A USB receiver is a small device that connects wirelessly to a computer or other electronic devices. It typically plugs into a USB port and allows communication with peripherals like keyboards, mice, and game controllers. This enables users to enjoy a clutter-free workspace without the need for cables. These receivers often use radio frequency (RF) technology to transmit data between the device and the connected peripherals. Many wireless keyboards and mice come with their own USB receivers, making it easy to set up and use without complicated installations.