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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

  • Based on 352,904 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jul 14
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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 SDXC, Micro SD, Micro SDHC


Memory Storage Capacity: 512 GB


Compatible Devices: Camera, Smartphone


Color: ‎Red


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


Read Speed: ‎160 Megabytes Per Second


Item Weight: ‎4.54 Grams


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


Memory Speed: ‎160 Megabytes Per Second


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.

Similar Products

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.

    • 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
    • Great speed and very efficient.
Style: Card Only Capacity: 512GB
Great quality. Fast speed.
Reviewed in the United States on July 7, 2025 by Amazon Customer
    • Good fast, large storage.
Style: Card Only Capacity: 1TB
Fantastic choice for my Steam Deck. The memory is fast, and a good value. It's reliable, and I've had no issues with it.
Reviewed in the United States on May 27, 2025 by Chris
    • Trustworthy
Style: Card Only Capacity: 1TB
High speed, high capacity. Works exactly as advertised. The packaging was easy to get into. Nothing else to say!
Reviewed in the United States on June 20, 2025 by Corey L
    • Has not only the memory size but the speed I needed
Style: Card Only Capacity: 512GB
Great product. I discovered that it is not always the memory size but in some cases like my video doorbell, you need speed as well. Be sure to check speed requirement before you waste your money on a memory card. Not all are created equal. This card works awesome for my application.
Reviewed in the United States on July 8, 2025 by JB
    • I prefer Samsung but this was cheaper and A2 rated
Style: Card Only Capacity: 128GB
I haven't had good luck with Sandisk micro SD cards. I haven't had any failures but these are my two issues: 1. On large file transfers - more than 1gb - Sandisk tends to overheat and lose transfer speed. This is worse writing TO the card than reading from it. Transfer speeds are stil ok, but nothing like the speeds I get from my USB 3.1 port with a thumbdrive. Several years ago the problem was so severe my files got corrupted even when the on-board thermal protection was throttling my transfer speeds down to 5-10 megabytes per second. In the past two years data loss has ceased to be a problem, and the speed hit on large file transfers is much less severe, although Samsung continues to run faster, in real life big file transfers, than San Disk, at least for me. 2. I don't think Sandisk really meets the specs required for "extendable" or "unified" storage on Android, that or it throttles so early the perfomance on small, constant file reads and writes suffers more than it should. I almost always get an error message with their A1 cards on budget (Qualcom 42x chipset) phones complaining the storage is slow and hence not optimal as unified storage. I haven't gotten this error message with my two Fire HD 10 9th gen tablets on this latest A2 iteration, however, which may be a function of the chipsets and memory controller used in these tablets or maybe the upgrade from A1 to A2 makes a difference. I purchased two Fire HD 10's, 2020 editions/9th gen (the second one purchased on Prime Day for just $80, which is insanely cheap) and two of these A2 class Sandisk 128gb micro SD cards. A2 means the memory controller built into the micro SD card should be fast enough to run apps (not gaming apps!) from the card, not just read storage data. The real challenge is for app-rated (A1 or A2) card to handle data reads and writes for multiple apps at the same time. "Same time" is critical - it's not reading a single big file that creates problems for micro SD cards, it's reading small files at nearly the same time to handle the needs of multiple apps running at the same time. The way to avoid any performance issues is to NOT allow the operating system to "move" apps from true internal storage to the SD card. Only data. The first 128gb drive installed perfectly easily in my first Fire as "portable" or "removable" storage but that is not surprising. The second card was installed as "internal storage" in the second Fire glitched several times, crashing once, and not recognized by the tablet as storage at all. I don't know what I finally did to get past the glitches. but as far as I can tell what finally worked was first formatting it as "portable" storage first, rthen ebooting, then re-formatting it as "internal" storage. I was "offered" a chance to move some apps onto the SD card after formatting as internal storage. DO NOT do this - the 32gb of internal, faster storage is a much better place to run apps from, not the SD card even though it is A2 "app-friendly" classified. All CONTENT will automatically go to the SD card in the future, such as downloaded Netflix and Prime Videos. Pay attention to the following issues which might develop: 1. Simultaneously downloading videos or other content AND watching a previously stored video. This can tax the memory controller in the SD card since essentially the device is attempting to read your video and write your downloading episodes at the same time (subject to buffering). It shouldn't be a problem,but it might. I usually download content when I'm not using the tablet. 2. Moving lots of content from external storage - like a thumb drive - to internal storage. The process is ALWAYS a lot faster going from USB 3 thumbdrives to internal factory storage, and slower when writing to the SD card. In my review title I mentioned I prefer Samsung. Without doubt they make more dependable SD cards that more consistently "hit" their specs and don't throttle down as much on large file transfers. However, Sandisk pretty much "owns" the A1 and A2 "app friendly" micro SD space, and they frequently go on sale. Since they no longer "corrupt" large file transfers (I'm talking about moving a 30gb music collection to an SD card in a computer, not just a couple of gb), I no longer avoid Sandisk like the plague. Still, as they say, once burned twice wary. I'm hunting for reviews from Raspberry Pi users. Running an actual operating system from a micro SD card is equally hard, or harder, than running Android apps. So far, the micro SD cards recommend for those Raspberry Pi systems are NOT A1 or A2 class or even necessarily "faster" micro SD cards - apparently speed on larger files doesn't necessarily correlate to the speed required for smaller, constant file transfers that an operating system needs. It's good to see micro SD card prices become so low and commodity-like. I can remember when cards were a dollar a gigabyte, or much more. For under $20 I'm more than willing to give this Sandisk A2 128gb micro SD card a workout in my Fire HD 10 9th gen. I'm also a little surprised to see all the new brand names. I'm used more to Samsung and Sandisk at the top, with Kensington, Patriot, etc. as the next tier. My guess is Chinese subcontractor factories feel less bound to have a long-standing brand name and are just going direct to market. Time will tell how this works out for consumers. ... show more
Reviewed in the United States on October 18, 2020 by MDuck
    • Fast card
Style: Card Only Capacity: 128GB
Fast speeds. Always reads and writes no problem so very easy to use Adapter works good and works in my GoPro's and DJI cameras/ drones. The price fluctuates so when it drops I buy more.
Reviewed in the United States on April 29, 2025 by Brandon S.
    • Great card
Style: Card Only Capacity: 128GB
Works great, good writing and reading speeds, perfect to expand storage on a tablet.
Reviewed in the United States on April 29, 2025 by Gabaeliz

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