features: 1. On board 4-way USB expansion port, two inputs can be switched, and two hosts share USB external devices 2. Industrial grade HUB chip and MTT technology are used to make 4-way USB more stable and smooth 3. Each USB port is equipped with ESD protection, and the device connection is protected from surge damage and data loss 4. On board overvoltage protection circuit can effectively prevent equipment damage caused by other high-voltage power supply On board multiple protection circuits: overvoltage protection, overcurrent and short-circuit protection, overtemperature protection, reverse current protection, undervoltage locking, 8KV ESD protection, filtering protection, etc Industrial grade metal shell, solid and , with reserved screw holes for easy installation and fixation Specifications: Interface standard: high-speed USB 3.2 Communication rate: up to 5Gbps in USB output: 5V@Imax : 1.2A, USB-A interface USB HUB input: 5V, two USB-A interfaces ( power supply, no series connection) External power supply: DC power supply terminal 7~36V (additional power supply shall be connected when using high-power equipment) Operating environment: - 40 ℃~85 ℃ : compatible: OS (version 8.6 or above), Linux ( version 2.4.20 or above), 11/10/8.1/8/7/XP Product size: 86.2 x 65 x 27.2mm Color: black Material: metal Package Contents: 2 x USB3.2-Gen1-HUB-2IN-4OUT 4 x Double male USB 3.0 data cable 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.