1, Simple power up 4 passive 10/100Mbps PoE devices by one power source application use for Access Points, IP cameras, IP phones, etc.
2, Power input for all PoE power supply, each port serial a recoverable fuse(fuse value 1.1Amp / 72V). 
3, Power input from 5.5mm x 2.1mm socket jack or pluggable terminal block, LED indication for power supply on/off status.
4, Specifications: power supply input: 12VDC - 60VDC, maximum current 5Amp;  LAN Input: RJ45 1 / 2 / 3 / 6 pins(data), 4 / 5 / 7 / 8 pins not connected; PoE Output: RJ45 1 / 2 / 3 / 6 pins(data). 4 / 5 pins power +, 7 / 8 pins power -; Data Rate: 10 / 100Mbps; PoE Power Output Maximum Current(per channel): 720mA; Power socket jack polarity: middle pin is positive, diameter 2.1mm.
5, The item not include power adapter.

Specifications: 
Power Input: 12VDC - 60VDC, maximum current 5Amp, from socket jack or pluggable terminal block.
LAN Input: RJ45 1 / 2 / 3 / 6 pins(data), 4 / 5 / 7 / 8 pins not connected.
PoE Output: RJ45 1 / 2 / 3 / 6 pins(data). 4 / 5 pins power +, 7 / 8 pins power -.
Data Rate: 10 / 100Mbps.
PoE Power Output Maximum Current(per channel): 720mA.
Power socket jack polarity: middle pin is positive, diameter 2.1mm.
Pluggable Terminal Blocks: Pitch 5.0mm/0.197", Wire range 28AWG ~ 12AWG / 2.5mm square, Strip length 7mm. Screws - M2.5,steel,Cr3+ Zn plated. Pin header and Cage - Brass.