USB Hub

A USB hub is a device that expands a single USB port into multiple ports, allowing several USB devices to connect to a computer simultaneously. It comes in various sizes and configurations, typically offering 4 to 10 ports. Hubs can be powered or unpowered, with powered hubs providing additional electricity for high-demand devices. They support different USB standards, including USB 2.0, 3.0, and 3.1, affecting data transfer speeds. Some hubs include extra features like SD card readers or charging ports. They are commonly used for keyboards, mice, printers, storage devices, and smartphones. Compact designs make them portable for travel or desk use. USB hubs improve convenience and organization by reducing cable clutter. They are essential for devices with limited USB ports.