Most microSD playing cards are quick sufficient for enhancing cupboard space and making easy file transfers, however some present somewhat extra worth than others. In case you’ve obtained a tool that also accepts microSD playing cards — whether or not it’s a gaming handheld, a touch cam, a drone or an Android tablet — we’ve scoured the market and put greater than a dozen high contenders by way of a variety of benchmark assessments. You will discover our high suggestions under, alongside some basic buying recommendation earlier than you seize one.
What to search for in a microSD card
Capability
The very first thing to determine when shopping for a microSD card is how a lot cupboard space you want. Fashionable playing cards are normally obtainable in sizes starting from 32GB to 512GB, whereas an rising quantity can be found in 1TB as properly. 2TB playing cards from respected producers are getting closer however aren’t extensively obtainable simply but.
For many, a 128GB or 256GB mannequin needs to be the candy spot between worth and cupboard space. However in case you want extra room — say, for stashing a bunch of video games on a Steam Deck — a 512GB or better card may make extra sense and sometimes gives a greater cost-per-GB ratio. As of late, you could find an honest 128GB card for round $15 or much less, an excellent 256GB card for lower than $30 and a stable 512GB card for lower than $40 (although many value nearer to $50 or $60). There’s a starker enhance once you go as much as 1TB playing cards, which generally value nearer to $100.
Notice {that a} microSD card’s efficiency might differ relying on what capability you purchase. SanDisk says its 128GB Extreme card delivers sequential write speeds as much as 90 MB/s, for instance, whereas the higher-capacity fashions in the identical line provide as much as 130 MB/s.
After we discuss microSD playing cards immediately, we normally check with playing cards that use the microSDXC (eXtended Capacity) standard, which have a capability between 32GB and 2TB. Your gadget must assist this for it to work with a microSDXC card. It will virtually by no means be a difficulty as of late, however some older units (a Nintendo 3DS, as an example) are solely appropriate with microSDHC (Excessive Capability) playing cards, which vary from 2GB to 32GB.
Learn and write speeds
MicroSD playing cards are primarily judged on their learn and write speeds, that are normally measured in megabytes per second (MB/s). Usually, most microSD playing cards have quicker learn speeds than write speeds.
These metrics can then be damaged down into sequential and random efficiency. Sequential learn and write speeds matter once you’re attempting to entry or save lengthy, fixed streams of information, comparable to opening a big video or copying an enormous batch of information from a PC. If you wish to use a microSD card for media storage, that is notably vital. Random efficiency, in the meantime, is about how rapidly a card can learn and write small information scattered all through the gadget.
Since random learn/write speeds are a lot decrease than sequential ones, storage gadget makers have a tendency to not promote them as loudly. However they’re vital in case you use a card with a gaming gadget or a single-board pc just like the Raspberry Pi, the place it typically has to quickly save and entry small bits of information in random places.
Velocity rankings
In case you take a look at a microSD card, you’ll see a buffet of numbers, letters and symbols. Most of those check with the cardboard’s speed class and efficiency rankings, that are decided by the SD Association.
A card’s Video Velocity Class, or V-rating, particulars its minimal sequential write pace, which is very vital when recording video from a digital camera. It ranges from V6 to V90. Many of the playing cards we examined had a V30 ranking, so that they have a sequential write pace of no less than 30 MB/s. This needs to be sufficient to assist as much as 4K video at decrease bitrates. Greater-rated V60 and V90 playing cards are normally higher for capturing 8K, however they arrive at a a lot greater value.
The UHS Velocity Class, or U-rating, additionally refers to a card’s minimal sequential write pace. It is available in two varieties: U3, which mandates a minimal of 30 MB/s, and U1, which is rated for 10 MB/s.
The older Velocity Class ranking overlaps with the opposite two programs. It’s signified by a C image and goes from Class 2 to Class 10, with the quantity (once more) indicating minimal sequential write pace. This ranking is much less related these days, however you should still see a “C10” emblem on some playing cards.
The Software Efficiency spec, marked by an An emblem, is an indicator of random learn/write speeds. That is measured in IOPS, or enter/output operations per second, reasonably than MB/s. There are two classes right here: A1 playing cards provide a minimal random learn pace of 1,500 IOPS and a minimal random write pace of 500 IOPS, whereas A2 playing cards bump these as much as 4,000 IOPS and a couple of,000 IOPS, respectively. Each rankings additionally assure sequential write speeds of no less than 10 MB/s.
