Even an idiot like me can upgrade the Steam Deck SSD, and this deep Black Friday deal on a 1 TB Crucial drive is a great chance to do it yourself

pcgamer.com:

Update November 30: The Crucial P310 remains at its eyewatering Black Friday deal price of 70 clams, so if you've ever considered cracking open your Deck, I say take the plunge. Swapping a Steam Deck screen, sticks, front face plate—really anything pointing toward the user on the device—is going to be next-level hard, but popping off the backplate is a cinch. When I was upgrading my friend's Deck last year, I actually found using the recovery software to install SteamOS on the new boot drive to be way more aggravating than the physical side of the process, but we got it done regardless. While you're cracking the bad boy open, why not also take advantage of JSAUX's sale on its transparent Steam Deck backplates? I have the atomic purple one and love the way it looks.

Price change: New deal!
Crucial P310 | 1 TB | NVMe | PCIe 4.0 | 7,100 MB/s read | 6,000 MB/s write | $171.99$69.99 at Amazon (save $102)
This is a huge saving on a 2230 format SSD that performs pretty nicely, as we found when we reviewed the 2 TB version. Crucial's performance claims are very much peak values and the real-world numbers are generally lower, but at this price, it's a great way to boost your Steam Deck's storage and get a handy speed bump.

Hey, look, I get it: even though people say it's simple, cracking open your Steam Deck and upgrading its SSD can seem pretty foreboding. You've gotta wedge a guitar pick in there to pry off the plastic case, tuck ribbon cables out the way, disconnect the battery, and so on and so forth. What if something happens? What if that delicate ribbon cable breaks? What if you dislodge something? What if you spill tea in there? What if a flock of seagulls comes and carries your Deck away, never to return?

Terrifying thoughts all, but let me reassure you: I'm a bona fide idiot and I had zero trouble replacing the puny 512 GB default SSD in my Steam Deck a couple of months ago (and if you need a helping hand, you can check out our handy Steam Deck SSD replacement