SanDisk Extreme microSDXC 256GB Memory Card – 190MB/s A2 U3 V30 4K
SanDisk Extreme microSDXC 256GB Memory Card – 190MB/s A2 U3 V30 4K
The SanDisk Extreme microSDXC 256GB is built for action cameras, drones, and handheld consoles like the Nintendo Switch, delivering read speeds up to 190MB/s and write speeds up to 130MB/s. With A2 app performance and U3 / V30 ratings, it captures smooth 4K UHD video and loads apps fast. Rugged for the outdoors — temperature-proof, waterproof, shockproof, and X-ray-proof. Includes an SD adapter.
Why you'll love it
- Up to 190MB/s read / 130MB/s write for fast capture and offloads
- A2-rated for faster app loading and performance
- 4K UHD ready — U3 and V30 for real-time 4K recording
- Rugged design — temperature-proof, waterproof, shockproof, X-ray-proof
- SD adapter included for cameras and card readers
Key specifications
| Brand | SanDisk |
| Series | Extreme |
| Capacity | 256GB (microSDXC) |
| Read Speed | Up to 190MB/s |
| Write Speed | Up to 130MB/s |
| Speed Class | Class 10, UHS-I, U3, V30 |
| App Performance | A2 |
| Video | 4K UHD, Full HD |
| Durability | Temperature-proof, waterproof, shockproof, X-ray-proof |
What's in the box
- SanDisk Extreme microSDXC 256GB card
- SD adapter
Compatibility
- Action cameras (e.g. GoPro), drones, and handheld gaming consoles
- Android smartphones and tablets with a microSD slot
- Full-size SD devices via the included adapter
Frequently asked questions
Is it good for 4K video and GoPro/drones?
Yes — its U3, V30 and A2 ratings make it ideal for 4K action cameras and drones.
Does it include an SD adapter?
Yes — a full-size SD adapter is included.
How is Extreme different from Ultra?
Extreme adds U3/V30 and A2 for 4K video and faster app performance; Ultra is a Full-HD everyday card.