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Sandisk

SanDisk 512GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-512G-GN6MA

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Style: Card Only


Capacity: 512GB


Features

  • Up to 160MB/s read speeds to save time transferring high res images and 4K UHD videos (2); Requires compatible devices capable of reaching such speeds
  • Up to 90MB/s write speeds for fast Shooting; Requires compatible devices capable of reaching such speeds
  • 4K UHD and Full HD Ready (2) with UHS Speed Class 3 (U3) and video Speed Class 30 (V30) (5)
  • Rated A2 for faster loading and in app Performance (8). Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices
  • Built for and tested in harsh conditions: temperature Proof, Water Proof, shock Proof and x ray Proof(4)
  • Get the SanDisk Memory Zone app for Easy file management (available on Google Play) (3)
  • Order with Your Alexa Enabled device; Just asks 'Alexa, order SanDisk microSD'

Description

With the SanDisk Extreme 512GB (1) microSD UHS-I Memory Card get extreme speeds for fast transfer, app performance, and 4K UHD video. (2) Ideal for your Android smartphone, action cameras or drones, this high-performance microSD card handles 4K UHD video recording, Full HD video and high-resolution photos. The super-fast SanDisk Extreme microSDXC memory card reads up to 160MB/s and writes up to 90MB/s. Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience. (7) | Not all devices support microSD memory card formats. Check with your device manufacturer for more details. | For 128GB-1TB: Up to 160MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Up to 90MB/s write speeds. 1MB=1,000,000 bytes. | (1) 1GB=1,000,000,000 bytes. Actual user storage less. | (2) Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes and other factors. | (3) Download and installation required. | (4) Card only. See SanDisk website for additional information and limitations. | (5) UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video speed class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. | (6) Registration required; terms and conditions apply. | (7) For 64GB-1TB: A2 performance is 4000 read IOPS, 2000 write IOPS. (8) Read only; based on internal testing. Results may vary based on host device, file attributions and other factors.

Brand: Sandisk


Model Name: Extreme


Flash Memory Type: Micro SD, Micro SDHC, Micro SDXC


Memory Storage Capacity: 512 GB


Compatible Devices: Camera, Smartphone


Color: ‎Red


Special Feature: ‎Drop Proof, Temperature Proof, Water Proof, X Ray Proof


Read Speed: ‎160 Megabytes Per Second


Item Weight: ‎4.54 Grams


Warranty Type: ‎Lifetime Limited


Write Speed: ‎90 MB


Hardware Interface: ‎microSDXC


Secure Digital Association Speed Class: ‎Class 10


Product Dimensions: ‎0.59"L x 0.43"W


Manufacturer: ‎Western Digital Technologies, Inc.


UPC: ‎619659173760


Global Trade Identification Number: ‎60


Item model number: ‎6.19659E+11


Item Weight: ‎0.16 ounces


Item Dimensions LxWxH: ‎0.04 x 0.59 x 0.43 inches


Language: ‎English, English, English, English


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎April 15, 2019


Frequently asked questions

The SanDisk 512GB Extreme microSDXC can reach up to 160MB/s read speeds. However, actual speeds may depend on the device used or other factors.

Yes, this Extreme microSDXC memory card comes with an SD adapter for compatibility with SD-enabled devices.

Yes, this SanDisk card comes with U3 and V30 ratings, which make it suitable for recording and playing 4K UHD videos.

The A2 rating signifies that the card is optimized for app performance, enabling faster launch and better performance for mobile apps.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The Sandisk Extreme micro SD card receives generally positive reviews, with users praising its function in the Steam Deck and car dashcam, where it performed flawlessly despite constant use. However, a few customers have expressed concerns about overheating during large file transfers, slower transfer speed than a USB 3.1 port with a thumb drive, and other functionality issues related to app running and simultaneous data transmission.

