The Best MicroSD Cards in 2021

best microsd cards

Though microSD cards have a tiny size they hide plenty of useful options. Here you can find some tips how to choose the best microSD – what information you should be aware of before the purchase and what to pay attention at when buying a card. Remember that the choice of microSD card is the same responsible process as the purchase of NAS or external hard drive for your PC. Therefore we offer you the list of best microSD cards to choose from.

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Last update on 2021-10-21 // The links above are affiliate // Images from Amazon

How to Choose the Best microSD Card


There are two main types of microSD cards – SDHC (Secure Digital High Capacity) and SDXC (Secure Digital eXtended Capacity). The key difference is their storage. SDHC cards offer from 4GB to 32 GB while SDXC cards contain from 64GB to 2TB.

Another thing you should keep in mind is that some devices can accept only SDHC microSD cards. For example, such mobile consoles like the Nintendo 3DS work with SDHC cards only. Still, today plenty of devices are compatible with the SDXC microSD cards as most phones support namely this type of cards.

Speed Classes

Such feature as speed class is a key one when choosing the best microSD card. Nowadays there are such speed classes as 2, 4, 6 and 10. Obviously, the higher class your microSD card has the better and faster performance you will experience. The numbers of each speed class mean the write speed in MB/s (megabytes per second) – e.g. Class 10 = 10 MB/s.

There is no doubt that it’s always better to have a higher speed class. Still, if you are going to record high-resolution videos then you’ll need something more powerful like speed class 10 with UHS classification. UHS stands for ultra high speed and presupposes the highest speed of each microSD model. Cards with UHS classification are also divided into two types – UHS-I (up to 104 MB/s) and UHS-II (up to 312 MB/s).

Another thing you should know is card’s speed rating. There can be either U1 or U3 card’s speed rating. This rating denotes the lowest speed level your card can reach. U1 cards won’t let their write speed get lower than 10 MB/s while U3 cards support at least 30 MB/s. So, if you are buying a card for 4K videos then you will need U3 card’s speed rating.

By the by, if you need a card for video recording then pay attention to a video rating system which is usually marked like V90, V60, V30, etc. So, for 4K video you will need a card with at least V30 rating. Besides, if you can’t find such marker on your microSD then check its write speed.


One of the things you should always remember to do before purchasing a new microSD card is to check the maximum size of a card your device can support. If your device is compatible with cards of 32 GB maximum then look for SDHC cards. In case it is compatible with cards of higher capacity then pay attention at SDXC cards (up to 512 GB).


It’s always necessary to check whether your device is compatible with the cards you are going to buy. For instance, there are cards that will be more suitable for Android-based devices or Raspberry.

Still, there are some other sides of compatibility you should be aware of as your device isn’t the only thing the card must be compatible with. The point is that some microSD cards are more suitable for GoPro products while others, for example, for Nintendo Switch.

Extra Options

A lot of microSD cards have some additional options. Among them, you can find SanDisk Memory Zone App, which automatically moves files from your device to your memory card to free up space, and file recovery software. What is more, microSD cards can be waterproof, X-ray proof, static proof, temperature proof, etc.

9 Best microSD Cards

Samsung EVO Select

Everything You Need from an SD Card

samsung electronics evo select 256gb (mb-me256ha)
Samsung EVO Select or Samsung Evo Plus is an affordable, reliable, and, before anything else, well-performing micro SD card that should satisfy a large base of users. It is available in capacities from 32GB till 512GB and it offers UHS Class U3 and Speed Class 10 compliance.

The card itself provides multiple levels of protection and is resistant to seawater, high temperatures, and even x-rays and magnetic field interferences. More importantly, it is pretty durable and offers up to 10000 mating cycles, and comes with a fairly convincing and respectable 10-year warranty that is a definite proof of its reliability.

When talking about the performance itself, Samsung EVO Select delivers sequential read speeds of up to 100MBps and write speeds of up to 90MBps. These values aren’t impressive; however, they are decent and good enough for a large base of users and you can count on them to get the job done.

All in all, Samsung EVO Select is an exceptional choice and one of the best micro SD cards in the mid-range market. Therefore, don’t hesitate to get yourself one.

  • 10-year warranty
  • Multiple levels of protection
  • Available in various capacities
  • Solid performance
  • Not that impressive random write speeds

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SanDisk Ultra

An Affordable, yet Trustworthy Micro SD Card

sandisk 128gb ultra sdsqua4-128g-gn6ma
SanDisk Ultra micro SD card is a reliable and decent-performing device that presents a solid option for a wide variety of users thanks to its good overall quality.

