C2G 26478 USB to 2-Port DB9 Serial RS232 Adapter Cable, TAA Compliant (2 Feet, 0.60 Meters) Convert two DB9 serial devices to USB; great for PDAs and digital cameras Perfect for connecting DB9 devices to a PC without serial ports Connect up to two DB9 devices to a PC using a single USB port Plug and play with no additional power required Supports automatic handshake mode