Features: 1) USB to single port RS232 converter 2) Compatible with USB1.1,2.0 highest speed can reach 12 Mbps 3) Supports remote wake up and power supply management 4)Supports hot plug and PnP,Need no I/O location and IRQ setting, friendly UI 5) Supports RS-232 handshake protocol, support full duplex data operating mode 6)RS-232 serial port transmission speed maximum 460.8Kbps 7)RS-232 serial portTXD,RXD offer 600W lightning strike & surge protection power oneach line.