it is a full size 19 key calculator like keypad. works with notebooks pc and mac. hooks to computer using a usb cable that comes attached. it also features 2 additional usb drives to add additional accessories. very easy to use i have one in box and one that i use it's a plug in and play type of gadget. looking to sell for 12 paypal. or can trade for 25 bv in football.
-John more info can be given on request.

ps. runs on vista, xp, windows millennium, and 2000