Nintendo Switch 2 Storage: microSD Express & Game Sizes

Updated 6 November 2026 · Standard formula, shown below

The Nintendo Switch 2 comes with 256 GB of internal storage, and you can expand it using microSD Express cards, which are required for playing Switch 2 games directly from external storage. This article explains exactly how much space you get, why the new card type matters, and how to estimate how many games will fit.

Internal Storage: 256 GB Baseline

The Switch 2 ships with 256 GB of built-in flash storage, a significant jump from the original Switch’s 32 GB (and the OLED model’s 64 GB). That is enough for roughly 5–10 large first-party titles, depending on their file sizes. However, the operating system, system updates, and save data take up a portion of that space—typically 10–15 GB—so your actual usable storage is closer to 240 GB.

For comparison, the original Switch’s 32 GB was widely considered inadequate, forcing most owners to buy a microSD card immediately. The Switch 2’s 256 GB is more workable, but with game sizes trending upward, you will likely still want an expansion card eventually.

microSD Express: The New Requirement

The Switch 2 uses microSD Express cards for expandable storage. This is a newer standard that offers much faster read speeds than the microSD cards used by the original Switch. The key difference: standard microSD cards (UHS-I) are not compatible with Switch 2 games. They will work for storing screenshots and older Switch games, but to play a Switch 2 game from an external card, you need a microSD Express card.

Why the change? Switch 2 games are larger and use faster loading techniques. The original Switch’s UHS-I cards max out at around 100 MB/s read speeds, which would create long load times and potentially cause streaming hitches in open-world games. microSD Express cards offer sequential read speeds of up to 800 MB/s or more—close to the internal SSD’s performance—so the console can load assets quickly without stuttering.

Nintendo has confirmed that microSD Express cards will be sold under its own branding, but third-party cards that meet the spec (like those from SanDisk and Lexar) also work. The cards are physically identical in size to standard microSD cards, so they fit in the same slot.

Game Sizes: What to Expect

Nintendo has not published a full list of Switch 2 game file sizes, but based on early announcements and the trend from other platforms, here are typical sizes:

First-party titles (Mario, Zelda, Splatoon): 10–30 GB. These are optimized well and often use compression to keep sizes down.
Third-party AAA ports (Cyberpunk 2077, Elden Ring, etc.): 40–100 GB. These are the big ones that will eat your storage quickly.
Indie and smaller games: 1–10 GB. These are easy to fit and rarely cause concern.

For example, if a game like Mario Kart World takes up 15 GB, you could fit about 16 such games on the internal storage. But if you install Cyberpunk 2077 at 70 GB, that leaves only 170 GB for everything else—roughly 11 more 15 GB games.

How to Choose the Right microSD Express Card

When buying a microSD Express card, consider two factors: capacity and speed.

Capacity: Cards come in 128 GB, 256 GB, 512 GB, and 1 TB (and higher). 512 GB is a good sweet spot for most users—it roughly triples your total storage to 768 GB, which can hold 30–50 games. 1 TB is for heavy downloaders or those who buy many digital titles.
Speed rating: Look for the “microSD Express� logo. The spec requires a minimum sequential read of 800 MB/s, but some cards are faster. The Switch 2’s slot supports the full spec, so a faster card will load games slightly quicker, though the difference is often small.

Note that the Switch 2 does not support the older UHS-II or UHS-III standards, so buying those won’t help. Stick to microSD Express.

Common Problems and Misconceptions

One common misconception is that a standard microSD card will work for Switch 2 games if it’s fast enough. It won’t—the console specifically checks for the Express spec. Another issue: you cannot use the same microSD card you used in your original Switch, because that card is likely UHS-I and won’t work for Switch 2 games. You can still use it for screenshots, but not for game data.

Another question is whether you can swap cards between the internal storage and an external card. Yes, you can move games between the two, but the process is not instant—you’ll need to archive the game from one location and redownload it to the other. There’s no hot-swap while playing.

Also, be aware that the microSD Express slot is located under the kickstand on the back of the console, just like the original Switch. You need to power off the console before inserting or removing the card to avoid data corruption.

Comparing to Other Consoles

For context, the PlayStation 5 and Xbox Series X come with 1 TB and 825 GB of internal storage, respectively, and both use proprietary expansion cards. The Switch 2’s 256 GB is smaller, but its games are also generally smaller than PS5/Xbox titles because of the Switch’s less demanding graphics. A typical cross-platform game might be 60 GB on PS5 but 30 GB on Switch 2, due to lower-resolution textures and assets.

Nintendo’s choice of microSD Express is also more consumer-friendly than the proprietary cards used by Sony and Microsoft—you can buy any brand that meets the spec, and prices are likely to drop as the format becomes more common in laptops and other devices.

Costs and Availability

microSD Express cards are more expensive than standard microSD cards. At launch, a 256 GB card might cost around $50–70, and a 1 TB card could run $150–200. Prices will likely fall over time, but they are still a premium over UHS-I cards. The Switch 2 also supports standard microSD cards for storing screenshots and playing original Switch games, so if you already have a large UHS-I card, you can still use it for that purpose—just not for Switch 2 games.

Frequently Asked Questions

Can I use a regular microSD card in the Switch 2?

Yes, but only for screenshots, captures, and playing original Switch games. You cannot play Switch 2 games from a standard microSD card because the console requires the faster microSD Express spec to load them properly.

How many games fit in 256 GB?

It depends on the games. If you mix large AAA titles (40–60 GB) and smaller indies (5–10 GB), you might fit 5–8 games. If you stick to first-party Nintendo games averaging 15 GB, you could fit 15 or more. Always check the file size before downloading.

Is 256 GB enough without an expansion card?

For a casual player who buys physical games and only downloads a few titles, yes. For digital-only players or those who like to keep many games installed, you’ll likely need a microSD Express card within the first year.

What happens if I insert a standard microSD card with Switch 2 games on it?

The console will not recognize those games as playable. You’ll see an error message saying the card is not compatible with Switch 2 software. You’ll need to move the games to internal storage or a microSD Express card.

Are microSD Express cards worth the price?

If you run out of internal storage, yes. The convenience of having all your games installed without deleting and redownloading is worth the cost for most gamers. If you rarely download more than a few games at a time, you might be fine without one.

Can I use the same microSD card from my original Switch?

You can use it in the Switch 2 for screenshots and original Switch games, but not for Switch 2 games. If you want to play Switch 2 games from an external card, you’ll need to buy a new microSD Express card.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.