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How To Detect An Original Memory Card And Where To Buy

Many gadgets, such as televisions and cars, have exciting events where companies highlight new features and impressive features. With memory card, however, things are rarely so exciting.

Each new card is a small chip covered with a seemingly random collection of letters and numbers. Last week, Sandisk (which is owned by Mega-storage giant, Western Digital) introduced a super-fast version of its 400GB MicroSD card. There are many complicated things in that letter, considering that it fits perfectly.


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Tips To Detect Original SD Cards

  • Card types

There are a ton of different types of memory cards, from the high-end performance of XQD to the outdated robustness of Compact Flash. For this article, however, we will focus mainly on Secure Digital (SD) and MicroSD.

Most current digital cameras are based on SD cards, sometimes two on high-end cameras, so photographers can back up their shots in real time. Smartphones and other devices such as GoPro cameras, drones and the Nintendo switch, however, depend on the MicroSD cards, which are considerably smaller, hence the “micro” in the name.

SD vs SDHC vs SHXC

It is unlikely that you want to buy normal SD cards, but you will find many SDHC and SDXC cards on the market, which look the same from the hardware point of view but have very different capabilities. The key difference is the file system used by the cards, and it affects the amount of storage it can contain. SD cards are limited to 2 GB, while SDHC cards can handle between 4GB and 32GB thanks to a file system called FAT 32. SDXC cards use the exFAT file system, which increases its capacity to a range of 64GB to 2TB.

It is important to keep in mind that not all cameras will support SDXC, especially if they have a generation or more, so it is worth consulting them before making the jump.

The HC and XC designations are also applied with MicroSD. Therefore, Sandisk Extreme Extreme 400GB, for example, is a MicroSDXC, which uses the specific file system that allows all that capacity.

  • Storage numbers

This is quite simple: companies offer a number that represents the total capacity of the memory on the card. The hard part, though, is that you will not get 256 GB of available storage on a 256 GB card. The company needs to include the file system mentioned above, and it takes up some space. The amount of space varies from card to card and between manufacturers, but if you see that you are missing a small space on your card, do not panic.

  • Transfer speeds

This is by far the most complex part of figuring out what’s going on inside those tiny memory cards. It is important to know how fast the card can read and write data, especially if you are doing something as demanding as recording 4K videos, but the standards and measures may vary depending on the age of the card and the manufacturer.

  • Reading speed

The reading speed is an indicator of how fast you can open something on the card. Therefore, when you take a picture of your camera or try to transmit movie data from your memory card to your phone, you must have enough bandwidth to move those bits.

When you see a number like 1000x or a speed like 150 MB / s on a card, that refers to the maximum read speed of the card. (The first format is a somewhat outdated and imprecise way of expressing it). If you test the reading speed of a card, you should not expect to get your maximum speed for a long time, if at all. That is the maximum and you will need a device that can read so fast to accommodate it. So, if you stick a card so fast on an old card reader you’ve had for years, do not expect dizzy transfers simply because you have a quick card.

You will often see a Roman numeral on a card, which indicates the speed of the card’s interface regarding its ultra high-speed rating. UHS-2 cards have different pins than non-UHS and UHS-1 cards, which gives you the speed limit. Cards without a UHS number are limited to 25 MB / s. UHS-I cards reach 104 MB / s, and UHS-II exceeds the limit up to 312 MB / s. There are many factors that contribute to the maximum read speed of a card, including compatibility with the device that performs the reading, as well as the speed of the memory itself.

  • Writing speed

The write speed measures the capacity of the card to store data in the memory modules inside the card. It is expressed differently because it addresses different demands. Instead of using the maximum speed, companies indicate the minimum writing speed. The difference lies in the fact that if the writing speed of a letter drops too low, even for a short period, it could interrupt the camera’s ability to record video sequences on the card. This has become increasingly important as video resolutions and frame rates have increased in recent years.

The most common method for expressing writing speed used to be a simple class number, which looks like a number within a circle. That scale stops at 10, which means it has a minimum write speed of 10 MB / s. For 4K video, you want at least one class 6.

The current way to indicate the writing speed with a UHS speed class classification, which appears as a 1 or 3 within a “U” shape. The UHS 1 cards maintain a minimum of 10MB / s, while the UHS 3 cards promise 30MB / s.

There is also another relatively new classification, called Video Speed ​​Class, which is represented by a “V” before a number that represents its transfer rate in MB / s. Then, a V10 card has a minimum write speed of 10MB / s, such as a class 10 card or a UHS 1 speed class card. There is a lot of redundancy.

The video speed scale goes up to V90, which offers a write speed of 90 MB / s and goes beyond what you need for 4K video and in 8K recording territory.

So, what do you need?
Cards with a Class 10, U1 or V10 rating (all of which promise a write speed of 10 MB / s) will be fine if you plan to record 1080p HD video or take photos with most cameras. If you are going to take 4K videos, it is worthwhile to upload to a U3 or V30 rated card to get write speeds of 30 MB / s.


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And while buying memory cards, it’s conventional wisdom in the world of photography to buy some smaller cards and rotate them instead of carrying all your sequences and photos in a single digital basket. After all, memory cards can be broken or corrupted, and losing some of your photos is always better than losing them all.

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About the author

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Joseph Onuoha

I have a thing for technology, blogging is just my way of showing it. Besides blogging I'm a student at Imo State University, Owerri. Also an SEO expert, so you can call on me for your web development. Kindly use our contact us page to do so.

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