No power supply designNot Require any Additional Power Supply and the Connected PDs is Fed by an Single PoE Switch or Mid-Span, Which Simplifies Installatio PoE Extender and your network cabling, only one cable from in the house to the switch and four poe cameras powered. | Extend ModeExtension of Power and Data - Up to 250 meters (820 feet). Extend mode increases the maximum transmission distance from 100 meters to 250 meters transmission distance at 10Mbps data speedon all 4 PoE ports. | IEEE802.3at/802.3af CompliantSTEAMEMO Waterproof PoE Extender, Plug and Play. 12.36 or 45. 78 Powered Support, Support IEEE802.3af & at the Power Supply, PoE Total Power Can Reach 30w (PoE Switch or PoE Injector Need to Provide IEEE802.3at (30W) Power) |