Features: This hub uses industrial-grade super anti-interference chips and surge for protection and electrostatic for protection circuits Load capacity: each channel supports 32 devices;Support high baud rate Two-way communication, Plug and for play, no driver required,easy to use Good heat dissipation and stable performance Widely used in industrial systems, communication , transportation, education, finance, electricity, security, charging systems etc Specifications: Item: Industrial Isolated 1 to 16 RS485 HUB Model: TX1182 Size: approx 170x106x38mm/6.7x4.17x1.5in Transmission distance: 1200M Transmission medium: shielded wire or twisted pair Working environment: -40℃-85℃ Power supply: for DC 9-48V Package Includes: 1 PC x 1 to 16 RS485 HUB note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-3mm error due to manual measurment.