The LevelOne ESP-2400 is an in-line 24 ports RJ45 surge protector rack to support PoE standard IEEE 802.3at/af devices connected. It has a total of 48 RJ45 connectors and simply installs in-line on each RJ45 Cat5e/6 cable. The in-line installation is a very easy and straight forward. Unit protects up to 24 different Ethernet devices like switches, routers, laptops/PCs, etc from damaging surges caused by lightning or static electricity up to 6KV. Moreover, each port is isolated from others and will not fail the entire rack if some of ports are damaged which its LED is off.