The Ultimate Guide to Choosing the Best microSD Card for Switch
As games grow larger and Switch 2 adopts the high-speed microSD Express standard, not every card is up to the job. Here's how to pick the right one based on speed, capacity, durability, and compatibility.
Speed
Read speed determines how fast games load and how long updates take to install. The original Switch tops out around 100MB/s over UHS-I, while Switch 2's microSD Express standard pushes past 800MB/s — nearly eight times faster, cutting load times and update waits dramatically.
Capacity
The original Switch ships with 32GB (64GB on the OLED model), and that fills up fast — a single title like Mario Kart 8 Deluxe or Tears of the Kingdom can eat 20GB or more. Switch 2 offers 256GB built in, but AAA titles now run 40-60GB each, so even that disappears quickly. A 512GB-1TB card gives real breathing room for a growing library.
Durability
A memory card that fails means lost saves and lost data. Look for cards rated for temperature extremes, shock, water, and X-ray exposure (useful if you travel with your Switch), plus a meaningful insertion-cycle rating if you swap cards often.
Compatibility
This is the part that trips people up: Switch 2 only accepts microSD Express cards — marked with an "EX" logo — for game installs and saves. Standard microSD/microSDXC cards, even fast ones, will only handle screenshots and video capture on Switch 2, not full games. The original Switch and Switch OLED, on the other hand, use standard UHS-I microSD cards and don't benefit from microSD Express's extra speed.
Our Recommendations
Two capacities, two consoles — here's the right card for each.
Built for Switch 2, with dual PCIe Gen 3x1 + UHS-I interfaces for both next-gen speed and backward compatibility with older devices.
The right pick for the original Switch or Switch OLED — UHS-I U3/V30/A1 rated, with waterproof, shockproof, and X-ray-proof protection. Not a microSD Express card, so it won't handle game installs on Switch 2.
Whether you're expanding an original Switch or gearing up for Switch 2, matching the card to your console is what actually matters — get that right, and everything else (loading times, game libraries, peace of mind) falls into place.
