USB to RS232 Converter 1.Small volume, easy installation 2.No power supply needed, plug and play USB232 USB smart ... signal rate CommunicationStandardAccord USB1.1 or 2.0, EIA RS232 standardUSB signalVCC, DATA+, DATA-, GND, FGRS-232 ... , automatic sense serial signal rateTransmissionRS232 side 15M, USB side less than 5MProtection600W sugre protection, 15KV static ... -04-24 04:56:33 USB to RS232 Converter