You are buying a nicely used Genovation Micropad 630 21 key USB & PS/2 keypad. The USB to PS/2 adapter is not includecd. Features USB uses standard MS Windows USB HID drivers, you can plug the USB into a USB to PS/2 plug to connect with PS/2 keyboard port. 21 keys including Tab, Backspace, Esc and \\ key functions Includes two selectable Num-Lock for switching between number and cursor functions.FAQ\'S

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