APC SurgeArrest Performance 11-Outlets Surge Suppressor is to prevent damage to your equipment from power surges and spikes. Its components such as MOVs and Thermal fuse ensure instantaneous reaction to lightning strikes and wiring faults. The protection of data lines (Ethernet, Coaxial and Phone lines) ensures complete protection of your equipment from surges. It also attenuates EMI/RFI line noise that can cause data errors and keyboard lockups, ensuring better performance of protected equipment.