This 48 Ports Sliding LIU is a layer 1 device that provides the basic physical connectivity for your network. It includes 48 RJ45 ports, which are arranged in a sliding panel to allow for easy access when you need to plug in or unplug cables. It is designed for use in high-density installations, such as in data centers, and provides PoE support for up to 48 ports. The LIU supports auto-detection of 10/100/1000 Mbps, as well as full duplex and Auto MDI/MDI-X functions. It also features an LED status indicator that lets you know when the connection is active, and provides an easy way to troubleshoot potential problems.