Ubiquiti ESD Surge/Clamping Protection 48VDC 802 802.3af Supported PoE Injector Ubiquiti 802.3af Supported PoE InjectorUbiquiti 802.3af Supported PoE InjectorUbiquiti PoE Adapters provide a variety of features to help protect your PoE devices:Surge protectionClamping protectionMaximum surge dischargePeak pulse current48VDC @ 0.32AElectrostatic discharge (ESD) is the leading cause for outdoor device failures. You can effectively protect against ESD damage using a grounded Ubiquiti PoE Adapter, TOUGHCableTM, and TOUGHCable Connectors.