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Best microSD cards for Amazon Fire HD 8 in 2022

Whether your vacation journey takes place in a car, plane, or train, the Amazon Fire HD 8 tablet with a microSD card can help the hours fly by. With streaming video apps offering video downloads and high-quality game assets taking more space than ever, you may find that the 64GB of storage on the Fire HD 8 isn't quite enough, and that's only if you bought the biggest one. Luckily you can upgrade your tablet with one of these microSD cards, so you can download away and be ready to keep your mind occupied as the miles roll by.

Download more on your Fire HD 8 with microSD storage

What are the best microSD cards for the new Fire HD 8 tablet?

Normally tablets tend to only support microSD cards up to 128GB, but the Fire HD 8 supports up to a terabyte, so you can as big or as little of a card as you need to fit your budget and needs. When picking a microSD card, your focus should be on speed, capacity, and quality in that order. If you don't know what size you really need, the Samsung EVO Select 128GB is a good place to start. It has enough capacity to hold dozens of films and TV episodes with plenty of extra room for music, pictures, or apps.

If you prefer to go bigger, the Lexar 633x 512GB card will give you half a terabyte of storage for less than most 256GB cards, while still being a name-brand card with a name-brand warranty attached to it. Though Amazon's Fire tablets are not only some of the best cheap Android tablets, but also are some of the best Android tablets period, it never hurts to have more storage. Keep in mind it's always better to buy a little bigger built-in storage than you think you need than to buy a card, completely fill it up, and then have to hassle with buying another card and getting everything transferred over to it.

What all those symbols on a microSD card mean — and why they don't always matter

The top of a microSD card's minimal space is covered from edge to edge with manufacturer branding, and then this weird hodge-podge of certifications and symbols. Of course, many of these symbols mean the same things, and almost all of the cards you'll want to buy have the same symbols, but they can be useful in ruling cards out quickly while buying.

  • Video Speed Class — Indicated by a stylized V followed by numbers from 6 to 90, this class is one of the newer classification systems and was developed specifically for shooting ultra-high-definition video. For example, V30 starts at 30MB/s write speed, V60 starts at 60MB/s write speed, and V90 starts at 90MB/s, but on the Fire HD 8, anything over V30 is overkill.
  • UHS Speed Class — Indicated by a 1, 2, or 3 inside a U, this class is still used on most cards today. U1 starts at 10MB/s write speed, U3 starts at 30MB/s write speed, and both are perfectly adequate for your new tablet.
  • Speed Class — Indicated by a number inside of a C, this was the original classification system for SD cards, and almost all cards today are beyond the top speed here of 10MB/s. So if you see 8 or lower, run, don't walk away!

Notice that all these specifications focus on write speed. Read speed is almost always faster than write speed, so if you see a card that only mentions a "transfer speed" of 100 MB/s but is a V30 card, we can infer that the read speed is 100 MB/s and the write speed is at least 30 MB/s. Higher write speeds will only really be important on very high-end cameras that record in 4K. Your Fire HD likely will never fully saturate a U3 card, but it's nice to have the headroom.

Ara Wagoner was a staff writer at Android Central. She themes phones and pokes YouTube Music with a stick. When she's not writing about cases, Chromebooks, or customization, she's wandering around Walt Disney World. If you see her without headphones, RUN. You can follow her on Twitter at @arawagco.

With contributions from