It is an encapsulated Smooth Stepper Board that connect to the PC using the USB port and puts out two DB25 connectors that emulates two parallel ports.

Optional Items are the USB Cable and Parallel Port Cables.

http://www.cnc4pc.com/Store/osc/product_info.php?cPath=29&products_id=205

http://www.cnc4pc.com/Store/osc/product_info.php?products_id=76

$238.00