Gigabit PoE+ Injector Adapter 48V Power Over Ethernet Plus - 10/100/1000Mbps, IEEE 802.3af/at Compliant -Delivers 15.4W (PoE) or 30W (PoE+) Power Over | Up to 100 M (328 ft) Range, by ThePoEstore

Please refer to the seller "ThePoEstore".Otherwise you may buy inferior products
Use PoE injector with PD to expand your network to where there are no power lines or outlets,where you wish to fix devices such as APs,IP camera or IP Phone,etc.
The PoE injector is a single port poe injector offer a compact and cost effective,it can convert standard 100-240V ac power into low-voltage.DC that runs over existing LAN cable to power up IEEE 802.3af/at compliant network accessories. Remote powering of wireless LAN(WAN) access points,IP security cameras,VoIP telephone and other low port density installations.

Features:
Up to 15.4W/30W of Power on 2-pairs
Supports 10/100/1000 Base-T applications
Led indicators power input and poe output
Internal ac/dc converter no need for external power brick
easy plug and play installation
Muti-protection

Specification:
Pass Through Data Rates: 10/100/1000Mbps
Out Power Voltage: 54VDC
User Port Power: 30W max
AC Input Voltage: 100-240VAC
Ac Input Current: 0.5A 100-240VAC
AC Frequency: 50 to 60 HZ
Dimensions: 121x50x36 mm/4.76x1.97x1.42 in
System Indicator: AC power
Connectors: shielded RJ-45,EIA 568A and 568B
Operating Ambient Temperature: -0 to 40 ℃
Storage Temperature: -40 to 60 ℃

Installation Steps
1.Use a CAT5 UTP cable to connect port of Ethernet devices to the DATA IN port
2.Connect AC cable with Injector and Socket
3.Connect the PoE OUT port to a PD with CAT5 UTP cable