The SanDisk 256GB Extreme microSDXC is the weekend-shoot workhorse: around 8 hours of 4K 30fps on one card, reads up to 160MB/s for brisk offloads, and the V30/U3 write floor that keeps recording frame-perfect. A2-rated for phones and handheld consoles, four-proof for everything else.
Speed
160MB/s reads, V30 writes
Fast offloads, fluid 4K and burst shooting — with V30 as a guaranteed sustained-write floor rather than a marketing peak. A2 random I/O keeps apps and games responsive from the card.
Capacity
256GB — the weekend card
Roughly 8 hours of 4K 30fps or ~50,000 photos: a full weekend of shooting, a serious Switch library or a phone that stops nagging — without half-terabyte pricing.
Reliability
Four-proof, genuine SanDisk
Temperature-proof, waterproof, shock-proof and X-ray-proof — the build that survives drones in winter and bags through airport scanners. Genuine SanDisk through the channels we have used since 2011.
Right choice if you…
✔ Shoot full days or weekends on GoPro/drone
✔ Run a serious game library on Switch or Steam Deck
✔ Want the Extreme line’s V30 floor at mid capacity
✔ Value four-proof durability
Consider something else if…
✖ You want faster offloads — the Extreme PRO line reads at 200MB/s
✖ You need more room — the 512GB Extreme doubles it
✖ It is for a Switch specifically — the Nintendo-licensed 256GB is made for it
SanDisk 256GB Extreme microSDXC — Technical Specifications
| Brand | SanDisk |
| Capacity | 256GB (microSDXC) |
| Read / Write | Up to 160MB/s / 90MB/s |
| Ratings | UHS-I · U3 · V30 · A2 · Class 10 |
| MPN | SDSQXA1-256G-AN6MA |
| EAN / GTIN | Printed on retail packaging |
| Warranty | Manufacturer warranty |
In the Box
Frequently Asked Questions
How much 4K fits on 256GB?
Roughly 8 hours at 4K 30fps, or around 50,000 high-resolution photos.
Is it fast enough for 4K60 or 5K?
Yes — the V30 floor covers consumer 4K60/5K bitrates on GoPro and DJI hardware.
Extreme vs Extreme PRO?
Identical in-camera (both V30); PRO offloads faster with a compatible reader.
Does it include an SD adapter?
No — card only on this listing.
Condition
Brand New — Retail Packaging
Warranty
Manufacturer warranty
Delivery
4–5 Working Days · Fully Tracked
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