Ubiquiti PoE Adapters provide a variety of features to help protect your PoE devices: Surge protection Clamping protection Maximum surge discharge Peak pulse current AC cable with earth ground POE-24-7W-G-WH Dimensions 72 x 45 x 33 mm (2.84 x 1.75 x 1.33") Weight 72.1g (2.54 oz)