Finding the best PoE Injectors in 2021

Jan 2, 2019PoE

PoE (Power Over Ethernet) delivers data and power over a single Cat5e/Cat6 Ethernet cable. This improves network’s flexibility and scalability by remotely powering PoE devices at locations where no power outlet is available. PoE injectors are one of the easiest ways to start using Power Over Ethernet in your network. It is ideal for enhancing already existing cabling with power supply for PoE devices like surveillance cameras.

This guide is aimed at helping you to understand what PoE injector is, the difference between active and passive injector and in-depth review of the best PoE injectors in 2019.

We have tested and reviewed over ten PoE injectors, to give you the best PoE injector. Like many other devices, power injectors vary by tech specs, pros, cons and ultimately by price. However, some are better value for money than others. Based on detailed testing, the flexibility, reliability and ease of use, of TP-LINK TL-PoE150S allows to declare it as the best PoE injector for majority of users. With a 15.4W power supply, TP-LINK TL-PoE150S PoE injector is ideal for use with IP cameras and access points. The device has two Gigabit Ethernet ports for lightning-fast wired speed. On top of all, the device is quite affordable that sets it apart from the crowd.

Although there are many options out there that are relatively affordable, this injector tops them all with its unique features and all-in-one design.TRENDnet TPE-115GI PoE+ Injector has a similar rating as TP-Link, but deliver a power supply of 30W and ideal to power PoE+ devices.BV-Tech POE-I100G-LITE is the best gigabit injectors when you need extra bandwidth. And finally TRENDnet TPE-113GI Power Injector has the best balance between price and value when you need 2 port injector.

Best Power Over Ethernet Injectors

Best PoE injector: TP-LINK TL-PoE150S

Best PoE Injector
  • PoE compliant
  • upt to 15.4W power
  • 2 x 10/100/1000M Ethernet ports
  • Compact and lightweight; easy to setup
  • Need to reset monthly
  • why this model?

Best PoE+ injector : TRENDnet TPE-115GI

Best PoE+ Injector
  • PoE and PoE+ compliant
  • Supplies PoE+ (30W) and PoE (15.4W) power
  • 1 x Gigabit Data in port and 1 x Gigabit Data & Power out port
  • Simple and easy to use; fast transfers speed
  • Heats up
  • why this model?

Gigabit injector: BV-Tech POE-I100G-LITE

Best PoE Gigabit Injector
  • PoE and PoE+ backwards-compatible
  • up to 30W power
  • 1 x PoE Port and 1 x Uplink Port at 10/100/1000Mbps each
  • Compact and well manufactured
  • Short cable included
  • why this model?

But, let’s start with what exactly a PoE Injector is.

What is a PoE (Power Over Ethernet) Injector?

PoE injector (power injector) is a device that adds electrical power to an Ethernet cable for PoE (Power Over Ethernet) enabled equipment. The main benefit of PoE is to use a single cable for both power and network.

PoE Injectors also referred to as midspan as they usually used with the existing non-PoE network to inject in certain cables with PoE. The devices can support up to Gigabit speeds while powering complaint devices over one single cable. Power injector is perfect for low power devices that you want to set up in locations with no power outlet like IP cameras or Access points.

Now, when it comes to PoE power supply devices, many get confused about whether to choose a PoE injector or PoE switch.

What’s the difference between PoE Switch and Injector?

Well, we’ll make a comparison and help you choose between the two.

Power over Ethernet switch is a network switch that has PoE injection built-in. When connected with several network devices, a PoE switch can support power and data transmission over a single Ethernet cable at the same time. It simplifies the cabling process and reduces network costs. PoE switch offers flexibility and reliability, which makes it a better choice for connecting wireless APs, VoIP phones and IP Camera. The main benefit of PoE Switch is value for money when you need to power more than a couple of PoE devices. 

Injector performs a similar function, but in some cases it is more practical to inject PoE only in for a single devices and not every Ethernet cable in your household. Injector is ideal when you need to power only one or two PoE devices.  

Most Common questions about PoE injectors

What is the difference between PoE injector and PoE+ injector?

  • The main difference between the PoE Injector and PoE+ Injector is the maximum amount of power provided over each standard. PoE (802.3af) can deliver a power of 15.4W over Cat5 cables whereas PoE+ (802.3at) can deliver a power of 30W over Cat5 cables.  But, the power available to the devices will be 25.5W with PoE+ injector.
  • Another major difference between the two is the IEEE standards. PoE is 802.3af whereas PoE+ is 802.3at. In simple words, if you’re looking for an injector specifically for your phone or one device, you can just consider PoE as the power required is less and it can be managed with power injector. However, if you’re looking to create a more powerful network with many discrete devices and don’t want any limitations, then PoE+ will be the right choice.

What’s the difference between passive PoE injector and active PoE injector?

