Running out of space on your Steam Deck is basically a rite of passage. You start off thinking 512GB is plenty, then suddenly you’ve got five AAA games, six indies, and no room left for screenshots. Been there. That’s why I always keep a high-speed microSD card loaded up and ready to go. Undoubtedly, a microSD card is one of the most important Steam Deck accessories you can pick up during big sale events like this.
Some of the best Steam Deck micro SD cards I’ve tested are on sale right now during the Amazon Spring Sale, and they’re not the usual knockoff brands with sketchy performance. These are fast, reliable, and actually built to handle gaming loads, big installs, and 4K content. Here’s what I recommend if you want to expand your storage without bottlenecking your Deck.
This is my personal go-to. It’s made specifically for portable gaming devices like the Steam Deck, Switch, and ROG Ally. The A2 rating means apps and games load faster, and it’s got enough speed (160MB/s read, 100MB/s write) to keep your games from lagging when stored externally. For the price? This is a steal. I’d grab two if I wasn’t already full.
A close second, especially if you want more ruggedness and flexibility. It’s also A2-rated, with V30 support for 4K video recording, and built to survive drops, water, X-rays, and whatever else your Steam Deck goes through in your bag. You can also throw this into a phone, drone, or camera without worry. It’s the “do everything” option.
Not ready for the 1TB jump? No shame in that. This 512GB card from Samsung is blazing fast (180MB/s read, 130MB/s write) and handles Steam Deck loads like a champ. Plus, it comes with a USB card reader in the UK version, which is a nice little bonus. This one’s a great mid-range pick with premium speed. It’s also RPS’ top microSD pick for Steam Deck, which is a nice little confidence boost if I do say so myself.
RPS’ top pick again, and the speed king. I recommend this one if you want zero compromise. It’s built like a tank, rated for 4K UHD video, has an A2 app rating, and handles high-end game storage without flinching. It’s the most expensive of the bunch, but if you want the best performance with no tradeoffs, this is it.