Waveshare 23929 USB HUB, Extending 4 X USB 3.2 Ports, Switchable Dual Hosts, Multi Protections 1. 4x extended USB interface, can switch between two inputs, two hosts share USB devices 2. Industrial-grade HUB chip, using MTT technology, 4-way concurrent USB connection is stable and smooth 3. ESD protection for each USB port to prevent power surge damage and data loss 4. Overvoltage protection, effectively preventing other high-voltage power input from damaging connected equipment 5. Multiple protection circuits: overvoltage, overcurrent, short circuit, overtemperature, reverse current, undervoltage lockout, 8KV ESD protection, filter protection, etc. 6. Industrial-grade metal shell, durable, with mounting holes, easy to install 7. Standard Hi-Speed: USB 3.2 Gen 1 8. Data rate: up to 5Gbps 9. USB output: 5V@Imax:1.2A, USB-A connector 10. USB HUB output: 5V, switchable dual USB-A ports (independent power supply, no cross power supply) 11. DC power supply terminal 7~36V (additional power supply is required when this HUB is connected to high-power equipment) 12. Operating system: support Mac OS (8.6 or above), Linux (2.4.20 or above), Windows 11 10 8.1 8 7 XP 13. Share the USB device for two hosts, switch the active host at any time by hand-held switch, easily control two hosts and mouse through the same keyboard, no longer have two sets of keyboards and mice on the desktop, keep your working environment tidy 14. Multiple protections, safer, overvoltage, overcurrent, short circuit, overtemperature, reverse current, undervoltage lockout, 8KV ESD protection, filter protection 15. Dimensions: 86.2x65x27.2 mm