This USB numeric keypad is a lifesaver!! Let"s see if you"re having a notebook without a 10-key pad or you"re left-handed, then just get this keypad to your PC"s USB port, and it will save you lots of time on serious data entry. Also, the keypad is easy to stow away in your computer bag, neatly out of sight. The Numeric Keypad will have you finish your tasks efficiently. That"s really a small investment to save you so much time!