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.
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:
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.
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.
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.
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.