SIIG"s USB to Serial Adapter Cable is designed to instantly add an additional RS232 9-pin serial port to your computer via an available USB port. The USB to Serial adapter supports data transfer rates up to 500Kb/s and draws power directly from USB bus for low power consumption. It is the perfect solution for connecting additional RS232 serial devices such as modems, ISDN terminal adapters, PDAs, bar code scanners, label printers, and many more.The USB to Serial Adapter Cable is compliant with USB specification, revision 1.1, is FCC and CE approved, and RoHS-compliant. Additionally, it is compatible with a wide variety of Windows operating systems and is backed by SIIG"s limited five year warranty.2KE8821. 8821. Siig SIIG USB to Serial Cable.