Quick answer: a single Ethernet run does two jobs at once, carrying video out and power in over one cable rated for roughly 100 meters before you need a repeater, which is why the Reolink RLC-820A is the pick for one sharp 4K camera at the front door, and the Reolink RLC-510A 2-Pack wires up two cameras for less than a single flagship WiFi camera often costs alone.

Bottom Line

Sharpest single 4K dome

Reolink RLC-820A

4K resolution, human/vehicle/animal detection, and 100ft IR night vision in a wired dome. The obvious choice when you only need one camera watching one important spot, and want the sharpest picture that spot can get.

See Reolink RLC-820A →
Best value for two cameras

Reolink RLC-510A (2-Pack)

5MP with the same person/vehicle/animal detection as the pricier Reolink model, sold as a pair. Wiring up front and back coverage for close to what one premium single camera costs.

See Reolink RLC-510A 2-Pack →

Neither of these cameras uses WiFi at all. Each one runs on a single Ethernet cable that carries both its network connection and its power, which changes how you shop for a camera more than most spec sheets let on. Here's the full breakdown.

PoE Camera Spec Comparison

Both cameras connect over standard Ethernet and speak ONVIF, so third-party NVR software can pick them up regardless of brand. The differences show up in resolution, field of view, and how many cameras you get per purchase.

Feature Reolink RLC-820A Reolink RLC-510A (2-Pack)
Resolution 4K (8MP) 5MP
Form factor Dome Bullet
Power/connection PoE (Ethernet) PoE (Ethernet)
Lens/field of view Standard fixed lens Standard fixed lens
Night vision range Up to 100ft IR Up to 100ft IR
Smart detection Human/vehicle/animal Person/vehicle/animal
Weatherproofing Outdoor-rated Outdoor-rated
Local storage MicroSD up to 512GB MicroSD up to 512GB
Cameras included 1 2
NVR or PoE switch included No No
Price $$ $$

Price tiers are approximate. $ = under $50, $$ = $50 to 150, $$$ = $150 to 300, $$$$ = over $300. Tap any link for the current Amazon price.

Neither of these ships with a PoE switch, injector, or NVR. Each is a standalone camera, and you'll need to supply the power source yourself, which is covered in the installation section below.

What PoE Camera Owners Actually Report

Reolink sells primarily to the DIY and small-business surveillance crowd rather than the smart-home gadget crowd, so the review themes skew more technical than a typical WiFi camera listing.

Reolink RLC-820A

Owners who already run a PoE switch or NVR describe setup as close to plug-and-play, with the camera showing up on the network within minutes. The recurring theme among reviewers is that image quality at 4K is a noticeable step up from Reolink's older 5MP models, particularly at night. The most common friction point is on the buyer's end, not the camera's: people who assumed the listing included a power source and had to separately source a PoE switch or injector.

Reolink RLC-510A

As the budget option of the pair, the RLC-510A draws praise less for image quality and more for making a multi-camera wired system affordable. Owners running the 2-pack across a front and back yard describe the person/vehicle detection as accurate enough to cut down on false alerts from passing cars and blowing branches, which is the main complaint on cheaper WiFi cameras that lack the same AI filtering.

Jacob’s read on this category

The camera is the easy part of a PoE install. The real decision is whether you're willing to pull Ethernet through a wall, attic, or conduit to get there, and whether you already own (or want to buy) a PoE switch. If you answer yes to both, PoE cameras are the most reliable security hardware you can put outside a house: no battery to recharge, no WiFi signal for anyone to jam, and a full-resolution stream that doesn't degrade because a neighbor's router is hogging the 2.4GHz band. If pulling cable isn't realistic in your situation, don't force it. Go read our guide to outdoor cameras for renters instead, since running Ethernet through someone else's walls usually isn't an option anyway.

Why PoE Beats WiFi for This Job

The short version: a wired camera cannot be jammed, and it cannot drop frames because your router is busy streaming something else.

Every WiFi camera, no matter how good, shares one weakness: it depends on a radio signal reaching a router that has to juggle every other device in the house. Cheap RF jammers and WiFi deauthentication tools are widely known and trivially available, and disabling a wireless camera's connection before a break-in is a documented tactic. A PoE camera has no WiFi radio to jam in the first place. The only way to take it offline is to physically cut the cable, which is a much harder and more obvious act than sitting in a car with a jammer.

Power is the other half of the equation. A battery-powered WiFi camera needs recharging every few weeks depending on activity level, and a wired-but-WiFi camera still needs an outlet near the mounting point, which most exterior walls don't have. PoE solves both problems with the same cable: continuous power, no batteries, no separate electrician visit for an outdoor outlet.

