Prime Day has a ton of sales on microSD cards. They're perfect for expanding the internal storage of devices like Nintendo Switch.

When I bought my latest phone, it came with 512GB of storage — and I thought that’d be enough. That’s almost ten times as much internal capacity as my first PC! But it’s still not enough, dammit, and I ran out of space loading it up with questionably-obtained TV shows for a long flight.

Another great microSD card for Steam Decks, the SanDisk Ultra, is getting big discounts for Prime Big Deal Days - specifically for its huge 1.5TB version.

MicroSD cards come in tons of different storage capacities but you don't often see super low prices on high capacity options from brands like SanDisk,

Steam Deck and Nintendo Switch owners who want to maximize their storage capacity for cheap shouldn't miss this Amazon deal.

Slotting in a microSD card is also an awful lot easier than the alternative, which is completely replacing the Steam Deck SSD with a bigger one. You can do that, of course, and there might even be a good SSD candidate among the Prime Big Deal Days sales.

Here are the best deals we could find on SSDs, microSD cards and other storage gear from Amazon's October Prime Day sale.

SanDisk's 1.5TB Ultra microSDXC memory card is currently enjoying a nice 40% discount in Amazon's Prime Big Deal Days sale.