The progress in microSD cards in recent years has amazed me, with huge capacities crammed into the tiniest of cards. It's kind of unbelievable that a 1TB microSD card actually exists, and even harder to believe that it would be discounted by as much as $140 at Amazon. The SanDisk Extreme 1TB microSD card retails $450 and has been selling for around $440 at Amazon most of the time since its release earlier this year. But today it has seen its biggest price drop to date, falling to only $299.99 there. With a third off, that's the sort of drop we'd hope to see during Black Friday, yet you can snag it right now. There's no telling when the discount might end, so if you want the most capacious card out there, you want to snap this up now.

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SanDisk Extreme 1TB microSD Card

This microSD card has a humongous capacity, read speeds up to 160 MB/s and write speeds up to 90 MB/s. You'll be able to transfer even high-res images and 4K videos without delay, and the card is fast enough to keep up even with burst shooting.

$299.99 $439.99 $140 off

This microSD card has read speeds up to 160 MB/s and write speeds up to 90 MB/s. You'll be able to transfer even high-resolution images and 4K videos without much delay, and the card is fast enough to keep up even with burst shooting. This is a UHS Class 3 card (Ultra High Speed) with an A2 rating. Most cards we post deals on are rated A1 and Class 10. This one is better in both regards and is generally reserved for professionals. The card is designed to resist extreme temperatures, water, shock, and X-rays. It has 4.5 out of stars based on over 2,700 customer reviews. Some devices cannot handle a microSD card this large, so make sure your device is compatible before purchasing. If 1TB is too much for your device, other iterations of this card are available, so definitely check those out.

SanDisk's Extreme microSD cards made the cut on our lists of the best microSD cards for Android and the best microSD cards for Nintendo Switch. We doubt we'll see a better deal than this on Black Friday, but you can follow along with our coverage to make sure you stay up to speed with all of the best deals.

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