Compatibility: EIA/TIA RS232C standard and RS485/RS422 standardInterface RS232 side: DB9 female connectorInterface RS485/RS422 side: DB9 male connector with optional (included) terminal boardTransmission rate: 300 to 115,200bpsTransmission distance: RS422 maximum 1200m, RS232 side maximum 5mWorking modes: asynchronous, duplex and differential transmissionWorking environment: 0 to 70 CelsiusRelative humidity 5 to 95%Colour:Photo ColorMaterial:ABSSize:95 x 33 x 17mmPackage Contents:1 x RS422 ConverterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.