Transfer files via serial connection allows you to extend the reach of your printer or pc to pc connection by 10ft eliminating cable length restrictions replace worn out or missing db9 rs232 cables with this high quality 10ft db9 rs232 serial null modem cable ff backed by startechcoms lifetime warranty the scnm9ff 10ft cross wired serialnull modem cable features two db9 female connectors allowing you to connect a serial printer to a 9 pin serial port or transfer files from pc to pc via