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What is an NVR Device? Its Working, Types, Benefits, and How to Choose for Yourself collapse-icon

CCTVSeptember 22, 2025

What is an NVR Device? Its Working, Types, Benefits, and How to Choose for Yourself 

What is an NVR Device? Its Working, Types, Benefits, and How to Choose for Yourself 

CCTV security cameras have become a necessity in the present modern era to capture your innocence or prove a crime, or just to view the events that have happened.  However, these cameras are not reliable without the rest of the devices that are installed with them, including a video recorder. In case of IP cameras, NVRs or Network video recorders are used to modify the camera settings and to save the recorded footage. NVRs play a major role in CCTV surveillance systems that we will discuss in this article, including their types and benefits. 

What is an NVR Device and How Is It Different from DVR?  

NVR or Network Video Recorder is a device used in CCTV systems to connect cameras and record footage. The device is specially used in surveillance systems that use IP cameras. These cameras don’t need wiring connections to transmit footage and are connected over the network to send recordings remotely. A major difference between NRV and DVR is that the digital video recorders are connected to the cameras with wired connections, and network video recorders are used to connect wireless cameras over a LAN connection. 

Understanding Various Kinds of NVR Devices  

Basic NVRs 

Basics NVR devices are best for the surveillance systems used in small spaces like a house, or small shop, or an office. They come with different channel capacities based on the total number of cameras installed. For instance, only four cameras can be connected to a four-channel NVR. Also, they have a processor and a separate storage device installed inside to save footage. 

PC Connected NVRs 

In such cases, a special software is installed on the personal computer, which then acts as an NVR for all the connected cameras in a space. Its CPU is used for the processing of cameras, and a hard disk or SSD is used as the storage device. 

PoE NVRs 

These types of NVR are most commonly used in every type of space and scale of surveillance system, as they also provide power to CCTV cameras. This makes them easy to install and use. 

Cloud-Based NVRs 

NVRs that support cloud platforms use cloud storage to save the recorded footage and don’t have a separate storage device like a hard disk. This enhances the security of the saved images as the cloud platforms are highly secure and almost unbreachable. Moreover, the users can access the footage remotely from anywhere at any time and from any device they want. 

How NVR Devices Work?  

Working of an NVR device can be explained in these simple steps: 

  • Connection: The camera devices are connected to the NVR wirelessly over a network. They capture images and transmit them to the video recorder.  
  • Processing: NVR devices don’t process the video. Each IP camera has a processor to encode and compress the video.  
  • Storing Videos: These devices store the videos in a storage device or a cloud platform based on the user’s choice. A user can review the footage anytime, remotely on their smartphone or laptop. 

Major Benefits of Using NVR Devices Over DVR  

High Quality Video Recording

NVR devices are connected to IP cameras that support 4K and full HD recordings. They capture every detail and real colors so that you can review footage without much hassle and collect evidence.  

Scalable

As the NVR devices and IP cameras are connected wirelessly, these surveillance systems are easily scalable. If the owner is expanding the security zone or adding new floors to the building, they can use the NVR systems to expand the surveillance area.  

Easy Installation

Due to a major benefit that IP cameras and NVRs don’t require wire installation, they can be easily placed at different positions. Users can change their angles as per the security needs without opening screws or installing new wires.  

Data Security

Higher NVR models secure sensitive footage with heavy encryption and authentication. They make it impossible to hack into the system and access footage for unauthorized users.  

How to Choose the Best NVR for Your Security Needs?  

Here are the following checks you must consider before sourcing an NVR:  

Number of Channels  

A four-channel NRV can only support four IP cameras, and an eight-channel NVR can support eight CCTV cameras. So, make sure you choose an NVR that connects the exact number of cameras you need in your property. For the best deal, you should choose an NVR with more channels than needed to be futureproof.  

Storage Capacity  

Check how many hard drive slots your new NVR should have. This will help you determine whether you can upgrade its storage capacity later or not.  

High Quality Recording 

Make sure that your new NVR supports high-quality recording up to 4K. Even if you don’t record in 4K quality, the device should support it for future needs. However, you should know that IP cameras and NVRs both should support 4K to record in this resolution.  

Easy to Use  

Check whether the interface of the NVR is easy to operate or not. Go through all the options, like video settings and configurations, to know which option triggers which action. 

Why Should You Choose NVR Devices in Bulk from DigiMRO?  

When you need reliable surveillance solutions, buying NVR devices in bulk from DigiMRO is the best choice. We offer a wide range of smart feature NVRs that support modern IP cameras. Bulk sourcing through our platform helps you save costs and ensure you get certified quality. With timely delivery and trusted brands, you don’t have to worry about mismatched devices or multiple suppliers. If you want to upgrade the system or set up a new surveillance zone, DigiMRO is there for all your security needs. 

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