Same voltage to all ports, share available power equally 2.1mm x 5.5mm for DC plug LED power light Works with any ethernet switch or router Use any power supply to 48 volts Plastic outside box Specifications: color: Black Material: Plastic Size: 10x4.7x3.1cm/3.94x1.85x1.22in (.) Category Pins: Pins 1/2 & 3/6 for data Pins 4/5 & 7/8 for power Data rate: 10/100 Mbps /EIA 568B-2 Connector: RJ-45 Input Voltage:9V-48V Current Output:0.5-3A Operating Temperature:0°C~50°C Storage Temperature:-40°C~70°C Operating Humidity:10%~80%RH Package Contents: 2 x POE Power Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Power VOIP phones, IP Cameras, WiFi Access Points, and more Features: 4 port Power Injector module 4 LAN ports, 4 LAN+Power ports, shield and high quality.