With Keyspan's USB Parallel Printer Adapter it's a snap to connect parallel printers to the USB port on your PC. Connecting your printer to the USB port leaves the parallel port free for ZIP drives or other parallel devices. Using your USB port for a printer connection also provides a convenient way to connect multiple printers to your PC.??This adapter is designed for HP, Epson and Canon inkjet and laser printers.??For a complete compatibility list please refer to the original manufacturer's web site.