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SpecificationsCompatibility: USB v2.0 standardInterface: Network:USBSerial:RS-485Port: One Independent RS-485Connector: Network: USB-type A connectorSerial: Screw terminalTransmission speed: 600bps to 115.2KbpsParity bit: odd, even, noneData bit: 5, 6, 7, 8Stop bit: 1, 1.5, 2Driver Support: Windows 2000/2003/XP/Vista/7 (32bit and 64bit)Power Consumption: 1.5W @ 5VMax. Distance: 4000ft (1200m) @ 19.2KbpsCase: Blue transparent ABSOperating Temperature: -20°~+65°Operating Humidity: 20% to 95% (non-condensing)