Model: UT-890A Name: USB to 485/422 Converter Complies with USB 1.1, 1.0, 2.0 standards and EIA 485, 422 standards USB signals: VCC, DATA+, DATA-, GND, FG 485 signals: T/R+, T/R-, GND 422 signals: T/R+, T/R-, RXD+, RXD-, GND Working mode: Asynchronous, point-to-point or multipoint, 2-wire half-duplex, 4-wire full-duplex Direction control: Automatic data flow direction control technology for automatic identification and transmission direction management Baud rate: 300–921.6 Kbps, supports automatic serial port signal rate detection Load capacity: Supports point-to-multipoint connection; each converter can connect up to 32 RS-422 or RS-485 interface devices Transmission distance: Up to 1200 meters at 485/422 end (at 9600 bps), up to 5 meters at USB port Interface protection: Surge protection, ±15KV static protection Interface type: USB Type-A male connector and DB9 male connector Signal indication: Two signal indicators (TX, RXD), one power indicator Transmission medium: Twisted pair or shielded cable Dimensions: 155 x 55 mm x 36 mm x 16 mm (L x W x H) Operating environment: -40°C to 85°C, relative humidity: 5% to 95% Compatible with: Windows 8/10/2000/2003/2008/2012/XP/Vista/7/8/8.1/10/CE, Linux, etc. Color: As shown in picture Material: Plastic Package Contents: 1 x Serial Cable Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowed: +/- 1-3 cm.