THE DUOLINE SERIES: Multitector protects fast ethemet LAN equipment such as hubs, switches and network interface cards from induced lightning and electrostatic discharge. Supports the compliment of 100Base-T configurations: 100Base-Tx, 100Base-T4 and 100Base-VG. Backwards compatible to 10Base-T. The unit plugs into the wall socket and the equipment plugs directly into the unit. Clearline protects your equipment against lightning and surges without additional earthing. The protection is capable ofblocking severe lightning and power surges. The unit incorporates a fast overload device which will be activated in extreme conditions. Clearline's unique built-in thermal protection technology has been included to eliminate fire hazards.   Plug-and-Play concept High surge capability Fire hazard protection All 4 data lines protected (RJ45)