SanDisk microSD Express 512GB – 880MB/s for Nintendo Switch 2
The SanDisk microSD Express 512GB is one of the fastest microSD cards available, using PCIe/NVMe technology to reach read speeds up to 880MB/s and write speeds up to 650MB/s — far beyond standard UHS-I cards. It's designed for the Nintendo Switch 2 and other microSD Express devices, with SanDisk ThermAdapt technology to manage heat during sustained use. Backward compatible with UHS-I devices at UHS-I speeds.
Why you'll love it
- Up to 880MB/s read / 650MB/s write via PCIe/NVMe
- Made for Nintendo Switch 2 — faster load times and expanded storage
- ThermAdapt technology helps manage heat for sustained performance
- Backward compatible with UHS-I devices (at UHS-I speeds)
- 512GB capacity for games, apps, and high-res video
Key specifications
| Brand | SanDisk |
| Series | microSD Express |
| Capacity | 512GB (microSDXC Express) |
| Read Speed | Up to 880MB/s |
| Write Speed | Up to 650MB/s |
| Interface | microSD Express (PCIe/NVMe) |
| Compatibility | Nintendo Switch 2, microSD Express devices; UHS-I backward compatible |
What's in the box
- SanDisk microSD Express 512GB card
Compatibility
- Nintendo Switch 2 and devices supporting microSD Express
- UHS-I microSD devices (operates at UHS-I speeds)
Frequently asked questions
Does it work with the original Nintendo Switch?
It works as a standard UHS-I card in the original Switch, but full Express speeds require a microSD Express device like the Switch 2.
Why is it so much faster than normal microSD?
It uses PCIe/NVMe (the same technology as SSDs) instead of the older UHS-I interface.
Will it reach 880MB/s in any device?
Only in microSD Express-compatible devices; in UHS-I devices it runs at UHS-I speeds.