  • Active PoE refers to any PoE that negotiates the correct voltage between the PoE powered device and the switch. However, passive PoE does no such negotiation and always sends electric current over the Ethernet cable at a specific voltage regardless of the device it’s going to.
  • Also, if your device uses 802.3at or 802.3af, it is considered to use active PoE. It means the PoE device will check the power coming in and if by any chance, it doesn’t meet the device requirements it won’t power up. Active PoE does a hand shake between the receiving and sending PoE devices and won’t power up unless the receiving device provides the proper acknowledgement.
  • On the other hand, passive PoE generally refers to a device using PoE to power that is not 802.3at/af. It includes items like radio antennas or cameras as they run on 18-48V DC PoE. As passive PoE doesn’t do a hand shake, it’s essential to know the PoE voltage requirement of your device before plugging and powering it up.     

How to use power injector?

Using PoE injectors is very simple. As with any other PoE enabled network the main thing you need to make sure is that you will not use PoE with non-PoE devices. PoE splitter is the device that will help you to separate power from PoE enabled ethernet cable. 

  • For PoE enabled devices: On the input side – Connect the PoE injector to its power adapter and a data source i.e. a switch or a router. On the output side – Connect the PoE injector to a PD like VoIP phone, an access point, or a PoE camera.
  • For non-PoE devices: On the output side – Connect the injector to a splitter. Then, connect it to a non-PoE device. On the input side – Connect the PoE injector to a data source and its power adapter.

 How to use PoE injector for the camera?

  1. Firstly, make sure all the equipment including PoE injector, IP camera and management of camera is working.
  2. Then, connect the Ethernet cable to the PoE injector’s data + power port and into the IP camera’s PoE port.
  3. Next, mount your IP camera in place and make sure the light is adequate to capture a clear image.
  4. You need to connect a second Ethernet cable from injector’s data port into a switch.
  5. Lastly, plug the injector power cord into a local AC electrical outlet.

Best PoE injector: TP-LINK TL-PoE150S

Amazon Reviews:

  • Complies with IEEE 802.3af standard
  • Support 100-240V voltage
  • Delivers a power supply of 15.4W
  • Two 10/100/1000M Ethernet port
  • Network distance upto 100 meters
  • Advanced auto-sensing algorithm
  • Transmits electrical power and data in one single cable
  • Supports plug-and-play for the devices with no configuration required
  • Manufacturer Page
  • Manuals


  • Easy to set up: Just simply plug in the AC adapter and connect an Ethernet cable to your network. Then, connect the other end to the phone via Ethernet cable.
  • The device is quite inexpensive.
  • The device is compact and lightweight
  • Works well with both 110V and 220V


  • The glossy coating on the injector scratches easily.
  • Sometimes fails to reestablish a connection once the power the goes out
  • Need to reset the power about once a month
  • Not electrically isolated

TP-LINK TL-PoE150S PoE Injector fully complies with PoE (IEEE 802.3af standard). Also, it can work with all IEEE 802.3af compliant powered devices and PoE Splitters. These features allow you to expand your network to locations with no power outlet. Also, the device is simple and effective with flawless operation.

This device is the best balance of quality and price and has two 10/100/1000Mb Ethernet ports. Furthermore, the device requires no additional setup and ready to work right after being plugged in. This PoE injector is compatible with both 110V and 220V, which makes it a good portable power source.

This device comes pre-configured and offers 1000 Mbps uploading/downloading speeds. And, on top of that, it is quite budget-friendly that makes it viable for every user.

For its design, TP-LINK TL-PoE150S PoE Injector is one of the smallest and lightest devices. It can literally fit easily into your hand, yet its sturdy design won’t break if it falls. Apart from its robust design, this device provides a gigabit data transfer channel and supports all modern standards expect for 802.3at.

Lastly, it’s a good device for indoor and desktop use, like VoIP phones, indoor access points and indoor IP camera. So, if you want an affordable and small PoE injector with high-speed transferring, TP-LINK TL-PoE150S should be your pick.

Most commonly asked questions

What’s the difference between injector and splitter?

An injector takes DC + Ethernet and turns the signal into PoE. However, a Splitter takes PoE and outputs Ethernet + DC Power.

Is there a need of PoE injector for each IP camera that wants to work with power and data?  

Yes. One can also get PoE switch, but they are quite expensive.

Installation and Use

You can use TP-LINK TL-PoE150S PoE Injector with Powered Devices or PoE Splitter to expand your network in a location where is no power outlet, where you want to fix devices such as IP Cameras, APs, or IP Phones etc. To connect the PoE injector correctly, follow the steps mentioned below:

  1. Connect the port of Ethernet devices such as a hub, switch or router to the LAN IN port using a CAT5 UTP cable.
  2. Connect the power adapter to a power socket with the given power cable. Next, connect the other end of the power adaptor to the DC 48V port of the injector.
  3. Lastly, you need to connect the POWER + DATA OUT port of the injector to a Powered Device or a PoE Splitter with CAT 5 UTP cable.

