EZ-PSA053 is an 802.3af/at splitter to power non-PoE enabled devices. - Withοut Isolation Transformer
It accepts 48v and/or 802.3af/at PoE to output fixed 5v/2.4A via the DC Jack (3.5 x 1.35mm) and 10/100 RJ45 Jack.
This way a non PoE enabled 5V device (Raspberry Pi, IP Camera) can be powered remotely via any 802.3af/at PoE Injector or PoE Switch