

🚀 Elevate your storage game with speed and reliability that keeps you ahead!
The SanDisk Extreme 256GB microSDXC card delivers ultra-fast read speeds up to 190MB/s and write speeds up to 130MB/s, powered by proprietary QuickFlow Technology. Designed for 4K and 5K UHD video recording, it supports UHS Speed Class 3 and Video Speed Class 30 standards. Rated A2 for enhanced app performance, this durable card is temperature, water, and X-ray proof, making it ideal for smartphones, action cameras, drones, and more.










| ASIN | B09X7CRKRZ |
| Batteries | 1 AAAA batteries required. |
| Best Sellers Rank | #1 in Micro SD Memory Cards |
| Color | Gold/Red |
| Customer Reviews | 4.8 4.8 out of 5 stars (142,382) |
| Date First Available | June 14, 2022 |
| Global Trade Identification Number | 00619659188504 |
| Hardware Interface | microSDXC |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 0.04 x 0.59 x 0.43 inches |
| Item Weight | 0.353 ounces |
| Item model number | SDSQXAV-256G-GN6MA |
| Language | English, English, English, English |
| Manufacturer | Sandisk Technologies, Inc. |
| Product Dimensions | 0.4"L x 0.5"W |
| Read Speed | 190 Megabytes Per Second |
| Secure Digital Association Speed Class | Class 10 |
| Special Feature | Temperature Proof, Water Proof, X Ray Proof |
| UPC | 619659188504 |
| Warranty Type | Limited Lifetime |
| Write Speed | 130 MB per second |
W**.
Great for phone storage
I bought this sd card for my Sony Xperia 1 VI android phone and have it set to write all my photos to it. It seems to work very well and has been trouble-free to date. No compatibility issues and writes fast.
J**R
Great Product for the price
Great product, easy install and works exactly as it should
T**N
SanDisk Extreme 128 GB microSDXC – Fast, Reliable Storage for 4K Video and Gaming
I upgraded my GoPro and Nintendo Switch with the SanDisk Extreme 128 GB card and the speed claims actually hold up. The UHS‑I interface delivers up to 190 MB/s read and 90 MB/s write, so 4K video records without dropped frames and game loads in seconds. The C10/U3/V30 rating guarantees sustained performance, and the included adapter makes it easy to use in any device. The card feels solid, resists temperature extremes, and the data has remained error‑free after months of heavy use. Ideal for anyone needing high‑speed, reliable storage in a compact form factor.
G**Y
Quality MicroSD Card
Got this microSD card for video storage and it handles the job very well. 256GB is enough to store a lot of short clips and SanDisk products are generally known for good quality. I am happy with this purchase.
I**O
Works with my insta360x5
I ordered it primarily for my insta360x5. Worked right away, no slow card warning and no formatting needed. I'm quickly finding out i need more storage 😅. I think it was quite affordable, and good for any kind of shot the 360 throws at it including 8k. Can't wait to see how it reliable it will be for the next couple of months.
T**9
quality
as advertised and an excellent product.
A**S
Reliable and fast for FPV DVR recording
I bought this card to use for DVR recording on FPV gear and it has been reliable so far. The write speed seems more than fast enough for continuous recording, and I haven't run into any dropped files or corruption. Transferring footage is quick as well. Overall it works perfectly for my use case.
J**N
Works on the original Switch. Does not work on Switch 2. learned the hard way.
Works great on my "Nintendo Switch", so I bought another one, thinking it would work on my Switch 2. Negative, it does not work on my Switch 2 at all. Thus, I now have 4 tb of storage for my switch 1. This honestly is not a bad situation to be in for me, since I have at least 2 tb of cloud games on my Switch that need a card to sit on. However, I can not respect the price for it, as it will be relegated to outdated tech. This has nothing to do with the card or the price of the card. Just being stuck using it for the Original Switch invalidates the value of the use case of this card for me.
C**L
Top Notch!!!
M**O
Lo he utilizado en un 3ds y funciona muy bien. Siempre me ha parecido de las mejores marcas para tarjetas SD, además a un precio accesible y durabilidad envidiable respecto a otros.
R**4
its ok
T**O
Acheté en deux exemplaires, très bonne carte SD, rapide et fiable. Utilisée dans un lecteur SanDisk USB 3.2 Gen 1, elle atteint en écriture soutenue 86–87 Mo/s, ce qui est parfaitement cohérent avec les 90 Mo/s annoncés. Aucun ralentissement, aucun problème de compatibilité. Utilisées pour des OS sur Raspberry Pi et Jetson Nano et pour stocker du flux webcam en direct. Aucun souci, très bon débit. Testée sur Linux avec dd en écriture (fichier de 500 MiB puis 5 GiB depuis /dev/urandom, conv=fdatasync), la carte atteint 86,8 Mo/s constants en écriture. Pas de buffer temporaire, pas de throttling : les débits sont stables sur toute la durée. Le contrôleur gère bien les gros fichiers. Les valeurs de lecture n’ont pas été testées ici, mais la promesse de 190 Mo/s sera de toute façon liée à des conditions optimales (QuickFlow™ activé + lecteur propriétaire SanDisk PRO). Pour une carte UHS-I V30, les performances sont quasiment maximales. Très bon choix pour un usage exigeant, y compris en 4K ou pour transfert de gros fichiers. [theo@lahaja ~]$ dd if=/dev/urandom of=/run/media/theo/76e2085e-462c-42e7-8ec9-91ecb8ebae21/home/alarm/testfile2 bs=4M count=125 conv=fdatasync 125+0 enregistrements lus 125+0 enregistrements écrits 524288000 octets (524 MB, 500 MiB) copiés, 6,08032 s, 86,2 MB/s [theo@lahaja ~]$ dd if=/dev/urandom of=/run/media/theo/76e2085e-462c-42e7-8ec9-91ecb8ebae21/home/alarm/testfile3 bs=4M count=1250 conv=fdatasync 1250+0 enregistrements lus 1250+0 enregistrements écrits 5242880000 octets (5,2 GB, 4,9 GiB) copiés, 60,3937 s, 86,8 MB/s
P**T
Ich nutze die SanDisk Extreme microSDXC Speicherkarte seit über einem Jahr in meiner Kamera und meinem Smartphone und bin sehr zufrieden. Die Karte überzeugt durch schnelle Lese- und Schreibgeschwindigkeiten, was besonders beim Aufnehmen von Videos in hoher Auflösung und schnellen Serienaufnahmen wichtig ist. Die Installation verlief unkompliziert, die Karte wird problemlos von allen Geräten erkannt. Die Verarbeitung wirkt robust, sie fühlt sich hochwertig an und macht bisher keine Probleme, selbst bei häufigem Wechsel zwischen Geräten. Auch bei längerer Nutzung gab es keine Datenverluste oder Aussetzer. Für den Preis erhält man hier eine zuverlässige Speicherkarte, die für den Alltagsgebrauch und anspruchsvollere Anwendungen bestens geeignet ist. Im Vergleich zu günstigeren Modellen macht sich die Qualität der SanDisk Extreme deutlich bemerkbar, vor allem in puncto Geschwindigkeit und Haltbarkeit. Fazit: Eine zuverlässige microSD-Karte für alle, die Wert auf Performance und Sicherheit legen – klare Empfehlung - 5 Sterne.
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