The Sandisk Extreme 1TB is an outlier, a one-of-a-kind, one that will satiate, even temporarily, the thirst for massive storage capacity that a growing audience demands. Professionals that require storage on the go will love the flexibility and the performance of this card; price is likely to be a minor factor in their decision process especially when you factor in the time saved from shuffling lower capacity cards around.

SanDisk MicroSD Card: What’s The Difference? A1 vs A2 SanDisk MicroSD Card: What’s The Difference?

These standards cover the speed of the interface between the microSD card and your device (or memory card reader), as this can also limit the maximum speed of data transfers between the two. UHS-I has a maximum speed of 104MB/sec, and you’ll usually see a Roman numeral “I” beneath the U1 logo. UHS-II takes that up to 156MB/sec (with data transferring in both directions) or 312MB/sec (with data transferring in only one direction). As a result, those hunting for the perfect balance of price and performance don’t need to look any further, and spending just a little more will get you your card bundled with Samsung’s excellent 160MB/sec USB card reader. What more could you want?

Which is the best microSD card for you?

Since Apple’s IOS and Google’s Android operating systems hit the mobile technology market over 10 years ago, being able to give users the ability to add or remove additional storage capacity when desired, has been a major difference between the two systems. A microSD card slot is offered in various devices which operate using Android, allowing users to add an adjustable quantity of storage. Thanks to Android’s adoptable storage device capability, microSD cards have rapidly been adopted by users globally. One final thing we need to make clear is that speeds will depend on your microSD card reader. The reader built into your average laptop might not be capable of reading from or writing to the fastest cards at their full speed, and we’ve found huge variations in external readers, even those bundled with high-performance cards. If you’re investing in one of the faster microSD cards, grab the matching adaptor from the same manufacturer, or from a credible manufacturer like Lexar, SanDisk, Kingston or Integral. That goes double for UHS-II cards. What if I’m buying for an action camera or dashcam? In theory, the Micron C200 is the only competitor to the Sandisk Extreme 1TB; the problem is that there are none available anywhere. Clearly there is a supply issue with Micron and we’re not sure why. Two smaller players (Silicon Power and Integral) have confirmed that they will launch 1TB microSDXC cards in 2020 but unlike Sandisk or Micron, they don’t control the production of the memory chip that goes inside the card. We tested the Sandisk Extreme 1TB with a microSD card reader, on our Dell Latitude 7490 laptop. However, performance, as always, will depend on what card reader you use.

SanDisk 512GB Extreme Micro SD (SDXC) Card U3 - MemoryCow SanDisk 512GB Extreme Micro SD (SDXC) Card U3 - MemoryCow

Capture fast-action photos or shoot 4K UHD video with write speeds of up to 90MB/s. The SanDisk Extreme microSDXC UHS-I Card lets you shoot more and faster. Great for Capturing 4K UHD Video. Custom made and designed products such as flash memory products with custom logo’s on them. E,g USB flash drives and memory cards with your own logo From this diagram, and in reference to IOPS, it is clear to see that the A2 provides an extraordinary gain. The minimum read performance is up by 2.7x, at the same time as providing 4x faster minimum write speeds.Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme® microSD card’s A2 Specification. Often, fast sequential speeds come at the expense of random read/write speeds, but the A2-class 1066x is an exception; it’s not as speedy as the Integral Ultima Pro Professional High-Speed card below, but it’s faster than the SanDisk Extreme Pro and Samsung Evo Plus on this count, making it a fine all-round performer. If you’re looking for a card that can run apps or cover video on your mid-range or high-end smartphone, you won’t get much better than this.