Mikrotik RBGPOE-CON-HP
48v to 24v gigabit poe átalakító

This device allows to use any 48V PoE source (including passive PoE, Telecom PoE, 802.3af and 802.3at) to power RouterBOARD devices.
Simply connect any Ethernet cable powered by 48V PoE to one port, and any RouterBOARD device supporting 8-30V to another port. This device is able to provide high output power up to 24W (up to 1A at 24V).

The device is a robust construction with high quality components and an integrated heat sink construction. The housing also has mounting holes so that it can be attached to a wall . Shielded Ethernet pins are located inside the Ethernet connectors, so you can use shielded Ethernet to ground either on the converter itself or on devices at both ends. Supports 10/100/1000Mbps Ethernet .