USB to -485 Serial Port Converter E810-U41CS Without High-Speed Data Transmission: Experience reliable and fast data transmission with a 1200-6M rate, ensuring efficient communication in industrial environments Multiple Connectivity Options: Equipped with 4 serial ports, this converter facilitates multiple device connections, enhancing operational flexibility and Robust: Designed for industrial use, this converter offers high protection against environmental factors, making it ideal for challenging industrial settings USB-C Interface: Modern USB-C interface provides universal compatibility and easy connection to contemporary computing devices without photoelectric isolation USB interface: type-C Serial port interface: -485 Communication isolation: A: without RS485 rate: 1200~6Mbps Electrostatic protection level: contact 4KV, air 8KV Pulse surge: Differential mode 1KV, common mode 2KV (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: PC Flame Retardant Package Contents: 1 x 4 Serial Port Converter Only the above package content, other products are not included. Note: Light reflection 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.