computer calculator directly --Support for Windows 2000, for Windows XP, for Windows VISTA, for Windows 7/8 Specifications: Brand name: ROTTAY Material: ABS, aluminium Working voltage: 5V ±0.25V Working current: 350mA max Working temperature: 0+40 ? Weight:255g Size: 140.5x86x36mm Size(with back stands): 177x110x45mm Cable length: 1770mm Color:Black Package includes: 1 x USB Wired Mechanical Numeric Keypad 1 x Manual