Features: USB specification revision 1.1 and 2.0 complaint Support the RS232 Serial interface (DB25 and DB9) Support remote wake-up and power management Support over 1Mbps data transfer rate Windows 98SE/ME/2000/XP Support USB full speed communication and bus powered Suitable for PDA,Modem and other serial devices Package Contents: USB to Serial Adapter (ONE DB9 and ONE Db25) Driver CD