Pros

  • 😀 Great for expanding storage on devices like the Steam Deck
  • 👍 Consistent performance in intensive uses like car dashcam
  • 🚀 Speedy load times for games
  • 🔁 Flawless multiple video recording and rewriting

Cons

  • 😓 Tendency to overheat during large file transfers
  • 💾 Slower transfer speed compared to a USB 3.1 port with a thumb drive
  • 📲 Possible performance issues when reading and writing small files for multiple apps at the same time

Should I Buy It?

Despite some concerns, the Sandisk Extreme micro SD card has demonstrated good performance in all reviewed uses, from gaming to car dashcams. If you can make use of its high storage capacity and don't heavily depend on the swift transfer of large files, it's definitely worth considering.

    • Great for Old Digital Camera – Just Know the Card Size Limit
Style: Card Only Capacity: 64GB
I picked up this 64GB SD card for my Panasonic Lumix DMC-ZS6, and it’s been working flawlessly. Just a heads-up: this camera supports SD, SDHC, and SDXC cards, but it maxes out at 64GB, so don’t go buying one of those huge 256GB cards if you have an old camera. They probably won’t work. 👍 Pros: - Fits perfectly within the camera’s limit and needed the included SD adaptor. - Stores thousands of photos at 12MP resolution. - Can hold hours of 720p video, which is the camera’s top setting. - No setup needed, just plug it in and shoot. 👎 Cons: - Nothing really, exactly what I expected it to do If you’re using an older camera like the ZS6, this card hits the sweet spot. It’s affordable, works great, and gives you way more space than you probably need. ... show more
Reviewed in the United States on January 11, 2026 by NegativeG
    • Solid product
Style: Card Only Capacity: 64GB
I have 4 of these and have been using them several years now without failure in my dash cams. They're solid.
Reviewed in the United States on January 17, 2026 by Michael Balagula
    • Fast, Reliable, and Perfect for Raspberry Pi 4
Style: Card Only Capacity: 128GB
This microSD card has been perfect for my Raspberry Pi 4. The speed is excellent — everything runs smoothly and responsively. I installed Kali Linux ARM on it and still have more than enough room for the additional tools I plan to add. The price was great for the performance and storage capacity, and the quality is exactly what I expect from SanDisk. It arrived very well protected in the packaging while still being easy to access. Fast, reliable, and high quality — definitely a five-star purchase. ... show more
Reviewed in the United States on February 14, 2026 by Robin Lindzer
    • get yourself a USB 3.2 UHS-II MicroSD card reader for true benchmark scores.
Style: Card Only Capacity: 64GB
*UPDATE* Your adapter matters far more then you think. I do get advertised speeds when using my Kingston USB 3.2 MobileLite Plus UHS-II card reader. However when using ANYTHING else, the scores are underwhelming...that speaks more to the lack of quality of most USB MicroSD card readers then the MicroSD cards themselves. I got this card originally for my Raspberry Pi, so I didnt go for a 128gb card because its not really needed for a Raspberry Pi certainly not with the projects im using it for. The Pi ran pretty well on it, but as time passed and I looked into benchmarking, I took it out of my Pi, cleared it and benchmarked. I have seen quite a few benchmarks from people running an older version of Crystal Diskmark then me and with a 128GB card that performed as advertised spec-wise...but my benchmark tests were a bit underwhelming, my suspect is the adapter so I will be buying a USB 3.2 adapter and see how that goes, I just hope it works for all cards and not just the cards of the brand who makes the adapter. I tested all of the following methods on 2 different computers both using USB 3.1 Gen 1 SS ports, with a USB 3.1 card reader(Transcend USB 3.1 Gen 1) which has shown in the reviews of it here on amazon to benchmark around the same as my results show, nothing above 95mb/s, so I do believe its bottlenecked at the adapter. I used Crystal DiskMark 7, I also tested using h2testw and doing an actual file transfer. The results are as follows: Crystal Diskmark: BEST results, using peak performance test: 95mb/s