Now, the device is ready to work with power and data.

Customer Reviews

“this is my first poe injector i plugged it into ac and then into my lan switch then plugged 100′ ethernet into an ip camera and works just like that” – Janee Tabaco

“Vague directions. Couldn’t get it to power a reolink IP cam. Correct standard per reo… Lights on the unit wouldn’t change to green regardless what I tried. Never provided Power.” – Brent


Best PoE+ Injector: TRENDnet TPE-115GI

Amazon Reviews:

  • IEEE 802.3af and IEEE 802.3at compliant
  • Supports 100~240V AC
  • Supplies PoE+ (30W) and PoE (15.4W) power
  • Network distance upto 100 meters
  • 1 data-in LAN port and 1 PWR + data out LAN Port
  • Converts a non-PoE Gigabit port to a PoE+ or PoE Gigabit port
  • Short circuit protection
  • LED indicators
  • Integrated power supply


  • Easy wall mounting: The body of this injector has special loops for easy ceiling and wall mounting.
  • Maintains high network bandwidth and speed
  • Simple to use
  • Works for the majority of PoE Cameras


  • Heats a lot during when in use
  • Some people complain about the loud unbalanced fan
  • Sometimes doesn’t power a PoE+ device
  • Some users complain about the connection dropping


This cutting-edge model is capable of operating at 30W and provides ultra-high gigabit speeds. So, if you’re looking for a device that ensures quick and lossless data transfers, this is certainly for you.

The model offers up to 1000 Mbps uploading and downloading speed that makes it a better option than most of the competitors. Also, this PoE injector uses the current IEEE standards. It makes it compatible with most cameras and other gadgets.

The body is made up of lightweight plastic and has side loops that make it easier to mount to walls and ceiling. It also makes the process of routing cables from the device to the cameras easier.

Furthermore, the device is simple & easy to set up. It comes with short circuit protection and integrated power supply that will keep the signal stable at every time. The gigabit speed makes sure that the data is transferred as fast as possible. The only drawback of this is device it heats up on usage.

Best Gigabit PoE Injector: BV-Tech POE-I100G-LITE

Amazon Reviews:

  • Complaint to IEEE 802.3at
  • Up to 30W of power over Ethernet
  • 1 PoE port and 1 uplink port at 10/100/1000 Mbps each
  • Network distance upto 100 meters
  • Built-in power supply for compact design
  • Power detection for non-PoE devices and low-power devices
  • Manufacturer Page


  • Special grooves on the side to connect multiple injectors, saving you space
  • Easy to setting up
  • Consistent power supply with internal switching power supply


  • Short power cord
  • Some reports of sudden power supply breaks


BV-Tech Single Gigabit Port Power over Ethernet Plus PoE+ Injector is perfect for IT specialists as they can combine various pieces to create one big PoE row with a stable connection. This device can be operated for days without heating up that makes it a reliable pick for use with always-online devices. The device has a special groove on the side that lets you connect an unlimited number of injectors to create a row of ports and power multiple devices at once.

However, the power cord of this device is quite short, so it restricts the placement options. This injector has its own power supply but to increase the efficiency; you need to keep the injector plugged in.Although there are a few complaints about the design and ease of use of this injector, the setup of this device doesn’t take long.

So, if you like your system clean with all the cables routed efficiently and carefully, you can try this injector.

Alternative Best PoE Injector: TRENDnet TPE-113GI – 2 port power injector

Amazon Reviews:

  • IEEE 802.3ab Gigabit and 802.3af PoE compliant
  • Support 100 – 240V AC
  • Supplies a power of 15.4W
  • 1 10/100/1000 Mbps auto-MDIX data-in port
  • 1 10/100/1000 Mbps PoE auto-MDIX data-out port
  • delivers a Power over Ethernet signal for distances of up to 100 meters
  • Power port and LED indicator
  • Manufacturer Page


  • Works smooth and flawlessly
  • Quite simple and easy to use
  • Wall mountable design accommodates most installation scenarios


  • Some buyers complain about signal dropping issues
  • Sometimes injector gives up and resets itself

Our opinion

If you want to save money on installation and equipment costs, this TRENDnet PoE injector would be a good choice. The effectiveness of the device is the main reason why it’s better than others.

This device Splits a gigabit PoE signal into separate power and gigabit data sources. Also, its auto-sensing technology delivers 15.4W to 802.3af PoE devices. You should consider this device if you want a power injector that delivers high availability and scalability.

Furthermore, the device works flawlessly and smoothly and provides plenty of power for single device. The device is very simple and easy to use as well.

Last update on 2022-05-22 / Affiliate links / Images from Amazon Product Advertising API