Fully compatible with USB (Universal Serial Bus) VER: 2.0 Support for RS-232 interface The standard DB9 serial needle Serial transmission speed up to 1Mbps Support automatic handshake agreement Support remote wake-up and power management With USB Direct power supply, do not need additional power supply The ASIC chip can support USB port to the serial port communication. Transmission distance: 5m Working circumstance: - 25 to 70 degree ,Celsius Relative humidity 5% to 95% Support Windows95/98/2000/XP/Vista/Server2003/Mac OS-X/OS9、Linux