PLC Cables, Inc - Aftermarket USB to Serial adapter, USB to Male 9 pin (DB9), this also comes with our Allen Bradley short 1747-CP3 and short 1761-CBL-PM02. Cable length is a proximity 10ft for USB adapter and about 20" for the other two cables. This is 3 cables in one set, USB to RS232 adapter, USB to 1761-CBL-PM02 and USB to 1747-CP3/1756-CP3.