Ensure that your electronic equipment will remain protected during a power surge with the APC P6N SurgeArrest with 6 outlets and Ethernet Protection. Changes in voltage cause lockups and loss of work. If the surge components are damaged due to power spike or over voltage, excess power cannot reach your equipment. In addition, APC's SurgeArrest is fail safe, which means that once the circuit of an APC SurgeArrest has been compromised the unit disconnects equipment from the power supply ensuring that no damaging surges reach your equipment.