A patch panel is a device used in networking to organize and manage multiple cables. It consists of a series of ports where cables from different sources can be connected. This allows for easy reconfiguration and troubleshooting of network connections without needing to access the main equipment directly. Patch panels are commonly used in data centers and telecommunications rooms. They help maintain a tidy setup by reducing cable clutter and making it easier to identify and manage connections. By using a patch panel, network administrators can efficiently route signals between devices like routers, switches, and servers.