The DLP-C5 is designed for use on high speed Cat 5e networks. The DLP-C5 is perfect for use on 10/100BASE-T protocols or facilities using 10BASE-T but have a Cat 5 infrastructure for future upgrades to 100BASE-T (100 megabits per second) speed. Lowcost and easy to install, the DLP-C5 prevents equipment damage due to nearby lightning strikes and AC power surges which cause differences in ground potential. These events can easily wipe out unprotected ports in microseconds. Units install in minutes.