A USB camera is a type of digital camera that connects to a computer or other devices using a USB (Universal Serial Bus) cable. These cameras are commonly used for video conferencing, streaming, and capturing images. They are often plug-and-play, meaning they can be easily set up without needing additional software. USB cameras come in various styles and resolutions, making them suitable for different purposes. Some are built into laptops, while others are standalone devices that can be mounted on a tripod or monitor. They typically offer features like autofocus, built-in microphones, and adjustable settings for improved image quality.