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In the modern progressive world, a memory card is not only a necessary thing, but simply a necessary one. We use it in any gadget: smartphone, tablet, laptop, in the car to listen to music, as well as in the DVR. The life of a modern person can no longer be imagined without it, because the built-in memory of the above devices is hardly enough for the most important needs. Before you make a choice, you need to familiarize yourself with what the modern market offers and determine what exactly this is worth your attention.

How to choose a memory card for the DVR.

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Types of memory cards

At the moment there are several types of these devices in the following formats:

• SD - do not differ in special capacity, as a rule, their volume is up to 3 gigabytes;
• SDHC is a newer generation of cards (compared to previous ones), they are issued with a capacity of up to 32 GB;
• SDXC - as a rule, tablets or PDAs are most often installed; they are distinguished by a relatively large amount of up to 2 TB.

In the characteristics of "flash drives" you can see such a thing as "class". This parameter is responsible for the recording speed of the drive, as well as the quality of playback of the recorded data.

How to choose a memory card for the DVR

What does the DVR need

You should initially carefully study the characteristics of the device you purchased, and only after that proceed to the choice of drive, otherwise it may result in a significant overpayment.

How much memory do you need?

Be sure to think carefully before buying. Not always the rule “the more - the better” works. On average, 8 GB is enough for navigators (by the way, maps of various cities and countries, as well as several films) will fit here. But for a “road memory” on long journeys this amount of memory may not be enough. Well, if you constantly move around the city and often make stops, then you can choose simpler and, moreover, cheaper drives.

What format do you prefer?

As mentioned above, most often for the "road observers" use the storage format SD. But SDHC is a more modern version - in other words, SD's younger brother. SDHC cards have a large volume. In addition, their size is slightly larger than SD (by the way, because of this, they are more convenient to use, as consumers say). Note that the newest DVRs support the format of SDXC. They differ not only in large volume, but also in high speed. There are also MicroSD for sale - they are the most compact carriers in their dimensions and, besides, the most popular ones today. As a rule, they are the same as the previous ones, exclusively for new DVRs (not older than three years).

Speed ​​class

Note that this function does not play a big role. However, it determines the speed of information exchange with the device to which the recording is made. That is, the higher it is, the better the quality of the recording, and vice versa. There are quite a few of these classes: they start at 1 MB per second and end at more than 10. How do you know the class of a drive? To do this, it is enough to consider on its outer side a figure circled in a circle.

Importantthat the speed of information exchange depends not only on the selected drive, but also on the device itself. It should be noted that if the device is outdated, it simply will not see the new generation flash drive. That is why before buying a DVR, it is so important to read its instructions and study the information with which particular devices it is able to work.

What is installed in cars most often

As a rule, car owners most often prefer the following cards to their DVRs:

• SD cards with a write speed of 1 to 2 MB per second;
• SD drives up to 4 Mb / s, which, like the previous ones, are characterized by minimal write speed;
• SD - high-frequency cards, the speed of data acquisition of these devices is 8 megabytes per second;
• SD new generation, which produce data recording at a speed of more than 10 MB per second.

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Note that these units record video in digital format 1920 * 1080, which is equal to 30 kilobytes per second. If the volume of the flash drive is 4 gigabytes, you can make a video in Full HD for 45 minutes. If its volume is 8 GB, the recording duration, respectively, will increase to 90 minutes in the same format. And drives, whose volume is equal to 32 GB, are capable of saving an average of 300 minutes of recording a car recorder.

Всё зависит от выбора режима записи – чем он выше – тем больше места будет отнимать видео, и наоборот. Memory card selection для видеорегистратора необходимо выполнять, исходя из личных предпочтений. К примеру, чтобы видео было снято с разрешением в 1280 * 720, будет достаточно карточки со скоростью 5Мб/с, если 1290 * 1080 – быстрота чтения не должна составлять менее 8 Мб/с.

We hope this article was helpful to you. Now you have the information, but the choice ... It remains solely for you!