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The device accepts power from the power jack or from the first Ethernet port (Passive PoE). The power consumption for RB951G-2HnD under maximum load can reach 7 W, RB951Ui-2nD 5 W.
- direct-input power jack (5.5 mm outside and 2 mm inside, female, pin positive plug) accepts 98-30 V DC.
- The first Ethernet port accepts passive Power over Ethernet accepts 98-30 V DC.
On the RB951Ui model, the Ether5 port supports PoE output for powering other RouterBOARD devices. The port has an auto-detection feature, so you can connect Laptops and other non-PoE devices without damaging them. The PoE on Ether5 outputs approximately 2V below input voltage and supports up to 0.58A (So provided 24V PSU will provide 22V/0.58 A output to the Ether5 PoE port).
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