The Coral PoE Add-on Board is accessory board that adds ethernet power and connectivity to the Dev Board Micro. It simply snaps onto the Dev Board Micro with a high-density connector. Techical Specifications Ethernet Speed: 10 and 100 Mbps Max Power: 7 W continuous max power over Ethernet (shared with main board and any peripherals) Dimensions: 65.0 x 30.0 x 23.9 mm Requires the Coral Dev Board Micro for operation (sold separately).