Largest microSD cards: Quick menu
When it comes to expanding the storage capacity of your devices, choosing the largest microSD card available is a practical decision. Whether it's for one of the best ereader, best handheld gaming console, best action camera, or any other device, having ample storage space is essential for a seamless user experience. The right microSD card can accommodate a larger number of books, games, videos, and other data, ensuring that you never run out of space for your important files.
However, it's important to navigate the market with caution. The internet is rife with claims of high-capacity microSD cards that, unfortunately, fail to deliver on their promises. This is why understanding the distinction between high-capacity and high-quality is crucial. The best microSD card not only offers ample storage but also maintains the integrity of your data.
Beyond capacity, the performance of a microSD card, particularly its read/write speeds, is another critical factor. These speeds can vary and are often influenced by the device you are using. For instance, when looking for a microSD card for the best camera, speed becomes a significant consideration.
Our guide focuses on helping you identify the largest microSD card options that combine both large capacity and reliable performance. We prioritize selections from reputable manufacturers and include insights from our benchmark tests wherever possible. This approach helps ensure that you find a microSD card that not only meets your storage needs but also supports your devices effectively, be it the best laptop for photo editing or exploring the best Photoshop alternatives.
The largest microSD cards of 2024 in full:
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Below you'll find full write-ups for each of the largest microSD cards in our list. We've tested each one extensively, so you can be sure that our recommendations can be trusted.
The largest microSD card overall
How would you like a microSD card that's big enough for 350 DVDs, 1 million floppy disks, 70 Blu-rays, 15,000 Zip disks or a colossal five years of continuous video recording?
The semiconductor giant Micron has reached that capacity by using its 176-layer 3D NAND technology (similar to that used in SSDs) to create the world's highest-capacity microSD card, the MTSD1T5ANC8MS-1WT, also known as the i400.
At the time of writing, the i400 is only offered by a limited number of wholesalers, such as Mouser, Arrow and Avnet. Currently the best deal is offered by Newark who at the time of writing offer a single i400 for $485.33. Discounts are available for bulk orders but this still means the card costs more than its weight in diamonds.
Since Micron's announcement in 2022 they have yet to confirm the actual read/write speed of the i400, which may be an issue if you plan to use it for high performance tasks. Once formatted, the microSD card also has a capacity closer to 1.4 TB.
The stated claim of being able to handle five years of video recording is also qualified in the manufacturer's press material to state that it can only store four months worth of HD video - the five years is the amount of video it can process. This ties in with Micron's claim of a 2 million hour MTTF (Mean Time to Failure).
This is a bold claim and Micron are a well-known microSD card manufacturer. Still at the time of writing there aren't many in-depth reviews of the i400 with detailed benchmarks so make sure to do your own research before buying.
