600W static surge and 15KV ESD protection protects devices and ensures high speed data communicationTX, RX indicators help you check communication activity, which is very helpful when troubleshooting The shielded cable supports four wires full duplex, two wires half duplex point to point, point to multi-point communication Transmission distance up to 1.2 km at at baud rate of 9600 bps (the longer distance, the lower baud rate) Terminal block is well-labeled for you to easily wire it to your device correctly!Item Features / Specifications :Color: silver and grayMaterial: PVC new and high qualitySerial Protocol: RS485 / RS422 USB 2.0 EIA/TIA RS485 and RS422 standard Chip: FTDI Max Baud Rate: 921600bps Max Distance (RS485/422 End): 984ft (300m) at 921600bps, 1968ft (600m) at 38400bps, 3937ft (1.2km) at 9600bps USB-bus powered, no external power needed.Automatic hand-shaking protocol supportedItem Length: 50cm / 1.6ftFTDI Chip supports the widest possible OS compatibility: Win 10, 8, 8.1, 7, Vista, XP, Linux and MacPackage Contents:3 x USB to Serial Converter Cord 50cm3 x RS422 RS485 Serial DB9 to Terminal Block Adapter3 x Driver CD3 x User manualOnly the above package content, other products are not included.Note: Light shooting 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.