use This Adapter Cable To Connect Your Inkjet, Laser Or High Speed Printer To A Computer Without A Parallel Port, Or Free Up The Parallel Port For A Zip Drive Or Scanner. Forget The Hassles Of Irq Sharing By Adapting Your Printer To Usb. If You Have Multiple Printers, You Can Eliminate The Need For A Switchbox By Connecting Each Printer To A Usb Port.