MikroTik RBGPOE-CON-HP, 48V to 24V Gigabit PoE Converter, Simply plug any 48V PoE powered ethernet cable into one port, and any 8-30V capable RouterBOARD device into the other. This device is capable to provide high power output - up to 24W (up to 1A at 24V). Više informacija na linku