USB to RS232 Full compliance with USB Specification V1.1 Meets All EIA-232 and ITU V.28 Specifications Support the RS232 Serial interface Support over 1Mbps data transfer rate Support automatic handshake mode Support remote wake-up and power management Windows 98/Me/2000/XP and Mac OS8/9 Support,win7 USB full speed communication and bus powered Low Supply Current Than Competition(typical 3mA)