Ubiquiti PoE Adapters provide a variety of features to help protect your PoE devices: Surge protection
Maximum surge discharge
Peak pulse current
AC cable with earth ground
Electrostatic 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.