ORICO USB Numeric Keypad 23 Key Portable Slim Number Pad for Notebook Laptop PC, Macbook pro iMac Compatible with Windows and OS X-Black ORICO Multifunctional Portable Numeric Keyboard Glossy and sleek designs, USB port support. Rubber non-slip mats reduce the friction of keyboard and desk Chocolate key cap design + calculator hotkey. Dimension: 146*90*19mm Plug and Play: Taken the compact cute, easy to carry, laptop using no excess. Support Windows 98SE/2000/NT/ME/XP/Vista/7 /8/10 , Mac OS 10.4.X and higher