1 RJ45 Ethernet Data Input Port + 1 RJ45 Power over Ethernet Output Port (Data +Power). 10/100/1000Mbps transmission rate is supported. The 30W PoE+ injector supports 12~48V DC input and boost to 48V PoE output. It will solve the problem that you only have 12V or 24V centralized power supply. This product is made of industrial grade components and aluminum housing, and can operate at -40 °C to 80 °C(-40°F to 176°F). Small size, easy to install, the size of the power supply is about 9.5cm×7cm×3.6cm, installation only needs a small space. Supports 35mm DIN-Rail installation.Two year warranty is supported.