Key Features. Surge protection Clamping protection Maximum surge discharge Peak pulse current AC cable with earth ground Ubiquiti Po E-24-12W-G Power Over Ethernet Po E Injector is suitable for use with Ubiquiti Wireless Networking devices. This Ubiquiti Po E adapter is supplied with a power cord. Electrostatic discharge (ESD) is the leading cause for outdoor device failures. You can effectively protect against ESD damage using a grounded Ubiquiti Po E Adapter TOUGHCable TM & TOUGHCable Connectors..