To maintain it easy, most individuals ought to search for a card with V30, U3 and A2 rankings. It’s completely doable to get a stable card with out these: A U1 card could be value it in case you simply want an affordable, high-capacity possibility, for instance. V60 and V90 playing cards are value a glance in case you’re severe about capturing high-resolution images and video as properly. However general, playing cards with the certifications above ought to present one of the best mix of worth and efficiency immediately.
It’s vital to emphasise that these rankings are baselines. Most V30 playing cards provide considerably greater write speeds than 30 MB/s, as an example, and a few A1 playing cards can outperform some A2 fashions in follow. The speeds marketed by producers aren’t at all times one hundred pc correct, both: Generally the cardboard might be slower in real-world use, different instances it might really be a bit quicker.
UHS bus speeds
The opposite spec to notice is the cardboard’s bus interface. Most microSD playing cards obtainable immediately are UHS-I, which have a theoretical most pace of 104 MB/s. There are additionally UHS-II playing cards, which have an additional row of pins on the again and may attain as much as 312 MB/s. (A UHS-III commonplace exists as properly however hasn’t seen large adoption.) These are labeled on the cardboard with a Roman numeral I or II.
The quickest microSD playing cards you should buy proper now are UHS-II playing cards, they usually’re normally those with V60 or V90 rankings. In case you shoot a lot of 4K to 8K video or regularly use burst mode to seize extremely high-res images, the efficiency positive factors of an excellent UHS-II card can prevent time.
However these are way more costly than UHS-I playing cards: This 128GB Lexar Professional Gold mannequin, as an example, is a relative cut price at $40. Whereas that is lower than many UHS-II fashions we’ve seen prior to now, it is nonetheless greater than double the everyday worth of our high decide talked about under. You want a tool that’s appropriate with the UHS-II interface to see any advantages, too, and inventory for UHS-II playing cards is usually spottier. For now, the upper speeds aren’t well worth the worth premium for most individuals, so we caught principally to UHS-I playing cards right here.
We’ll additionally be aware Samsung’s announcement earlier this yr of a brand new 256GB microSD card based mostly on a completely completely different commonplace known as SD Categorical. That is theoretically a lot quicker than any UHS-I or UHS-II possibility: Samsung claims this particular mannequin can attain sequential learn speeds as much as a whopping 800 MB/s. For context, that’d be faster than some older SSDs. SD Categorical has technically been around for a number of years however hasn’t seen large adoption, so precisely how this card performs in actuality — and the way a lot it’ll value — stays to be seen. We’ll check the gadget as soon as it turns into obtainable, which Samsung says might be someday later in 2024.
A be aware on card readers, the Nintendo Swap and Steam Deck
Whereas the UHS-I spec has a theoretical most of 104 MB/s, some UHS-I playing cards can exceed that pace by way of proprietary extensions. You want a appropriate card reader and host gadget to benefit from that further efficiency, although. In case you discover a UHS-I card promoting speeds greater than 104 MB/s, that is what’s happening. You may see these limits in motion with a Nintendo Swap or Steam Deck: Both of those gaming units assist the UHS-I interface and don’t transcend its official pace, flattening any sequential positive factors some playing cards might have elsewhere. The broader takeaway: Your microSD card will solely be as quick because the slowest hyperlink in your chain.
Guarantee
Many microSD playing cards are designed to be sturdy, with safety from water, excessive temperatures, X-rays and drops. Nonetheless, in case of disaster, a protracted guarantee is at all times good to have. Many producers provide lifetime or 10-year restricted warranties, although we’ve observed that “endurance” playing cards marketed to face up to extra hours of writing are normally lined for a shorter time period. For instance, Samsung’s Pro Endurance, a mannequin geared toward safety cameras and different monitoring units, comes with a five-year guarantee.
