Since Valve doesn't sell models of its popular Steam Deck handheld gaming PC with SSDs larger than 512GB, you'll need to purchase extra storage solutions if you want more space for your games. One way to do this is to get an M.2 2230 NVMe SSD larger than the one you got your Deck with and use it as a replacement drive. Sabrent's premier Rocket 2230 SSD has quickly become one of the best SSDs for Steam Deck thanks to its competitive price and excellent transfer speeds up to 5GB/s, and right now, the 1TB variant is available for its lowest-ever price of $109.99 (normally $159.99) thanks to an amazing deal.
Alternatively, you could go with the 256GB or 512GB SKUs of the SSD, which are both on sale as well. The former is 10% off at $44.99 (from $49.99), while the latter is 15% off at $76.49 (from $89.99). These are solid discounts, though the bang-for-your-buck value of the 31% off 1TB version is greater.
Note that while the Sabrent Rocket 2230 SSD is marketed primarily as a Steam Deck drive, Valve's handheld isn't the only device that's compatible with this class of SSD. You could also use it with multiple different Microsoft Surface systems, a variety of laptops from manufacturers like Dell, and even ASUS' Steam Deck competitor, the ROG Ally.
Replacing the Steam Deck's SSD with Sabrent's is a fairly simple process, though it involves disconnecting its battery and reinstalling SteamOS. I recommend watching Sabrent's videos on the upgrade process and SteamOS reimaging so you know what to do.
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