[Plug u0026amp; Play]: The Number pad with 1,000 Hz polling rate, NumLock u0026amp; Back Space Key. Just plug and play. Perfectly Match the number pad to your keyboards. [NOTE: This numeric keypad is not fully compatible with Mac OS X. Function keys do not work, while the other keys can work fine.]

[Energy-Saving]: With computer Sleep/Wake-up function and keypad Sleep-wake up function. Can save the energy of the device if unused for a while.

[Removable Keycaps]: With the detachable keycaps. You can replace keycaps that you like.

[Great Feel of Keypad]: The key switches can bring you a great feel of keypad. Very suitable for data entry personnel and excellent for notebooks u0026amp; laptops without a number pad.

[With a Long life]: The number pad is rated for more than 5 millions of keypresses, which is beyond the standard duty expectation of a membrane keypad.

n Feature:
A must have to extand your keyboard
The perfect accessory to complete your workspace. Featuring a full keypad with number lock, every notebook or laptop pro will become dependant on the numeric keypad once you have tried it! Use it, you will find your work effciency and productivity will be improved greatly.

With a 78 inch braid cable
The keypad has a 78 inch braid cable, you can make a suitable length that you like.

Just plug u0026 play
Just plug u0026 play, no need battery.

System requirements
Windows 95 98 2000 ME XP Vista Win7 Win8 Win10

Specification:
• Keys: 22 blue Mechanical Blue key switch
• Synchronize design
• Blue Mechanical key switch
• Demensions: 5.5(L) x 3.4(W) x 1.4(H) inch
• Life: More than 50 million times of usage
• Usb cable length: 78 inch
• Item weight: 8.8 oz

Package include:
• 1 x Mechanical Numerical Keypad
• 1 x English use manual