Converter to connect serial devices to a USB port on your PC Mode: Asynchronous serial communication Compatible with USB 2.0, USB 1.1, USB 1.0 Isolation 3000 VDC (optical) Connectors: 5-pin terminal block, 1x Mini USB type B Data transfer rate of up to 115 Kbit/s Terminal resistance and Echo mode DIP switches for terminal settings Signals: TX+, TX-, RX+, RX-, SGND Protection: 15 KV ESD protection for all signals, RS-422/485 signals surge protection Status LEDs For DIN rail mounting Power supply over Mini USB type B connector (54 mA) Windows 98SE/ME/2000/Server 2003/XP/Server 2008/XP/Vista/7