The tradeoff is installation effort. Running Ethernet through a wall, attic, or underground conduit takes more work than pairing a WiFi camera with your phone. If you already have Ethernet infrastructure in your home, or you're comfortable running a cable yourself, the tradeoff favors PoE heavily. If you'd rather avoid any wiring at all, our guide to security cameras without a subscription covers strong WiFi options that skip both the cable and the monthly fee.

What You Need to Actually Install One

Neither camera above includes a power source. Here's what fills that gap.

A PoE switchA network switch with built-in PoE ports powers and connects the camera through the same cable. This is the cleanest option if you're setting up more than one camera, since one switch can power several cameras at once.
A PoE injectorIf you already have a standard (non-PoE) switch or router, a small PoE injector sits between it and the camera, adding power to an existing Ethernet run without replacing your networking gear. This is the cheapest path for a single camera.
A PoE NVRA dedicated network video recorder with built-in PoE ports both powers the camera and handles continuous recording to its own hard drive, which is worth the extra cost once you're running three or more cameras and don't want to manage individual microSD cards.
Cable run distanceStandard Ethernet is rated for roughly 100 meters (about 328 feet) before signal quality drops. That covers most house-to-garage or house-to-yard runs. Longer distances need a PoE extender partway down the line.

Reolink's broader camera catalog spans both PoE and pure WiFi models. If you're deciding between the two approaches for the same yard, our Eufy vs Reolink comparison covers how Reolink's WiFi lineup stacks up against a battery-powered competitor for buyers who'd rather skip the cable entirely.

Which PoE Camera Should You Buy?

One camera, one important spotReolink RLC-820A. The sharpest single-camera option here, and 4K resolution matters most when you're relying on one camera to identify a face or a plate.
Front and back coverage on a budgetReolink RLC-510A (2-Pack). Two wired cameras with real AI detection, priced to make a two-point system affordable without dropping down to an unbranded no-name camera.
You don't already have a PoE switchBudget for a PoE injector alongside whichever camera you choose. It typically costs far less than the camera itself and is the fastest way to add PoE power to an existing non-PoE network.
Renting, or can't run cableSkip PoE entirely. See our outdoor camera picks for renters for battery and WiFi options that don't require modifying the property.

Frequently Asked Questions

What does PoE mean on a security camera?
PoE stands for Power over Ethernet. A single Ethernet cable carries both the camera's network data and its electrical power, so there is no separate power brick or outlet needed at the camera itself. You do need a PoE-capable switch, a PoE injector, or a PoE-enabled NVR somewhere back at the network closet to actually supply that power.
Are PoE cameras more reliable than WiFi cameras?
For uptime, yes. A WiFi camera depends on a clean signal reaching every mounting point and stops working the moment that signal is jammed, blocked, or overloaded, which is a known technique used to disable wireless cameras before a break-in. A wired PoE camera has no radio to jam. It also keeps a stable full-resolution stream instead of the WiFi camera's habit of dropping to a lower bitrate when the signal gets weak.
Do PoE cameras need an NVR?
Not necessarily. A standalone PoE camera like the ones in this guide will record to a microSD card and stream live over its own app without an NVR. An NVR (network video recorder) becomes worth adding once you have several cameras and want one box handling continuous recording, longer local storage, and a single interface for all of them instead of juggling one app per camera.
How far can a PoE security camera be from the router?
Standard Ethernet cable is rated for roughly 100 meters (about 328 feet) before the signal degrades past a usable point, and PoE power rides along that same limit. That covers most detached garages and backyard runs. Beyond that distance you need a PoE extender/repeater partway down the cable, or a switch closer to the camera.
Can I mix PoE cameras from different brands on one system?
Usually yes, as long as the camera supports the ONVIF standard, which lets third-party NVR and recording software talk to it regardless of brand. Reolink PoE cameras support ONVIF, so you can run a mixed-brand setup on compatible NVR software even though each brand's own app only shows its own cameras.

Behind This Comparison

PoE cameras get skipped over by a lot of "best security camera" roundups because the audience is assumed to want WiFi and a phone app, full stop. We picked these two because they cover the real use cases for a wired setup: one sharp camera at a single high-value spot and an affordable two-camera pair for buyers wiring up more than one entry point. Specs above were cross-checked against each product's current Amazon listing title and description. We do not run our own NVR bench tests, so treat the owner-report themes as a supplement to, not a replacement for, the manufacturer spec sheet. Sensor, lens and PoE specs for the top pick come from Reolink's RLC-820A page; the power budgets in the table follow the IEEE 802.3 PoE standard.

We do not take payment from Reolink or any brand mentioned here. If you spot an error, please let us know.

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