|USB to RS232 Serial DB9 Adapter Cable with COM Retention Serial adapter|
USB to RS232 Serial DB9 Adapter Cable with COM Retention Serial adapter. The USB to DB9 Serial Adapter provides the connection between USB and the traditional RS-232 serial port. The adapter is designed for connections to Cellular phone, PDA, digital cameras, modems, or ISDN terminal adapters through your USB port with over 230 kbps data transfer rate. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC.