Anyone know if those Samsung Miscro sd cards work well on the Steam Deck?

Also anyone can tell me the difference in performance between the white one and the blue one??

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I have Evo plus. Works fine.
- Same. No issues so far.
- Great, ty. 👍

Select is the one exclusive for Amazon, my understanding is that it’s meant to help with counterfeit ones, as only Amazon has them. Very good cards either way.
Not sure how it compares price wise right now, but look at the Amazon basics ones too: they’re made by the same company that bought Lexar and makes the emmc inside the 64gb Deck. Mine has been going strong for about a year now. Speed wise they’re essentially the same: the standard used in the Deck tops out at 104 megabytes per second, so any claims of extra speed are just marketing.
- BTW is normal that the free space on the 64 Steam Deck is actually 40-something gb?? I mean 20gb of OS?
  
  [This comment has been deleted by an automated system]
  
  Additionally, to what was already said, the size of storage is giving in Decimal (1000B based) while after formatting it is often shown in Binary (1024B based), which makes the storage look smaller, which it isn't.
  And the most of the storage is coming from software stored in your home, not the OS itself. The OS only occupies around 3.3GB on the 5GB root partition:
  undefined
  
  /dev/nvme0n1p4 5.0G 3.3G 1.5G 69% / /dev/nvme0n1p6 230M 41M 173M 19% /var /dev/nvme0n1p8 466G 115G 351G 25% /home
  
  Its on the low side but still within reason. Its not just an OS, it's an OS, a full steam install, a web browser( actually 2 of them because steam also packs an embedded browser), a desktop environment, HD animations, HD wallpapers (several of them) and it adds up quick.
  
  Just buy an nvme SSD, the one in the deck is really easy to replace (if you have a good screwdriver, like in the ifixit kit/ other phone repair kits)
  
  Yep. The os isn’t tiny, plus there’s all sorts of extra stuff. For example 1gb is gone on every Deck because that’s reserved for swap… and then shader cache sneaks in and depending on the game you might run out of space in no time.
  
  I don't even know why they have a 64GB version.
  This is the one I use. I believe you want to look for the "A2" SD card. No issues with speed or reliability yet. I play ges like Elden Ring and RDR2.
  https://a.co/d/7pFQpEB
  
  Shader cache takes a big chunk of the available space
  
  IIRC, it was 20GB of OS at launch, but they shrunk it. Now it's a little over 10GB.

Came here to advise running F3 to test the sd card, and make sure it's legit.
Turns out the Steam Deck does it on it's own when you use the steam UI formatter, Beautiful
- That’s awesome that the Steam Deck does a check like that.

I have had good luck with these. One has been in my Deck for 6+ months, with about 1/2 my library on it. Load speeds etc. have been decent.

They are both exactly the same, Select is just a rebrand of Amazon. Don't buy Select unless it is cheaper. And yes they work fine, have the Evo Plus 512.
- Why shouldn't they buy the select? Isn't the whole purpose of it being exclusive to prevent people from getting fake cards?
  
  samsung has a tool that can verify the legitimacy of cards. if it's counterfeit send it back
  
  If Amazon is unable to make sure you got no fake Plus if they are the seller, how in the world would they make sure the Select is no fake?

I have the second one in that list, and while I've got an ROG ally rather than a steam deck, I can tell you it performs quite well. I'm pretty sure these are often recommended for the deck for all the same reasons.
Load times are a little slower for bigger games, but that's usually just when starting the game up.

I've got 3 of the 512GB Evo Plus ones on rotation in the Deck, for my Steam library/game-hoarding-addiction.
I got one of the first batch of UK Steam Decks, and have been running those SD cards since whenever that was. No issues so far.

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