Avoiding counterfeits
The reminiscence card market has had a specific drawback with scammers promoting faux merchandise. To protect towards this, solely purchase from a recognized model and a good retailer comparable to Finest Purchase, B&H Photograph or Adorama. In case you store at Amazon, solely purchase if the shipper and vendor is Amazon.com. (Although a handful of customers have reported receiving counterfeits even from Amazon immediately prior to now.) Keep in mind: If a worth appears too good to be true, it in all probability is. Be cautious of any retailer providing considerably a lower cost than others.
When you obtain a card, test its packaging for any irregularities. You may run benchmark assessments like CrystalDiskMark or BlackMagic Disk Speed Test to confirm its speeds aren’t drastically decrease than what’s marketed (or doable, given its specs). You too can use software program that’s designed to confirm the true capability and efficiency of your card, comparable to H2testw and FakeFlashTest.
How we examined
We put 13 microSD playing cards by way of a collection of assessments to confirm their sequential and random efficiency. These included benchmarks like CrystalDiskMark, BlackMagic Disk Speed Test, ATTO Disk Benchmark and AJA System Test, in addition to a couple of “real-world” assessments. We copied and pasted a small folder of images about 1.15GB in dimension to and from every card, then did the identical with a bigger 12.2GB folder containing a number of file varieties and subfolders, timing the method every time. We additionally checked how every card carried out on the Steam Deck, downloading video games of various sizes — together with Stardew Valley, Aperture Desk Job, Metal Gear Rising: Revengeance and Apex Legends — then timing how lengthy it took to launch every sport and cargo save information.
We used a Kingston USB 3.2 UHS-II reader to check every card on each Home windows 11 and macOS Sonoma. For the previous, we used an Alienware gaming PC with an Intel Core i9-10900F, Nvidia GeForce RTX 3080 GPU, 32GB of RAM and a 1TB SSD. For the latter, we used a 2021 16-inch MacBook Professional with an Apple M1 Professional chip, 16GB of RAM and a 512GB SSD. To make use of our card reader on the MacBook, we used Apple’s USB-C Digital AV Multiport Adapter.
We examined the 128GB model of every card wherever doable, although for a couple of playing cards — SanDisk’s Excessive and Samsung’s Professional Plus and Professional Final — we had been solely capable of check their 256GB fashions. We additionally reformatted every card earlier than testing with the SD Affiliation’s Memory Card Formatter tool.
Finest microSD playing cards of 2024
Photograph by Jeff Dunn / Engadget
Storage capability: 128GB, 256GB, 512GB, 1TB | Velocity courses: U3, V30, A2, Class 10 | Guarantee: 10-year restricted
The Samsung Pro Plus was almost the quickest card we examined when it comes to sequential write efficiency (round 130 MB/s in CrystalDiskMark) and was a detailed second when it comes to random learn/write speeds, so it ought to work nice whether or not you’re shopping for for a digital camera, Android pill or gaming handheld. Unsurprisingly, it has all of the requisite rankings: U3, V30 and A2. Its sequential learn efficiency (round 165 MB/s) isn’t fairly as fast as a few of the different playing cards under, so it isn’t absolutely the quickest for accessing massive information saved in your card, however the distinction is small in real-world use.
The primary motive the Professional Plus tops our checklist is as a result of it delivers these robust speeds at a comparatively reasonably priced worth. The cardboard initially began at $19 for 128GB, $30 for 256GB and $60 for 512GB, however previous gross sales have introduced these fashions as little as $11, $18 and $29, respectively. When it’s that low cost, the Professional Plus makes most competing microSD playing cards redundant. Samsung additionally sells the cardboard with a USB reader that’ll assist it attain its most speeds for a couple of {dollars} extra. In case you want extra space, there’s also a 1TB model that needs to be simply as quick, although that one is presently way more costly at $110. Both means, the cardboard comes with a 10-year restricted guarantee.
In case you choose to purchase the Professional Plus, be sure to get the latest-generation mannequin. Samsung continues to be promoting the prior iteration of the Professional Plus, which seems similar however isn’t as fast. As a substitute, go for the one with sequential learn speeds rated at 180 MB/s and sequential write speeds rated at 130 MB/s. We examined the 256GB model of the newer Professional Plus resulting from inventory points with the 128GB mannequin on the time of testing, however this shouldn’t have a serious impression on real-world efficiency, as Samsung charges each playing cards identically.
