USB Hub, that is, a device that can expand one USB interface into multiple (usually 4), and can use these interfaces at the same time. Hub, also known as a hub, uses topology to connect multiple USB interface devices. Aiersai USBHUB is extended based on the 4 USB ports provided by the GL850G chip. GL850G has product features such as low power consumption, low temperature and reduced number of pins, so it is favored by developers. USB HUB can be connected to computer desk lamp, computer fan, MP3, U disk, voice recorder, digital camera, etc. Adopt the second generation USB HUB controller It is directly connected to the computer, no external power supply is required, and it is simple and easy to use. The computer automatically recognizes and installs, and no driver is required. Working voltage: 6.3V-50V USB port: When the 4 USB expansion ports can work at the same time, the output current of each port can reach up to 500mA when working alone, which can be used for USB lighting and related USB devices. Driver: Driver-free, the computer automatically recognizes and installs, plug and play. Protection: Built-in current overload short circuit protection device. Speed: Support USB 2.0, to 480Mbps, backward compatible with USB 1.1. Support system: Win 95/98/Me/2000/XP, Linux 2.4andMaCos8.5 or above. Color: As Shown Material: PCB Package Contents: 1 * USB Module 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.