Kensington Pocket KeyPad with 2-Port USB Hub Kensington Edge: Not just a convenient keypad, but a 2-Port USB hub, all in one. Standard 17-key layout makes data entry and spreadsheets simple even on a notebook. Take extra built-in USB ports with you anywhere to quickly connect any USB device. Slim. lightweight, designed for travel - can operate separately from notebook for less confusion. Easy, USB plug and play connectivity, with a 24" flexible cord - Windows or Mac compatible