- Persistently fast sequential and random learn/write efficiency
- Nice worth
- Available at trusted retailers
- Has a 1TB possibility
- Some friends have barely quicker sequential learn speeds
Photograph by Jeff Dunn / Engadget
Storage capability: 128GB, 256GB, 512GB | Velocity courses: U3, V30, A2, Class 10 | Guarantee: 10-year restricted
The Samsung Pro Ultimate is a step-up mannequin in Samsung’s microSD lineup and, as anticipated, it’s somewhat bit quicker than the Professional Plus throughout the board. Its largest positive factors are in sequential learn speeds, which had been the quickest we examined and averaged near Samsung’s marketed charge charge of 200 MB/s throughout our numerous benchmarks. You’ll want to purchase the cardboard with Samsung’s USB reader to realize that efficiency, however that might be value it in case you frequently transfer information out of your microSD card to a PC. The Professional Final technically led the pack when it got here to sequential write and random learn/write speeds as properly, although the margins there are a lot much less vital in comparison with the Professional Plus and the opposite high UHS-I playing cards we examined.
The primary query is value. In case you see the Professional Final obtainable for a similar worth because the Professional Plus, you would possibly as properly seize it as an alternative. It comes with the identical 10-year guarantee and needs to be equally sturdy. Previous reductions have introduced the 128GB, 256GB and 512GB fashions as little as $15, $25 and $45, respectively; that is nonetheless reasonably priced, however the Professional Plus will virtually at all times be somewhat bit cheaper — and thus a greater worth for many wants, particularly at greater capacities. There is not any 1TB possibility right here, both.
- Quickest microSD card we examined (with applicable USB reader)
- Simply obtainable at trusted retailers
- Professional Plus is healthier worth for many
- No 1TB mannequin
Photograph by Jeff Dunn / Engadget
Storage capability: 64GB, 128GB, 256GB, 512GB, 1TB | Velocity courses: U3, V30, A2, Class 10 | Guarantee: Lifetime restricted
If the Samsung Professional Plus ever jumps too excessive in worth or turns into unavailable, the Kingston Canvas Go Plus is one other robust different. This can be a U3-, V30- and A2-rated card backed by a lifetime restricted guarantee. Its sequential learn speeds trailed solely the Samsung Professional Final throughout CrystalDiskMark, ATTO and the BlackMagic Disk Velocity Take a look at. It successfully tied with SanDisk’s Excessive and Nintendo Swap-branded playing cards in our massive file switch speeds check. Sequential write speeds (simply over 100 MB/s on CrystalDiskMark) are the place it lags behind the Professional Plus, however they need to nonetheless be fast sufficient for a lot of makes use of. Its random learn/write speeds had been solely bested by Samsung’s Professional playing cards in benchmarks, so it’s nonetheless an excellent possibility for apps and video games. The 1TB model can be $20 cheaper than the equal Professional Plus, so it needs to be an honest worth in case you want a lot of area and need to save money. However the different fashions are laborious to justify in case you see them hovering in the identical worth vary as our picks above.
- Quicker sequential write speeds than Professional Plus for a (usually) lower cost than Professional Final
- Lifetime restricted guarantee
- Has a 1TB possibility
- Professional Plus is normally a greater worth for many
- Slower sequential write speeds than picks above
Photograph by Jeff Dunn / Engadget
Storage capability: 64GB, 128GB, 256GB, 512GB, 1TB (“new technology” mannequin solely) | Velocity courses: U3, V30, A2, Class 10 / (64GB) U1, V10, A1, Class 10 | Guarantee: 10-year restricted
The Samsung Evo Select is a transparent step behind our high picks, notably in the case of sequential write speeds (just below 70 MB/s on CrystalDiskMark), so it’s not ultimate for cameras. Nonetheless, it’s completely usable for a lot of use instances — a Nintendo Swap, as an example — and we have beforehand seen its 128GB, 256GB and 512GB fashions fall as little as $10, $14 and $25, respectively. All of these are about on par with the SanDisk Ultra, an oft-recommended cheapo card, regardless of the Evo Choose having greater V30, U3 and A2 rankings. Whereas the Professional Plus has come near these costs, the Evo Choose virtually at all times retails for much less.