sequential read 70mb/s sequential write 7.5mb/s random read 3.42mb/s random write 1838 read IOPS 834 write IOPS AGAIN, this was THE BEST results I got by far with Crystal Diskmark, other tests with the same program didnt do as well, and this is nowhere near the IOPS performance that it should have. This is A1 level IOPS performance. H2testw performance: (writing/verifying entire card) 57.4mb/s write 73.5mb/s read Real life file transfer. Using 6GB folder: Peak write speed: 61mb/s Consistantly around 35-40mb/s Dropped as low as 9mb/s, and CONSISTANTLY dropped as low as 10-20mb/s, and this is a SMALL FILE. I have photos I can upload as verification but this review is not letting me. The Sequential Read speed and Random read/write on MUCH cheaper cards match this 64GB card, the only noticable difference is sequential write is faster on this(SanDisk Extreme) card then others. For comparison I used a 32GB Kingston Canvas Select Plus purchased from MicroCenter (A1/C10/UHS-1/V10 rated) it got VERY SIMILAR benchmarks outside of sequential write which is was significantly slower(17mb/s)...but all random read/write and read speeds were the same. Kingston Canvas Select Plus results CrystalDiskMark results: Sequential read: 95mb/s Sequential write: 17.6mb/s Random Read: 6.62mb/s Random Write: 3.27mb/s Read IOPS: 1615 Write IOPS: 800 Will update when I have a better higher speed working adapter. One concern I do have was in the real world transfer test the speeds dropping significantly, and the h2testw...but maybe that could be the adapter as well? Seems unlikely but I suppose its possible its not able to sustain the speeds. Good card, well see if its great when I get a better adapter. ... show more
Reviewed in the United States on January 30, 2020 by Ed C
    • SanDisk 128GB Extreme microSDXC UHS-I Memory Card
Style: Card Only Capacity: 128GB
The SanDisk 128GB Extreme microSDXC UHS-I Memory Card has exceeded my expectations in terms of speed, reliability, and overall performance. Whether you're using it for 4K video recording, gaming, or expanding storage on your smartphone or tablet, this memory card handles it all with ease. With transfer speeds of up to 160MB/s, this card allows for lightning-fast data transfers, making it perfect for shooting and storing high-resolution photos and videos. I’ve been using it with my action camera, and the performance is flawless – no lag, no skipped frames, just smooth and reliable operation. The included adapter is a nice bonus, making it easy to use this microSD card in a variety of devices. The durability of the card is also impressive, as it’s built to withstand harsh conditions like extreme temperatures, water, and shock. Pros: Blazing fast transfer speeds up to 160MB/s Perfect for 4K video recording and high-res photography Reliable and durable in tough conditions Comes with an adapter for added versatility Ample 128GB storage capacity Cons: None so far! This memory card has performed flawlessly for all my needs. Overall, the SanDisk Extreme microSDXC is a fantastic choice for anyone who needs high-speed, high-capacity storage. Whether you're a professional or just need extra space for your media, this card delivers outstanding performance. Highly recommended! ... show more
Reviewed in the United States on August 16, 2024 by john bailey
    • One of the Best of Its Kind!
Style: Card Only Capacity: 1TB
This is one of the fastest traditional MicroSD cards on the market if not THE fastest and performs great at a lot of tasks. I use this in my Asus ROG Ally X(the updated one that doesn't cook MicroSDs) and it is more than enough for emulation up to PS3 as well as older PC games. This is a great way to expand my Ally X's storage without needing an even more expensive SSD than I've already put in it. That it's removable makes it infinitely useful for transferring material from my main PC. I cannot speak for its speed for other uses, however it is the fastest MicroSD card I've ever owned by far. Pretty expensive for the capacity and speed but there is literally almost nothing better for this specific application. Good stuff! ... show more
Reviewed in the United States on April 11, 2025 by Jeffery Jelinski

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