With this micro SD card, you are getting compliance with C10, U1, and A1 standards, or, translated into numbers, sequential read speeds of up to 120MBps. SanDisk Ultra micro SD card comes with a 10-year warranty and is available in a variety of capacities from 32GB to 1TB. In other words, there is something for everyone.

Therefore, if you need a good quality micro SD card that will give you a lot of versatility at a fair price, SanDisk Ultra should certainly be among your picks.

  • Available in various capacities
  • 10-year warranty
  • A good quality build
  • Reliable performance
  • Fair-priced
  • None

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Silicon Power 3D NAND Superior Pro microSDXC

A Great Performance for a Fair Price

silicon power 3d nand superior pro microsdxc
The most important characteristics of MicroSD cards are speed and capacity, and Silicon Power 3D NAND Superior Pro microSDXC has proved to be very good in both departments. It is available in four sizes (64GB, 128GB, 256GB and 512GB) and offers solid maximum speeds (100MBps sequential read speed and 80MBps sequential write speed) that in reality are a bit lower; nevertheless, still highly competitive with the rest of the bunch.

Silicon Power 3D NAND Superior Pro microSDXC comes with a five-year warranty and complies with all the latest speed standards such as A1, U3 or V30, and altogether presents a perfect option for 4K video material capturing or high-speed continuous shooting. It is dustproof, waterproof, even X-ray proof, and it offers great compatibility.

More importantly, it comes at a very competitive price and delivers great value for the money. However, its quality control isn’t the best; therefore, there are some complaints about its reliability and DOA cases. Nevertheless, these claims are just a minor fraction of its overall purchases and shouldn’t really bother you.

In other words, if you are looking for one of the best microSD cards, that is also one of the more affordable ones at the same time, Silicon Power 3D NAND Superior Pro microSDXC is the card for you.

  • Good value for the money
  • Fast performance
  • Waterproof
  • Five-year warranty
  • Not the best quality control

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SanDisk Extreme microSD U3 A2

Great microSD Card With Environmental Protection

sandisk extreme microsd u3 a2
Another great microSD card is SanDisk Extreme microSD U3 A2. It comes with 160MB/s read speeds which allow transferring large files such as 4K UHD videos and high-res images. But keep in mind that it is compatible only with devices which support such a high speed level. As to the write speeds, this microSD card provides only up to 60MB/s or 90MB/s depending on the card capacity.

SanDisk Extreme microSD U3 A2 has a solid build quality and can withstand low and high temperatures as well as X-rays. What is more, this model is waterproof and shock-proof. There is also SanDisk Memory Zone app which makes file management rather easy.

  • solid build quality
  • environmental protection
  • affordable price
  • poor write speed
  • no “push-to-remove” features

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PNY Elite-X Micro SD

An Excellent MicroSD Budget Option

pny elite-x micro sd
If you are looking for a cheap option for your Android-based smartphone or tablet, PNY Elite-X Micro SD card is an optimal option for you. This is a Class 10 card that complies with U3 standards and, depending on the capacity, offers maximum sequential read speeds of 90MBps (32GB and 64GB cards) or 100MBps (128GB and 256GB cards). Higher capacity cards (128GB and 256GB) also comply with the V30 and A1 standards and as a result present even better overall value, especially when considering the GB per dollar ratio.

All PNY Elite-X Micro SD series cards come with an SD adapter and are both waterproof and dustproof, which goes along with their overall great durability.

On the other hand, these cards are not the most reliable ones. However, they are still in the upper part of the offering and deliver above-average reliability; therefore, that is not something that should bother you. A much bigger worry should be PNY Elite-X Micro SD’s not that great sequential write speeds that present a much bigger issue. Nevertheless, considering its price, certain drawbacks are something you must accept.

Altogether, although it comes with some downsides, this microSD card series offers great value for the money and presents one the best microSD cards for Android and definitely a great buy, if you are looking for a solid and affordable storage tool.

  • Fast performance
  • Durable
  • Great price
  • Low sequential write speeds
  • Not the best reliability

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Netac MicroSD Card

An Excellent Budget-Friendly Micro SD Card Option

netac memory card microsd
If you are seeking the best micro SD card in the low-price market, with solid performance and good durability, Netac MicroSD Card is the device for you.