Just like the Professional Plus, now you can discover two variations of the Evo Choose: a “commonplace” mannequin with sequential learn speeds rated at 130 MB/s, and a “new generation” model that bumps that spec as much as 160 MB/s. For the reason that level of this advice is to provide you a card that performs properly sufficient for as little as doable, you must get whichever one is cheaper within the capability you need. The brand new mannequin did certainly ship these improved reads in our benchmarks, nevertheless it performs nearly identically in any other case, so you will not lose a lot by saving a couple of dollars with the older technology.
The one large distinction is that the up to date mannequin is the one one obtainable in a 1TB capacity; we have not examined that particular mannequin, however at $80-ish it needs to be value a glance if pricing is your solely concern.
- Typically obtainable for lower cost than Professional Plus
- Stable efficiency in case you simply need a suitable card for reasonable
- Has a 1TB possibility
- Slower than picks above, notably in sequential write and random efficiency benchmarks
Different notable microSD playing cards
Delkin Gadgets Energy
We didn’t use it ourselves, however in case you’re prepared to pay for a extra highly effective UHS-II card constructed for heavy-duty video recording, the Delkin Devices Power has tested well elsewhere and will ship considerably quicker sequential write speeds than our picks above. It’s one of many few UHS-II playing cards we may really discover in inventory, nevertheless it prices a ton, with a 128GB mannequin usually priced round $90.
SanDisk Excessive
The SanDisk Extreme successfully matched the Professional Plus in a couple of of our sequential write assessments and delivered sequential reads about on par with the Canvas Go Plus, however that was partly resulting from us solely having the ability to safe the cardboard’s 256GB mannequin, which is higher-rated than the 128GB model. It’s a effective alternative in case you see it on sale at a good vendor, however its random efficiency lagged behind the Samsung Professional and Kingston playing cards, and it typically prices extra.
SanDisk microSDXC Card for Nintendo Swap
The SanDisk microSDXC Card for Nintendo Switch is one other respectable possibility in case you ever see it obtainable for lower than the Professional Plus and Canvas Go Plus. Its sequential learn speeds had been about the identical because the latter in our benchmarks, however its sequential writes had been barely slower (and farther behind the Professional Plus). Its random learn/writes had been a bit behind in accordance with CrystalDiskMark as properly, and it is typically priced greater than our high decide. SanDisk backs the cardboard with a lifetime guarantee, nevertheless, plus it’s obtainable in a 1TB capacity. Notice that we examined the Apex Legends model of the 128GB card; SanDisk additionally sells a Super Mario model, however we will not say if that one performs any otherwise.
Lexar Skilled 1066x
Equally, the Lexar Professional 1066x is an honest different to the Professional Plus if our essential picks are unavailable. It’s one other V30, U3 and A2 mannequin, and like Samsung’s card, its sequential write speeds had been a bit quicker than the Canvas Go Plus and SanDisk Swap card in our benchmarks. These write speeds weren’t as fast because the Professional Plus, and its sequential reads trailed all three playing cards. Random learn/writes additionally lagged behind the Professional Plus and Canvas Go Plus, and we observed its speeds peak and dip extra noticeably in our file switch check. Nonetheless, it’s not gradual, so relying on its worth, it could be an excellent cut price in case you want quick write speeds for video recording and the like. It’s additionally available in 1TB, plus it comes with a lifetime restricted guarantee.
SanDisk Excessive Professional
The SanDisk Extreme Pro is a rival to the Samsung Professional Final however, as of this writing, is both unavailable at most trusted retailers or priced too excessive by comparability.
PNY Elite-X
The PNY Elite-X typically goes for reasonable and wasn’t too far off the random learn/write efficiency of Samsung’s Professional playing cards in CrystalDiskMark, nevertheless it was properly behind in our sequential assessments.
Current updates
November 2024: We have checked again with this information to make sure our suggestions are nonetheless correct and made mild edits for readability.
August 2024: We’ve up to date this information to notice the just lately launched 1TB fashions for 3 of our high picks: the Samsung Professional Plus, the Kingston Canvas Go Plus and the Samsung Evo Choose. We’ve additionally made certain all pricing particulars are as updated as they are often.
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