C2G 1.5ft USB to DB9 Serial Cable - RS232 Adapter Cable - Serial adapter - USB - RS-232 - blue
$28,99
CablesToGo
Connecting USB with the traditional RS-232 serial port, this adapter connects cellphones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB port. Has a data transfer rate of over 230 kbps. Since the adapter uses no IRQs, there are