SF Cable, 6 ft USB to Serial RS232 DB9 Adapter (Prolific Chipset) Designed for connections to cellular phones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB port. Simply plug your device into the adapter and the adapter into your PC or Mac. COM ports and Baud rates can be modified to desired set up Supports automatic handshake mode. No IRQs, no IRQ conflicts The USB to DB9 provides a connection between an available USB port and the more traditional RS-232 serial port found on many devices. Lifetime Warranty