Memory cards – what do their labels mean?

Today we can very quickly shoot and take photos. Mobile phones have never been equipped with such good cameras, affordable and affordable as they are today. When traveling or going out with friends or family, we often photograph every detail. Sports enthusiasts use action cameras to enjoy high-quality footage from their adventures. However, the internal memory of phones, cameras, and camcorders is often not enough for all these shots and photos. That is why many people decide to buy a higher-capacity memory card. As you may have noticed, there are several categories and types of these cards. Each of them has its purpose – some are only for use on mobile phones, some are suitable for video surveillance, and some are ideal for action cameras.
SD and microSD cards are the most common today. MicroSD is a minor card of its kind. It is mainly used in mobile phones and comes with a standard SD size adapter. MicroSD cards are produced for up to 128GB. They are most often made by Kingston, Transcend, SanDisk, and ADATA.


How can you know which card will suit your needs?


Capacity
The capacity of the memory card is stated on the device itself. If you are an amateur photographer, a 32GB card will suffice. On the other hand, if you buy a card for an IP camera, it would be best to buy a card with the maximum supported capacity.


Memory card type
There are three basic types of cards now standard – SD, SDHC, SDXC. SD cards support up to 2GB of capacity. SDHC (Secure Digital High Capacity) cards are the most common, and they support from 2GB to 32GB. SDXC (Secure Digital Extra Capacity) supports capacities more significant than 32GB to 2TB. Devices that support SDXC cards support both SDHC and SD cards, while devices that support SDHC cards will not be able to use SDXC cards.


Class
There are several basic classes – C, UHS, and V. The standard UHS class is marked with Arabic numerals, usually numbers 1 and 3. UHS 1 supports a minimum write speed of 10MB / s, while UHS supports at least 30Mb / s. You will recognize this mark on the card by the letter U in which the number 1 or 3 is written.
Unlike this class, the UHS highway is marked with Roman numerals – UHS-I, UHS-II, and UHS-III. UHS-I has a bandwidth of up to 104 MB / s, UHS-II up to 312 MB / s, while UHS-III goes a step further and allows throughputs up to 624 MB / s.


Class C supports the values 2, 4, 6, and 10. The cards have the “C” letter and the number inside them. Each number represents a minimum number of MB / s, so C6 indicates a minimum write speed of 6MB / s. In practice, cards marked with the C10 class often also support speeds of up to 80MB / s.
Class V is the designation for the video class, which defines the write speeds of modern digital devices. It is available in versions V6, V10, V30, V60, and V90, representing the write speed, so, e.g., V90 indicates a write speed of 90MB / s. When shooting in 4K resolution, the write speed is essential. The minimum required write speed is 30MB / s.
In addition to these, some SD cards have protection against moisture, rain, shock, and earthquakes… In practice, they are ideal for action, IP cameras, cameras… you can find memory cards of different capacities and classes on Amazon.