What Is a PoE Security Camera?

A PoE security camera is a network camera that receives power through its Ethernet connection. For a doorbell example, see the Reolink PoE video doorbell review.

That same cable carries its video and other network data to a recorder or network.

This differs from a Wi-Fi camera that sends video wirelessly and usually needs a separate power source. With PoE, the camera still has a cable, but it doesn't need a separate power cable when connected to compatible PoE equipment.

For a broader comparison of camera types and features, start with our guide to which home security camera.

How does PoE work in security cameras?

A PoE source sends power and network data through a compatible Ethernet cable to the camera. The camera sends its video data back over that connection.

The PoE source can be a switch, an injector, or an NVR with PoE ports. An injector adds power to an Ethernet connection, while a PoE switch can connect multiple devices.

A PoE NVR may combine camera connections with recording and storage.

The camera and power source must support compatible PoE connections. Check both devices' requirements and the cable type and maximum run length in their instructions before routing cable.

What is a PoE security camera system?

A PoE security camera system connects one or more PoE cameras to a compatible recorder or network device. If you're considering a DVR rather than an NVR, see PoE cameras with a DVR.

A system with an NVR can manage camera connections and record footage in one place.

Some cameras can also save footage to supported local storage or a network device. Storage options and compatibility vary, so check what the camera and recorder support before choosing a system.

What equipment do you need for a PoE camera installation?

Plan for a PoE camera, Ethernet cable, and compatible PoE source. Add an NVR or supported storage if you want to record footage.

Before installation, decide where the cameras will go and where the cables will run. Measure each route, including the path through walls or ceilings, and leave room for bends and connections.

Keep cable runs within the limits specified by the camera and PoE equipment.

You may also need cable clips or other mounting supplies suited to the surface. Check the installation instructions for the camera's mounting method and any weatherproofing steps.

A single camera can connect to a suitable injector or switch, depending on the camera's requirements. A multi-camera setup often uses a PoE switch or NVR with PoE ports, but confirm how many cameras the equipment supports.

Does PoE need a router or internet connection?

A PoE camera needs a compatible PoE connection, but it doesn't always need internet to record locally. Remote viewing and app alerts usually require a network connection to the router and internet.

The camera's Ethernet connection to a PoE source is separate from the internet service. Local recording may continue if the internet goes down, provided the camera remains connected to its recorder or local storage and the system supports that setup.

For remote access, check whether the camera or NVR needs a router connection and how the app is configured. Don't assume a camera can send alerts or stream to your phone when it has no internet access.

What are the benefits and limits of PoE cameras?

PoE can reduce the number of cables at each camera and provide a wired network connection. It also means you need to plan cable routes and use compatible equipment.

A wired connection can suit fixed cameras where you can run Ethernet from the camera to its PoE source. That may be useful for outdoor locations or spots far from an outlet, as long as the cable route and equipment meet the installation requirements.

The main tradeoff is installation work. Routing Ethernet through a home can take more planning than placing a wireless camera, and the camera still needs a cable connection.

If you want to compare models, see our guide to best PoE security cameras.

PoE cameras also depend on the PoE source for power. If that switch, injector, or NVR loses power, cameras connected to it may stop operating unless the equipment has backup power.

How do you choose a PoE setup?

Choose the setup around your camera count, recording needs, cable routes, and remote-viewing plans. Confirm that each camera works with the switch, injector, or NVR you plan to use.

For one camera, check whether a PoE injector or switch is the simplest fit and how you will store video. For several cameras, an NVR with suitable PoE ports can make it easier to connect cameras and record in one place.

Think through these questions before buying:

How many cameras do you need now, and might you add more?
Will you record continuously, save motion events, or use another supported mode?
Does the recorder have enough camera ports and storage for your setup?
Can you route Ethernet to every camera location?
Do you need remote access when away from home?

For cameras exposed to weather, compare our guide to the best PoE outdoor security camera system. If image detail matters, see best PoE security camera system 4K.

Which PoE system suits a home?

A home PoE system should fit the number of areas you want to cover and give you a practical route to record and review footage. The right choice depends on the number of cameras, storage needs, and whether you want one recorder to manage the system.

The REOLINK 8CH 5MP PoE Security Camera System includes 4 cameras and an NVR with a preinstalled 2TB hard drive. Each camera connects to the NVR with one network cable for power and video.

For more options, see our guide to the best PoE security camera system for home.

What are examples of PoE camera setups?

A PoE setup can use one camera with a compatible power source or several cameras connected to an NVR. Match the equipment to the number of cameras and the recording method you want.

The REOLINK PoE Security Camera RLC-510A is a single-camera option for someone building a system around compatible Reolink equipment. It can record to supported microSD storage, FTP, NAS, or Reolink PoE NVRs; it doesn't support third-party NVRs or camera systems.

The Hiseeu 4K PoE PTZ Security Camera system includes 6 cameras and an NVR with 8 built-in PoE ports. It includes a 3TB hard drive and can work for local monitor viewing without internet, while remote access requires a router connection to the internet.

For an entrance where visitors need to communicate with you, a doorbell may suit the job better; compare video doorbell vs security camera. If you want a light and camera together, see our Blink Outdoor 4 Floodlight Camera review.

Is PoE better than a solar or battery camera?

PoE is a wired choice, while solar and battery cameras suit locations where running Ethernet is difficult. The better fit depends on your cable access, power needs, and recording preferences.

A wired camera needs a cable route to its PoE source. Solar cameras can reduce the need for a fixed power connection, but they use a different setup and may depend on sun exposure and battery capacity.

If you can't route Ethernet to a camera location, compare best solar security cameras before deciding. For a PoE camera, map the full cable route and confirm its length and compatibility before installation.

Is a PoE security camera right for you?

Choose PoE if you can run Ethernet to the camera locations and want power and data on one wired connection. Choose a wireless or solar option if cable routing is impractical, then check how that camera handles power and recording.

For a single camera, confirm the compatible PoE source and storage options. For a complete system, check camera count, NVR ports, hard drive capacity, and remote-access requirements before you buy.

Frequently asked questions

What is PoE in security cameras?

PoE means Power over Ethernet. It lets compatible equipment send electrical power and network data through one Ethernet cable, so a camera can use that cable for power and video instead of a separate power lead.

The camera and power source must support compatible PoE connections.

What equipment do I need for a PoE security camera system?

You need a PoE camera, Ethernet cable, and a compatible PoE source, such as a PoE switch, injector, or NVR with PoE ports. For recording, add an NVR or another storage method the camera supports.

Check compatibility and cable limits before installation.

Does a PoE security camera need Wi-Fi?

No, the camera's connection to its PoE source uses Ethernet rather than Wi-Fi. Remote viewing through an app may still need the recorder or network equipment connected to a router and internet service.

Some systems can record locally when the internet is unavailable.

Can PoE cameras work without internet?

They can record locally without internet if the camera connects to a recorder or storage device that supports local recording. Internet access is generally needed for remote viewing and alerts away from home.

Check the camera and recorder instructions for the exact setup.