this post was submitted on 30 Jan 2025
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Steam Deck

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Could anyone please suggest a good micro SD card that is reasonably priced and is great for the steam deck? You go to Amazon and you find a gazillion brand with many different prices. Plus all the horror stories I've seen online with all the fake storage people buy from Amazon. So, if you guys have a suggestion I'd really appreciate some links/names. I'm open for best buy and micro center and even Walmart if I needed to. I'm looking for a 1TB card and I don't care about the brand as long as it works well. Thank you all in advance.

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[–] [email protected] 12 points 1 day ago* (last edited 1 day ago) (3 children)

So, the SD Association is absolutely fucking insane when it comes to giving labels to literally anything.

The Steam Deck supports UHS-1 microSD cards.
That's the name of the bus. There'salso UHS-2 and UHS-3, but they're backwards compatible with UHS-1, so that's whatever.

Speeds...
Some cards used speed "classes", like Class 10...
There's also U1 or U3 speeds (which is a speed rating independent of the bus. (A U3 cards is probably a UHS-1 card.
Some have a speed rated with a V, like V10, V30, etc.
They often have multiple labels too.
These can all be used to label the speed of a UHS-1 card:
UHS Speed Class

  • U1: 10 MB/s minimum write speed.
  • U3: 30 MB/s minimum write speed.

Video Speed Class

  • V6: 6 MB/s minimum write speed.
  • V10: 10 MB/s minimum write speed.
  • V30: 30 MB/s minimum write speed.
  • V60: 60 MB/s minimum write speed.
  • V90: 90 MB/s minimum write speed.

Class 10

  • Class 10: 10 MB/s minimum write speed (legacy).

Anyway, U3 is basically the same as a V30.
U3/V30 would be the minimum I'd get for the Deck. Price being the deciding factor for the rest.
I don't really care if the card ever fails, so brand was (mostly) irrelevant in my choice.

[–] [email protected] 3 points 22 hours ago (2 children)

That's very annoying how complicated it is. Ok, U3 or V30. What about the A? Is it A1? A2? Or does that not matter.

[–] [email protected] 2 points 14 hours ago (1 children)

So, A1/A2 is yet another scale they invented because, why not.
A2 is supposed to have more IOPS than A1, although in benchmarks, some A1s perform better.
I wouldn't worry too much about it tbh.

[–] [email protected] 1 points 14 hours ago

Awesome. I appreciate the input.