Power disturbances such as surges, lightning and power grid fluctuations can have a devastating impact on the valuable electronics you rely on every day. The APC SurgeArrest P11U2 provides guaranteed protection from damaging power surges and spikes. As one of the world’s largest and most respected power protection designers and manufacturers, APC is relied upon daily for power protection and availability. SurgeArrest products offer the maximum level of protection, safety, convenience, and reliability the industry has to offer. WARNING: This product can expose you to 1 3 Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.