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Reolink RLK8-520D4 (5 MP dome set) review

Four 5 MP dome cameras, an eight-channel recorder with a 2 TB drive, and 18-meter network cables in the box. Reolink states person and vehicle detection, continuous recording and compatibility with its 4, 5 and 8 MP cameras.

The conclusion The safest wired purchase here. Not the sharpest, and the one most likely to still be supported when you want a fifth camera.

Wired systems are bought once and lived with for years, which makes the question “will this still be supported” more important than any figure on the box. Reolink is the answer to that question in this hub: a long firmware record, an app that is actively maintained, and a recorder that accepts the company’s whole camera range.

The 5 MP decision

Deliberately not 4K. A 5 MP stream carries about 60% of the pixels of an 8 MP one, so less data for the same period: the supplied 2 TB holds noticeably more history, and Reolink states up to 16 TB in total with an added drive. Reolink does not publish the sensor size, so any night-time advantage cannot be put in figures. For a long drive where somebody has to be identifiable at the far end, 4K is the right answer: the sister kit, the Reolink RLK8-800B4, has four 4K bullets and costs more.

The cables in the box

Eighteen meters each. That is generous, and it is also consumed faster than people expect — a run goes up a wall, along a loft, down a cavity and round a door frame, and straight-line distance is not what it costs. Measure the real routes before ordering extra.

Domes, and their one chore

The transparent bubble collects dust, rain spots and spider webs, and the camera’s own infrared reflects off them at night into a haze. Two wipes a year keeps the image the sensor can actually produce.

Who it suits

A household that wants to install once, expand occasionally, and not think about it again.

Availability

Listed but with no offer on the American Amazon store — the reference exists there and nobody is currently selling it.

Prices and availability are what Keepa reported on the date this page was updated; both move.

What reassures, and what does not

Strengths

  • 18 m (59 ft) cables supplied — enough for a normal house without a second order
  • 2 TB drive fitted, and 5 MP fills it far more slowly than 4K
  • Recorder takes any Reolink PoE or Wi-Fi camera, fixed or autofocus
  • Long firmware history and an app that is actively maintained

Compromises

  • Dome bubbles need occasional cleaning or the night image hazes
  • 5 MP rather than 4K, which is a deliberate trade
  • Reolink cameras only — the recorder is not open to other brands
  • Dome housings are harder to aim precisely than bullets

Specifications

Camera resolution5 MP (2560 × 1920), stated by Reolink
Night visionInfrared, stated to 30 m (98 ft)
Recorder8-channel with 2 TB drive, up to 16 TB stated
Cabling18 m (59 ft) network cables supplied
Recording24/7 continuous on all cameras
ExpansionAny Reolink PoE or Wi-Fi camera, 4 to 8 MP
Amazon referenceB07CQLB8HS
EAN0633696952966

The questions we are asked

Why 5 MP rather than 4K?

Mostly storage. A 5 MP stream carries about 60% of the pixels of 8 MP, so less data for the same period, and the supplied 2 TB lasts noticeably longer. Reolink does not publish the sensor size, so the effect at night cannot be put in figures. For most houses the trade is favorable; on a long drive where identification matters, 4K wins, for instance with the Reolink RLK8-800B4.

How far do 18 m (59 ft) cables reach?

Around a normal house, usually far enough for the recorder to sit centrally and reach four positions. Measure the actual runs before assuming it, including the vertical drops and the route round door frames — cable length is consumed by geometry, not by straight-line distance.

Can I add another brand's camera?

Reolink states compatibility with its own PoE and Wi-Fi cameras. Some ONVIF cameras work on some recorders, and none of it is guaranteed. Plan on staying within the brand, which is the usual and reasonable price of a kit that works out of the box.

Our score

7.8/ 10

The safest wired purchase here. Not the sharpest, and the one most likely to still be supported when you want a fifth camera.

What this one costs among PoE camera systems

A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.

Details checked on September 2, 2026.

The buyer this one serves, among security devices

A house wanting a system that will still be supported and expandable in five years.

The security devices guides it appears in

Sources

Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

What we look at on these security devices