USB RS485 to RJ11 cable USB RS485 to RJ11 converter VCC/GND/A/B, 5v The cable offers a simple and fast way for usb to serial communication. It could connect computer or laptop usb port to support the serial communication devicesThe other side could be Mini USB/Micro USB/GPS e2Plug/pPlug or OEMThe cables with drivers for Windows XP/2000/Vista/7/Linux,etcThe cables are RoHS, CE and with lifetime warranty