With this card, you won’t get super-fast speeds or performance of the best SSD drives; however, you will get more than a good “working horse” and a cheaper alternative to the more familiar micro SD cards manufacturers, such as SanDisk and Samsung.

When talking about performance, Netac MicroSD Card provides a sequential read speed of up to 100MBps, while its sequential write speed moves around the 50MBps mark.

This micro SD card is compliant with A1, C10, and U3 standards and is available in capacities from 16GB to 256GB. More importantly, it is reinforced with multiple protection levels that involve shock-proof, temperature-proof, water-proof, and even X-ray proof characteristics, so you can guess this device is pretty durable.

In other words, with Netac MicroSD Card, you are not only getting a good price, but also great durability and overall usability that makes this card worth buying and worth being called one of the best micro SD cards in this market segment.

  • Multiple protection levels
  • Good customer service
  • Good versatility
  • Affordable
  • Not the best quality control

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Transcend 300S

An Affordable, yet Solid Micro SD Card

transcend 64gb 300s ts64gusd300s-ae
Transcend 300S micro SD card is a device that continues the tradition of its predecessors and offers solid performance and overall pretty good usability at more than a reasonable price.

It is available in multiple capacities, from 16GB to half a terabyte, or to be precise, 512GB; it complies with all the latest standards such as A1, U3, V30, and most importantly, it delivers sequential read speeds of up to 95MBps and sequential write speeds of up to 45MBps.
Moreover, it comes with a five-year warranty and provides multiple protection features, such as temperature and water resistance, shockproof and x-ray proof characteristics, and so on.

When talking about the longevity of Transcend 300S micro SD card, you should know that it can sustain more than 10000 insertions (removal cycles) and that it delivers a fairly solid build that should keep it with you for a long time.

All in all, if you are after the best micro SD card in the mainstream market, you may be sure that this one will not disappoint you.

  • Affordable
  • Five-year warranty
  • Good value for the money
  • A lot of protective features
  • It comes with the RecoveRx software
  • Not the fastest performance

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Kingston Canvas React Plus

A Micro SD Dream Card

kingston 128gb canvas react plus (mlpmr2128gb)
Stumbling upon perfection and even more importantly, recognizing it, might be a hard task to manage. However, with certain devices, you are getting exactly that, or at least the nearest feeling to that, and one of such products is the Kingston Canvas React Plus Micro SD card that offers excellent build quality and more importantly, exceptional performance.

To be exact, this card supports excellent sequential write speed of up to 165MBps and even better sequential read speed of 285MBps, that make it a great choice for work with 8K materials and even for professional use. It is available in 64GB, 128GB and 256GB capacity and it supports UHS-II, V90, U3 and A1 standards.

In other words, the best micro SD card is here, and all you need to do to get it is to dig pretty deep into your pocket, since its price is a bit heavy for a micro SD card.

  • Good-quality build
  • Super-fast performance
  • UHS-II, V90, and U3 compatible
  • Professional performance
  • Pricey
  • Available in only three different capacities

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Lexar Professional 667x microSDXC

A Speedy Gonzales in a MicroSD Uniform

lexar professional 667x microsdxc
Lexar Professional 667x microSDXC card is a device that offers great sequential read/write speeds (100MBps/90MBps), combined with a lifetime warranty and decent durability.

It is compliant with numerous speed standards such as U3 and V30, as well as A2 that guarantees for the same sequential writing speeds as an A1 standard, but offers much faster random read/writes. Moreover, Lexar Professional 667x microSDXC cards come in three capacities (64GB, 128GB and 256GB) and are supplied with a very handy SD adapter.

Unfortunately, although the level of the card performance is great, that cannot be said about its quality control that obviously degraded from the past time, and even though the number of complaints isn’t too big, they still exist, which wasn’t that often the case with previous card generations.

Of course, that doesn’t change the fact that Lexar Professional 667x microSDXC is still one of the best microSD cards available; however, it is not as flawless as Lexar used to be.

  • Fast performance
  • Compliance with A2 standard
  • Lifetime warranty
  • Not the best quality control

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Whatever microSD card you will choose, it will be a nice bonus for your device. But if you choose the best one then you will have a chance to experience its excellent performance when recording a video or capturing a photo.

About author

TheTechLounge editorial team consists of versatile tech enthusiasts. Each of us specializes in the specific area (from photography to virtual reality).
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