NVR vs DVR: Which CCTV Recorder Should You Buy?

By Qyvea Limited · 3 November 2026 · 4 min read

What a DVR does

DVR stands for digital video recorder. It works with analog HD cameras (the HD-TVI, AHD and CVI types). Each camera sends its picture down a coaxial cable to the recorder, and the DVR turns that signal into digital video, compresses it and stores it on the hard drive.

The camera itself is simple. All the heavy work happens inside the recorder. Most analog cameras also need a separate power cable, so a typical run is one coaxial cable plus one power lead per camera, or a single combined cable that carries both.

DVR systems are common in older installations, and they remain popular for small shops and homes where the cabling is already in the walls.

What an NVR does

NVR stands for network video recorder. It works with IP cameras. Here the camera does the encoding itself and sends finished digital video over an ordinary network cable (Cat5e or Cat6) to the recorder. The NVR simply records and manages what arrives.

Many NVRs have built-in PoE ports, which means one network cable carries both the picture and the power to each camera. That makes a neat installation with fewer cables and no separate power supplies at every camera.

IP cameras are available in higher resolutions and with more built-in features, such as people and vehicle detection, wider views and better night images. You can read about the options in our guide to CCTV camera types.

NVR vs DVR side by side

Question	DVR (analog HD)	NVR (IP)
Camera type	Analog HD (TVI, AHD, CVI)	IP cameras
Cable	Coaxial plus power	Cat5e or Cat6 network cable, often with PoE
Picture detail	Good for general watching	Higher resolutions and smarter features available
Longest cable run	Often longer than a network cable	About 100 m per run without extra equipment
Adding cameras later	Limited by the recorder's channels	Flexible, needs a switch port and a free channel
Best for	Existing coax cabling, simple systems	New builds and larger or higher quality systems

Notice that neither is simply better. They suit different situations.

When a DVR is the sensible choice

• You already have coax cabling in place. Replacing the recorder and cameras on the same cable avoids opening walls and ceilings again.
• Long cable runs. A network cable is limited to about 100 metres between camera and switch. Analog HD over coax can often go further, depending on the camera type and cable quality. Check the specification of the exact equipment.
• A small, simple system. A few cameras watching a shop front or a yard do not always need advanced features.

If you want to keep your old coax but add some IP cameras later, ask about a hybrid recorder that accepts both kinds.

When an NVR is the better choice

• A new installation. If the cables are not yet laid, network cable with PoE is usually the cleanest and most future-proof route.
• You want better detail. Reading number plates, seeing faces at a gate or covering a wide yard are all easier with higher resolution IP cameras.
• You want smart alerts. Many IP cameras can tell a person from swaying branches, which cuts false alarms.
• You may grow. Adding a camera later usually means one more cable and a free port.

Before you choose, work out how long the video must be kept, because higher resolution uses more storage. Our CCTV storage calculator guide shows how to estimate the hard drive size.

Costs to think about

Do not compare only the price of the recorder. Compare the whole system: the cameras, the cable, the switch or power supplies, the hard drive and the installation work. IP systems often cost more per camera, but a system that reuses existing cable can change the picture entirely.

For a realistic idea of what drives the total, read how much CCTV costs in Kenya. Prices change, so confirm current figures for the exact items you want in the shop or with us directly.

Security and remote viewing

Both types let you watch from a phone. Whichever you choose, protect it properly:

• Change the default password during setup and use a strong one.
• Keep the recorder's software updated.
• Avoid exposing the recorder directly to the internet. Use the manufacturer's secure cloud or app connection instead.
• With an NVR, keep the cameras on their own switch or PoE ports so they are separate from your general network.

A quick way to decide

1. Do you already have working coaxial cable you want to keep? If yes, lean towards a DVR or hybrid recorder.
2. Is this a fresh installation? If yes, lean towards an NVR with IP cameras.
3. Do any cameras sit more than 100 metres from the recorder? If yes, discuss the layout before buying.
4. Do you need detail such as faces or number plates? If yes, choose IP cameras.
5. How many cameras now, and how many later? Buy a recorder with a couple of spare channels.

If you are unsure, send us a rough description of your site and we will tell you which route fits. You can also see our CCTV installation page, and maintenance and repairs if you already have a system that needs attention.

Frequently asked questions

Can I connect IP cameras to a DVR?

Not to a standard DVR. IP cameras need an NVR, or a hybrid recorder that supports both analog and IP inputs. Check the recorder's specification before buying.

Is an NVR better than a DVR?

Not always. An NVR supports higher resolutions and more features, but a DVR is a sensible choice when you already have coaxial cable or need long cable runs on a simple system.

Do I need PoE for an NVR system?

It is not compulsory, but it is convenient. PoE sends power and video over one network cable, which keeps the installation tidy. Cameras without PoE need their own power supply.

How big a hard drive do I need?

It depends on the number of cameras, their resolution and how many days of video you want to keep. Use a storage calculator or ask your installer to size it for you.

Qyvea Limited, Westlands, Nairobi. We supply and install across Kenya. Delivery only: there is no walk-in shop. WhatsApp +254 113 301 244 or email [email protected].