1、4 or 8 enough channels meet the need that you are lacking of the ports. 2、POE power supply module is compatible with all IEEE802.3af network devices, but it does not have auto-detection function. 3、LED power light allows you to clearly know the working status. 4、Same voltage to all ports, share available power equally. 5、High stability and outstanding performance. Description: This POE injector ethernet adapter is a good solution for you to save you trouble in power cabling and costs by simply connecting your POE or non-POE device with an Ethernet cable. This POE power supply module is compatible with all IEEE802.3af network devices, but it does not have auto-detection function. As long as they are connected, they can directly supply power to network devices. Features: 4 or 8 enough channels  meet the need that you are lacking of the ports. POE power supply module is compatible with all IEEE802.3af network devices, but it does not have auto-detection function. LED power light allows you to clearly know the working status. Same voltage to all ports, share available power equally. High stability and outstanding performance. Specifications: POE Port: Connect Bridge AP CPE device WAN interface (use with POE separation line) LAN port: Connect to a router Switch or directly connect to the host computer network interface DC socket: outside -5.5mm, inside +2.1mm POE port: 4/5 pin (+), 7/8(-) LAN port = 1 2 3 6 pin for data Note: The green terminal and the DC power supply voltage are connected Line connection equipment to do line standards: Through 568B; (positive line, direct line, standard 568B: both ends of the line sequence, from left to right line sequence is: white and orange, Orange, White and green, Blue, White and blue, Green, White and brown, Brown) Rated voltage (Nominal Voltage): 12-48V DC Input Current: 0-10A Input data transmission: 1/2/3/6 pin Transmission rate: 10/100Mbps Output Voltage: 12-48V DC Output data transmission: 1 /2/3/6 pin Output transmission rate: 10/100Mbps Output transmission power: 4/5 positive electrode 7/8 negative electrode Port quantity: 4, 8 (optional) Package List: 1 * 4/8 Channel POE Power Supply Module POE Injector Ethernet Adapter (Based on your choice)