High-performance integration: This USB to 4-channel RS485 converter uses the CH344L chip to reliable high-speed data transmission for industrial applications. The 4-channel isolated RS485 interface can be expanded through USB, which is convenient for users to expand access to multiple RS485 industrial serial port devices. Onboard integrated power isolation can provide stable isolation voltage, and no additional power supply is required for the isolation end. Onboard integrated digital isolation can be used for signal isolation, with high reliability, strong anti-interference and low power consumption. Industrial-grade metal housing, supports both wall-mounted and guide rail installation, sturdy and beautiful, easy to install. Product type: Industrial-grade isolated USB to RS485 converter Communication range: 1200bps - 460800bps Host interface: USB Device interface: RS485 Working level: 5V Interface type: USB-B interface Interface protection: 500mA self-recovery fuse, isolated output The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:Metal Package Contents: 1 * Industrial Isolated Converter Kit 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.