The SanDisk 512GB Extreme UHS-I microSDXC card is the capacity for people who never want to think about storage again — around 16 hours of 4K 30fps footage, or a phone, drone or handheld console that simply stops asking. QuickFlow technology delivers up to 190MB/s reads and 130MB/s writes, V30/U3 guarantees sustained 4K recording, and the full-size SD adapter in the box drops it straight into cameras and card readers. Genuine SanDisk, with RescuePRO Deluxe recovery included.
Capacity
The sweet spot: 512GB
Big enough that storage stops being a decision: a weekend of 4K on a GoPro or DJI, a full season of phone photos, a serious Switch or Steam Deck library — all on one card, at a noticeably friendlier price per gigabyte than the 1TB flagship.
Speed
190MB/s with QuickFlow
Reads up to 190MB/s make offloads quick, writes up to 130MB/s keep burst shooting and high-bitrate video flowing, and the V30 rating is a guarantee — not a peak figure — that 4K recording will not drop frames. A2 random I/O keeps apps and games loading fast when the card lives in a console or phone.
Versatility
SD adapter in the box
The included full-size SD adapter means one card serves the GoPro on Saturday and the DSLR on Sunday. Four-proof construction — temperature, water, shock and X-ray — keeps it alive through the conditions that end cheaper cards.
Right choice if you…
✔ Shoot 4K at weekends and want a card that lasts the whole trip
✔ Want one card to move between camera, drone and card reader
✔ Run a big game library on Switch or Steam Deck
✔ Want Extreme-class speed without the 1TB price
Consider something else if…
✖ You shoot multi-week expeditions — the 1TB Extreme removes card swaps entirely
✖ 256GB already covers you — the 256GB Extreme is the value pick
✖ You record dashcam/CCTV loops — a High Endurance card suits constant rewriting better
SanDisk 512GB Extreme microSDXC — Technical Specifications
| Brand | SanDisk |
| Capacity | 512GB (microSDXC) |
| Read Speed | Up to 190MB/s (QuickFlow) |
| Write Speed | Up to 130MB/s |
| Ratings | UHS-I · U3 · V30 · A2 · Class 10 |
| Adapter | Full-size SD adapter included |
| MPN | SDSQXA1-512G-AN6MA |
| EAN / GTIN | Printed on retail packaging |
| Warranty | Manufacturer warranty |
In the Box
Frequently Asked Questions
How much video and photo fits on 512GB?
Roughly 16 hours of 4K 30fps GoPro footage, or well over 100,000 high-resolution photos — a long trip’s worth without offloading.
Does the 190MB/s speed apply in my camera?
Peak 190MB/s needs a QuickFlow-compatible reader; standard UHS-I devices reach ~104MB/s. What matters in-camera is the V30 sustained-write guarantee — that is what keeps 4K recording stable, and it applies everywhere.
Will it work in my DSLR or laptop card slot?
Yes — use the included full-size SD adapter for SD slots in cameras, laptops and readers. The card itself fits any microSDXC slot directly.
Is it suitable for a dashcam?
It will work, but constant loop-recording wears any standard card. For 24/7 dashcam or CCTV use, SanDisk’s High Endurance line is purpose-built for continuous rewriting.
Condition
Brand New — Retail Packaging
Warranty
Manufacturer warranty
Delivery
4–5 Working Days · Fully Tracked
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