Ensure that your electronic equipment will remain protected and undamaged during a power surge with the APC P1T Essential SurgeArrest with 6 outlets. 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.