What Is DVR / SVR / NVR / HVR And What Are The Key Differences? Check Out ALL Here

What Is DVR / SVR / NVR / HVR And What Are The Key Differences? Check Out ALL Here

Thanks to the advancement of technology today we have at our disposal an extensive variety of devices for recordings of security cameras.

The impressive increase in safety and the advancement of technology were responsible for this wide range of devices.

Devices such as DVR / SVR / NVR / HVR are at our disposal in the market to complement the needs regarding residential and business monitoring.

In the old days most people had problems with where they would connect the cameras and this made it difficult to choose the devices.

Most ended up acquiring a PC capture card and plugged in the cameras.

A very complicated and not a very reliable process since at any moment the board could conflict with the PC and burn (or stop working).

In addition to being quite “old” this model, it caused several problems such as erasing the recordings and leaving companies and people at hand when making a backup, for example.

The need of these people made the factories create several devices to make this connection process more practical.

Nowadays there is a variety of devices with high capacity to perform such service.

Besides the great variety that we have in the market, the price was very affordable.

Today we find devices called Multi-HD DVRs (which work with more than one technology) at very competitive prices.

Before deciding (or not) to upgrade your system and buy a device, see the difference between DVR / SVR / NVR / HVR to choose the right model for your needs.

Check out other devices below and their advantages!

What Is A DVR?

DVR ( Digital Video Recorder ) was the first technology that ended with the use of the Capture Card, leaving totally unnecessary the use of a computer.

This is because the device receives the cameras directly in it and can remotely access via RJ45 connector (available from the factory).

This device is still widely used and its cost benefit has pleased many people.

The recording limit of this device is 960 lines of resolution .

If you plan to do a project in your home or business and have a slightly lower acquisition value, maybe this is your best choice.

It is good to remember that the DVR device has a reasonable image quality, so if you seek excellence you will have to pay a little more expensive on another device.

What Is An SVR?

SVR is the abbreviation for (System Video Recorder) a device created exclusively by the brand GIGA ( link ).

Its technology offers certain advantages over other devices.

One of these advantages is in the source that is the bivolt that offers an additional protection against outbreak and short circuit.

The SVR also has a technology limitation and the maximum recording resolution is up to 960 lines as well.

Another advantage of the SVR is found in its connection cables.

Instead of using the coaxial cable on your premises, you will use the UTP cable (one cable commonly used for creating wire based on computer networks, also known as cable shagged / network cable).

When we buy the SVR device the unit service also accompanies the baluns to connect the analog cameras.

What Is An NVR?

NVR is the acronym for ( Network Video Recorder) is a software program that records videos in a digital format for disk drives, USB flash, SD memory card or other storage device.

The NVR works as a dvr with the ability to manage all the monitoring of IP cameras.

Many IP cameras have the capacity for internal storage through a memory card, but it has nothing better than an equipment capable of managing everything in one place.

This is exactly the function of the NVR.

Some NVR devices have the ability to play HD or Full HD videos using latest technology.

The NVR also enables remote access monitoring and viewing through smartphones and tablets.

The company Intelbras also offers excellent service options for the optimal size of your CCTV project.

It is worth checking some products of this line.

What Is An HVR?

The benefits of DVR devices are in the processing capacity that allows the management of images with frame rate rates.

The HVR ( Hybrid Video Recoder ) is nothing more than a DVR capable of accepting analog and IP cameras at the same time, which makes him a DVR hybrid.

This service is essential for customers who have IP cameras or analog cameras and do not want to replace them with other newer and available technologies.

The brands in Brazil that have Hybrid DVRs (Multi-HD) are several: JFL, TecVoz, Intelbras and Giga Security.

The TecVoz has hybrid DVRs with a new technology that allows the transmission in HD and easily support analog cameras of other brands.

Having a good resolution of the image is of great importance to perfectly capture the images.

GIGA HVRs support a resolution of 720p (1280 × 720) that were recently released.

The resolution offered by Tecvoz supports 720p and Full HD (1080p).

HVRs also have cloud access, cooperating for remote access without the need for port release.

In addition to other functions such as: ARSP, UPNP, Mobile and others.

Which Is The Best Among Appliances?

Telling for sure which is the best option between DVR / SVR / NVR / HVR will depend a lot on your planning.

For example, the equipment used for the monitoring of a residence is quite different from the equipment used in a large company.

Besides that, will you use a hybrid system (with multiple technologies) or just one type of camera?

This question is very much in line with your investment capital.

What we are trying to do here is to make it clear about the advantages of one another, to facilitate your choice at the time of purchase.

See below the benefits of each of these devices.

  • TheSVR has the exclusivity of the company GIGA Security and offers a package with a great communication between the equipment of the company.
  • TheHVR is recommended for those people who do not want to switch from low-quality mini-cameras and analogue to newer technologies.
  • TheNVR is nothing more than a powerful DVR targeted to IP cameras, since its processor and capacity for recording space are quite high.


The technology goes according to what you are willing to invest.

The best option, in my humble point of view, is to invest in devices considered hybrids, which are currently affordable and work with various technologies.

This will surely be the option that will allow you more flexibility and less investment at first, and can update the cameras in the future without the need to change your device.

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