The Usb To Db25 Ieee-1284 Printer Cable By Cables To Go Enables A Parallel Printer To Be Connected To A Usb Port On A Pc Or Hub. This Is Ideal For Computers Without A Parallel Port Or In Order To Free-Up The Parallel Port For A Zip Drive Or Scanner. Forget The Hassles Of Irq Sharing By Adapting Your High-Speed Printer To Usb. If You Have Multiple Printers, You Can Eliminate The Need For A Switchbox By Connecting Each Printer To A Usb Port. The Device Is Fully Transparent To The User And Is Ideal For True Bi-Directional Communication