








🚀 Level up your storage game with speed and resilience!
The SanDisk 256GB microSDXC card delivers ultra-fast read speeds up to 190MB/s and write speeds up to 130MB/s, optimized for Nintendo Switch compatibility. Engineered with SanDisk QuickFlow Technology and rated A2 for superior app performance, it supports 4K and 5K UHD video recording. Its rugged design is waterproof, temperature proof, and X-ray proof, making it the perfect high-performance storage solution for professionals and gamers who demand speed, capacity, and durability.










| Color | Gold/Red |
| Special Feature | Temperature Proof, Water Proof, X Ray Proof |
| Read Speed | 190 Megabytes Per Second |
| Item Weight | 10 Grams |
| Warranty Type | Limited Lifetime |
| Write Speed | 130 MB per second |
| Hardware Interface | microSDXC |
| Secure Digital Association Speed Class | Class 10 |
| Product Dimensions | 0.4"L x 0.5"W |
| Manufacturer | Western Digital Technologies, Inc. |
| UPC | 619659188504 |
| Global Trade Identification Number | 00619659188504 |
| Item model number | SDSQXAV-256G-GN6MA |
| Item Weight | 0.353 ounces |
| Item Dimensions LxWxH | 0.04 x 0.59 x 0.43 inches |
| Batteries | 1 AAAA batteries required. |
| Language | English, English, English, English |
| ASIN | B09X7CRKRZ |
| Is Discontinued By Manufacturer | No |
| Date First Available | June 14, 2022 |
S**O
Good card
Good SD card! Fits and functions perfect, plenty of storage for my dashcam. Pretty fast for what it is and excellent value.
M**I
Small but mighty!
The SanDisk 1TB Extreme microSDXC UHS-I Memory Card with Adapter is a powerhouse of performance packed into an incredibly tiny form factor. I use it across multiple devices—my DJI Osmo Pocket 3, DJI Mini 3 drone, and even my older DSLR via the included adapter—and it performs flawlessly every single time. The read/write speeds are excellent, ensuring smooth 4K video recording and quick file transfers, which is essential for both professional and hobbyist creators. It’s impressive how such a small piece of tech can handle such large, high-resolution files without a hiccup. What really stands out is the card’s reliability and durability. Whether it’s been exposed to varying temperatures, inserted and removed countless times, or used across different camera systems, it has held up perfectly. SanDisk’s reputation for producing dependable storage devices is well-earned here. It’s also incredibly portable—you can carry a terabyte of data in something smaller than a fingernail, which still feels a bit like magic. I loved this memory card so much that I immediately bought a second one, and that’s honestly the highest praise I can give any tech product. It’s one of those purchases that just works, no fuss, no issues, and no second-guessing. If you’re serious about video recording, photography, or just need massive storage in a compact form, this is hands down one of the best investments you can make. A solid 5/5, great value for your money!
L**E
Good value for a quality micro memory card
I bought this memory card for my Samsung tablet. It fits perfectly, and is recognized by the machine. As far as I can detect, it works perfectly. It was a very reasonable price for a quality chip. Because it is so small, the opening in the tablet was a little tricky to deal with, but installation was still easy. I would recommend this card for lots of extra memory.
M**V
Fast, reliable, and perfect for 4K recording 📸
I’ve been using this 1TB SanDisk Extreme microSD card with my Insta360 X5, DJI Osmo Nano, and my Sony ZV-E10 Mark II — and it works flawlessly. The speed is excellent, no delays or freezes, and it handles 4K footage without any issues at all. Even large, heavy files transfer super fast, which is really convenient. I’ve never had a single problem with this card 🙌🏼 No errors, no corrupted files — just stable, reliable performance every time. Great price for the quality. A solid, dependable option. Highly recommend 👍🏼
A**N
Perfect for modding!
Works perfectly!! Very happy for such a quality microsd at a reasonable price.
H**F
⭐⭐⭐⭐ Fast, Reliable, and High-Capacity
The SanDisk 256GB Extreme microSDXC performs very well, with fast read/write speeds that handle 4K and 5K video smoothly. The included adapter is handy, and the large 256GB capacity is great for cameras, drones, and other devices. My only drawback is that it’s a bit expensive compared to similar cards, but the quality and reliability make it worth considering. Overall, a high-performance and dependable microSD card, just slightly pricey.
W**E
Good option for a value priced Micro SD Card
Works excatly as expected and at a value that is excellent. I have a dash-cam and it makes it easier to change out the Micro SD card to view footage rather than leaving the slot empty while going through it. Easy to use and it works well.
R**O
Perfect Match for the Insta360 X5 — Fast, Reliable, and Rugged
I’m using this SanDisk 1TB Extreme microSDXC card with my new Insta360 X5, and it’s been flawless. The pairing delivers exactly what’s needed for high-resolution 360° video capture — speed, reliability, and durability. Transfer rates are impressive, keeping up with 5K recording and rapid file offloading without a hiccup. It’s rugged enough for outdoor shoots and perfectly complements the X5’s performance demands. **Best Use Tip:** Format the card inside your Insta360 X5 before first use to ensure optimal performance and compatibility, especially for 5K and 360° recording. Verdict: A rock-solid storage solution that can handle the demands of professional-level 360° video capture. ⭐⭐⭐⭐⭐ ----------------------------- Key to My Rating System: 5-Stars - This product stands out as superior or offers exceptional value. I highly recommend it. 4-Stars - Above average performance or excellent value. A solid choice for consideration. 3-Stars - This product meets expectations and falls within the average range. 2-Stars - Below average quality or poor quality control. Consider exploring alternative options. 1-Star - I strongly advise against choosing this product; look for alternatives if possible.
P**S
Super zoveel opslag
J**O
Supersnel!
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
F**O
Works good
N**S
- Calidad/Precio: Si bien es cierto que bajo mi punto de vista, en gran parte el precio es debido a la marca, si observas las especificaciones estamos hablando de la gama alta, lo que hace al final que cómo resultado estés pagando por una calidad superior a un precio equitativo. - Aspecto: Compacta, viene con su adaptador SD y un código para descargar el RescuePro Deluxe, por si necesitas recuperar archivos en caso de emergencia. Todo bien presentado, como nos tiene acostumbrados SanDisk. - Satisfacción: 10/10. La tarjeta funciona rápido y sin errores, tanto en transferencia de archivos como en grabación continua de vídeo 4K. El rendimiento A2 también se nota al usarla con apps: todo va fluido y sin lags. ¿Lo recomiendo? Sí, sin ninguna duda, tengo claro que en caso de que deba realizar la compra de otra tarjeta Micro SD, esta es mi opción núm. 1. Estamos hablando de 1TB en una microSD, es una barbaridad, por mucho que te dediques a fotografiar o a grabar de forma extensa en altas resoluciones, tarda en llenarse está claro, eso genera muchísima libertad y comodidad a la hora de crear el contenido, en otras palabras: una tarjeta hecha para rendimiento profesional, en mi caso utilizada para la GoPro HERO Black 12, y tengo claro que podría traspasarla a la Sony ZV-1 en cualquier momento. El precio no es bajo, pero vale cada euro si necesitas espacio, velocidad y fiabilidad, esta tarjeta es una bestia. Ideal para creadores de contenido, fotógrafos, videógrafos o cualquiera que trabaje con archivos grandes.
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