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Steam Deck storage

There are two ways to give a Steam Deck more room: a microSD card in the slot, or a new SSD inside the case. The card is the simple one; the SSD is a repair job.

Card or SSD?

  • A microSD card simply goes in the card slot that every Steam Deck has.
  • A new internal SSD must be the small M.2 2230 size. Changing it means opening the case: follow a step-by-step guide such as the iFixit one listed below.
  • If you buy a used Steam Deck, check which model and capacity it is: the line-up changed over the years, as the facts below show.

Good to know

  • The Steam Deck OLED comes with a 512 GB or a 1 TB NVMe SSD. The LCD model came in 64 GB (eMMC), 256 GB and 512 GB versions.1,2,3
  • Valve stopped making the last Steam Deck LCD, the 256 GB model, in December 2025.2,4
  • The internal SSD uses the small M.2 2230 size.2,5
  • Every Steam Deck has a microSD slot that takes microSD, microSDHC and microSDXC cards.1,2

How we checked this page

Checked on October 17, 2026. We kept a fact only when two independent publishers agree, and each one is numbered to its sources below. Sizes change with game updates, so each one keeps its year. We never write a price. This page was written with an AI assistant and checked against the sources below.

Sources

  1. Steam Deck tech specs, Valve
  2. Steam Deck, Wikipedia
  3. A new OLED version of the Steam Deck has been announced, VGC
  4. Valve discontinuing the last Steam Deck LCD model, GamingOnLinux
  5. Steam Deck SSD replacement, iFixit