Keeps the parallel port on a pc free by using usb instead connect multiple printers using usb instead of parallel eliminates the need for a switchbox by using usb ports why waste your parallel port on your high-speed printer with cables to go's usb to ieee-1284 printer cable, you can use your usb port on your pc or hub and 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.- Connectors: one usb a to centronics 36 male.- Perfect for inkjet, laser and other high-speed printers.- Auto negotiates hardware recognition for faster protocol setup.- Fully plug n play compatible.- Compliant with usb 1.0 Specifications.- Compatible with microsoft windows 98, windows me, windows 2000, windows xp and windows vista.- Includes manual and driver disk. Features connector 1 usb a connector 2 centronics 36 cable length 1.83 M weight & dimensions weight imperial 0.544 Kg 1.2 Lbs