Description: This is USB 2.0 turn to RS232 serial DB9 9 PIN adapter cable USB specification 1.1 and 2.0 compliant Supports RS232 serial interface Supports over 1Mbps data transfer rate Supports remote wake up and power management Compatible with Windows 98\/Se\/ME\/2000\/XP， can NOT work for Vista Package included: 1 x USB to RS232 cable adapter