If you told me two years ago that in 2024 I’d be using a WD Black SN770M as a Steam Deck SSD replacement I’d probably have rolled my eyes furiously into the back of my head. I mean, sure, I’m definitely the kind of player who fills gaming handhelds and PCs to the brim with games then acts surprised when I get slapped with an out of storage message, but I was convinced 512GB was more than enough space. Not only is that nowhere near enough room to take all my favorite adventures on the go, but the SN770M has effectively solved my portable drive dilemmas.
Before we dive in, it’s worth expanding on why the WD Black SN770M is considered to be a Steam Deck SSD upgrade option. The answer to that can be found within the best gaming handheld contender’s innards, as the device uses a M.2 2230 NVMe slot. Technically, you could slot a longer gaming SSD into the interface, but ultimately, there’s only room for 22 x 30mm drives inside the portable PC, hence the name.
