Comtrol DeviceMaster RTS 1-Port DB9. Output interface: RS-232, RS-422, RS-485, Serial interface type: RS-232/422/485, Connector(s): DB9M. Data transfer rate: 100 Mbit/s. Operating temperature range (T-T): -37 - 74 °C, Operating relative humidity range: 5 - 95 %. Colour of product: Black, Silver. Platform: PC, Connectivity technology: Wired