Switch 2 Games & microSD Express: Storage Explained

No, Switch 2 games do not require a microSD Express card, but you will need one to store and play the largest games directly from external storage. The Switch 2’s internal storage (256 GB) fills up fast, and standard microSD cards are too slow for modern Switch 2 titles. This article explains exactly what microSD Express is, why it matters for Switch 2, and how to choose the right card.

Background: Why Switch 2 Changed the Storage Game

Nintendo’s Switch 2, released in 2025, uses much larger games than the original Switch. Physical cartridges hold up to 64 GB, but many titles exceed that, requiring downloads. The console’s internal 256 GB storage is a significant upgrade over the original Switch’s 32 GB, but it still fills quickly with a few big games. The Switch 2 also supports faster loading times, which demands faster storage than the original Switch’s microSD cards could provide.

Nintendo chose to support the new microSD Express standard, which is dramatically faster than the older microSD cards used in the original Switch. This is not a gimmick—it’s a technical requirement for games that stream data from the card during play.

What Is microSD Express?

microSD Express is a new memory card standard that combines the familiar microSD form factor with PCIe and NVMe interfaces. It offers read speeds of up to 985 MB/s, which is roughly 3-4 times faster than the fastest UHS-I cards (about 100 MB/s) and even faster than many internal SSDs. This speed allows games to load assets directly from the card without noticeable delays.

There are two main types of microSD Express cards:

• microSD Express (with PCIe Gen 3 x1) – the current standard, offering up to 985 MB/s
• microSD Express (with PCIe Gen 4 x1) – newer, offering up to 1969 MB/s, but not yet widely available

Nintendo’s Switch 2 supports the first type, and likely the second via future firmware updates, but the key point is that only microSD Express cards meet the performance bar for Switch 2 games.

How the Switch 2 Uses Storage

The Switch 2 has three storage tiers:

• Internal storage (256 GB) – fastest, always available, but limited
• microSD Express slot – supports microSD Express cards for high-speed external storage
• Standard microSD slot – the same slot as the original Switch, but it only works for older Switch games and apps, not Switch 2 games

This is a crucial distinction: the Switch 2 has a single microSD slot, but it only recognizes microSD Express cards for Switch 2 games. If you insert a standard microSD card, the console will tell you it can only store original Switch games and media. Switch 2 games will not run from a standard card because the read speed is too slow, causing long loading times and potential stuttering.

Do You Actually Need a microSD Express Card?

It depends on your gaming habits:

• If you play only a few games at a time – 256 GB internal might be enough, but you’ll be juggling downloads and deletions.
• If you buy physical games – many physical cartridges still require a download for the full game, so you still need storage.
• If you play large AAA titles – games like Cyberpunk 2077 or Final Fantasy VII Rebirth can exceed 100 GB each. You’ll fill 256 GB with two or three games.

In short, you don’t need a microSD Express card to play Switch 2 games at all—you can use internal storage. But if you want to keep more than a handful of games installed, you’ll need one. And you cannot use a cheap standard microSD card as a workaround.

How to Choose a microSD Express Card

When shopping for a microSD Express card, look for the following:

• Capacity – available in 128 GB, 256 GB, 512 GB, and 1 TB. Choose based on your library size.
• Speed rating – look for “microSD Express” or “PCIe Gen 3” on the packaging. Avoid cards that only say “UHS-I” or “UHS-II” – those are not Express.
• Brand reputation – stick with well-known memory card manufacturers like SanDisk, Samsung, or Lexar. Avoid no-name brands that may fake specs.
• Price – microSD Express cards are more expensive than standard cards, but prices are dropping. Expect to pay roughly 2-3 times the cost of a standard card.

There is no need to buy a faster card than the Switch 2 supports. A card rated at 985 MB/s is sufficient; a Gen 4 card will work but won’t be faster in the Switch 2.

Common Problems and Misconceptions

Here are some frequent issues and myths:

• “My standard microSD card works fine for Switch 2 games” – Actually, the Switch 2 will not even allow you to install a Switch 2 game to a standard card. It will show an error message.
• “I can use an SD card adapter” – No, the Switch 2 only takes microSD cards, not full-size SD cards.
• “I need to format the card” – The Switch 2 will format the card automatically when you insert it, so you don’t need to do anything on a computer.
• “The card is slow because it’s not a well-known brand” – Some cheap cards claim to be microSD Express but are actually UHS-I with fake labels. Always buy from reputable sellers.

Cost and Value

microSD Express cards are more expensive than standard microSD cards. For example, a 512 GB microSD Express card might cost around $80-100, while a standard 512 GB card costs $30-40. However, the price per gigabyte is dropping as the technology matures. If you plan to own many Switch 2 games, the convenience of having a large library on a single card is worth the cost.

One alternative is to rely on internal storage and delete/re-download games as needed. This is free but requires a good internet connection and patience. For most gamers, a 512 GB or 1 TB microSD Express card is a worthwhile investment.

Safety and Handling Tips

To keep your microSD Express card working well:

• Don’t remove the card while the console is on – always power down the Switch 2 before removing or inserting a card.
• Keep the card in its case when not in use – the gold contacts can get dirty or damaged.
• Avoid extreme temperatures – don’t leave the card in a hot car or direct sunlight.
• Back up your save data – while game saves are stored on the console’s internal memory, you can back them up to the cloud if you have a Nintendo Switch Online subscription.

Frequently Asked Questions

Can I use a standard microSD card for Switch 2 games?

No. The Switch 2 will only run Switch 2 games from internal storage or a microSD Express card. A standard microSD card (UHS-I or UHS-II) can only store original Switch games, screenshots, and other data.

How many games can a 1 TB microSD Express card hold?

It depends on game sizes. On average, Switch 2 games are 20-60 GB, so a 1 TB card can hold roughly 15-50 games. Very large games like Call of Duty might be 100+ GB, reducing that number.

Is microSD Express the same as microSDXC?

No. microSDXC is a capacity standard (up to 2 TB) that includes both standard and Express cards. microSD Express is a speed standard that uses PCIe/NVMe. All microSD Express cards are microSDXC, but not all microSDXC cards are Express.

Will a microSD Express card work in the original Switch?

No. The original Switch only supports UHS-I microSD cards. A microSD Express card will not fit or work in an original Switch. The physical shape is the same, but the electrical interface is incompatible.

Do I need to buy a microSD Express card right away?

Not necessarily. You can start with the internal 256 GB and buy a card later when you need more space. The card slot is easily accessible, and you can transfer games between internal and external storage at any time.

Can I use a microSD Express card in a PC or other device?

Yes, many modern laptops and tablets with microSD slots support microSD Express, but you need a device that supports the PCIe/NVMe interface. Older devices that only support UHS-I will not read the card at full speed, or may not read it at all.

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