performance main control chip provides stable operation and smooth switching with broad compatibility, improving work efficiency. Metal construction offers durability for daily use without compromising performance. Suitable for a variety of devices; two computers can share four USB devices to improve office efficiency. The USB 3.0 interface enables two computers to share four USB devices, including printers, making it easier to manage printing needs in home and office environments. Use scenarios Small office or shared workspace: two computers need access to the same four USB devices, such as printers, external drives, keyboards, or mice. This setup reduces cable clutter and eliminates the need to physically swap devices between PCs. Home office: a desktop PC and a laptop share a printer and other USB peripherals through a single hub, simplifying connections and workflow. Training room or IT lab: two computers require concurrent access to multiple USB devices for demonstrations, testing, or troubleshooting without reconnecting devices repeatedly.