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  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your device stops working, the Rescue data recovery plan will recover the data from the failed device and return it to you on a new piece of external storage media.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
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Product Protection by After Solutions

  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.

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  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your device stops working, the Rescue data recovery plan will recover the data from the failed device and return it to you on a new piece of external storage media.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
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2-year Photo and Data Recovery Plan
$3.99
3-year Photo and Data Recovery Plan
$4.99
$34.83
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2-Year Data Recovery Plan

from After Solutions
$3.99
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your device stops working, the Rescue data recovery plan will recover the data from the failed device and return it to you on a new piece of external storage media.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.

3-Year Data Recovery Plan

from After Solutions
$4.99
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
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  • 6 VIDEOS
  • SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA
  • SanDisk Extreme microSD UHS-I CardSandisk Technologies, Inc

SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA


$34.83
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Capacity: 256GB
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Purchase options and add-ons

About this item

  • Compatible with Nintendo-Switch (NOT Nintendo-Switch 2)
  • Save time with card offload speeds of up to 190MB/s powered by SanDisk QuickFlow Technology (Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB capacities. 1GB=1,000,000,000 bytes and 1TB=1,000,000,000,000 bytes. Actual user storage less.)
  • Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately), Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices
  • Up to 130MB/s write speeds for fast shooting (Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes.)
  • 4K and 5K UHD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (Compatible device required. Full HD (1920x1080), 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site. 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. See the SD Association’s official website.)
  • Rated A2 for faster loading and in-app performance (A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors)

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From the manufacturer

M01
M02-256GB

Write Speeds of up to 130MB/s(1)

Capture fast-action photos or shoot 4K and 5K UHD video(3) with write speeds of up to 130MB/s. The SANDISK Extreme microSDXC UHS-I Card lets you shoot more, fast. [256GB-1TB]

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

SANDISK Extreme microSDXC card 128GB Video

Merchant Video
M04-256GB

Improve Your Workflow Efficiency

With SANDISK QuickFlow Technology(2), this card optimizes performance with quick read speeds up to 190MB/s. Pair with the SANDISK Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).[128GB-1TB]

M05-Feature 1

Shoots 4K and 5K Video(3)

This card captures 4K and 5K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.(4)

M05-Feature 2

Load Apps with A2(5)

Get faster app performance for an outstanding smartphone experience thanks to this card’s A2 Specification.[64GB-1TB]

M05-Feature 3

Durable Design

SANDISK Extreme microSDHC and microSDXC UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof(6).

M05-Feature-4-256GB

Easy File Recovery

Includes a 2-year offer for RescuePRO Deluxe file recovery software(7), which helps you restore images you accidentally deleted.

Upgrade your workflow

Extreme microSD UHS-I Card

PRO-READER SD and microSD Card

Card & Reader Bundle

Transfer Speeds

Up to 190MB/s(1)[128GB-1TB](2)

Performance

Allows for high-speed offloads that minimize downtime

Transfer Speeds

Up to 190MB/s(1)[128GB-1TB](2)

Shot Speeds

Up to 130MB/s(1)[256GB-1TB]

Card Compatibility

Ideal for SANDISK SD and microSD cards with SANDISK QuickFlow Technology

Shot Speeds

Up to 130MB/s(1)[256GB-1TB]

Video Quality

4K & 5K UHD(3)

Design

Premium aluminum enclosure helps keep cards cool to prevent overheating

Speed Class

C10, V30, and U3(4)

Connectivity

USB-C (5Gbps) port provides super-fast media transfers

App Performance

A2 Specification(5)[64GB-1TB]

Security

Write-protect lock switch helps protect from overwriting

Legal disclaimers

Not all devices support microSD memory card formats. Check with your device manufacturer for more details.

(1) Speeds vary by capacity. [256GB-1TB]: Up to 190MB/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 130MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. [128GB]: Up to 190MB/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. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. [64GB]: Up to 170MB/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 80MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. [32GB]: Up to 100MB/s read speeds; up to 60MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. (2) SANDISK QuickFlow Technology is only available for 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB capacities. Must use SANDISK Professional PRO-READER SD and microSD to achieve maximum transfer speeds (sold separately). (3) Compatible device required. Full HD (1920x1080), 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) support may vary based upon host device, file attributes and other factors. See HD page on Sandisk site. (4) 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. See the SD Association’s official website. (5) [64GB-1TB]: A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors. [32GB]: A1 performance is 1500 read IOPS, 500 write IOPS. Results may vary based on host device, app type and other factors. (6) Card only. See official Sandisk website for additional information and limitations. (7) Registration required; terms and conditions apply. (8) Download and installation required. See the SANDISK Memory Zone page on Sandisk site. (9) 1GB=1,000,000,000 bytes and 1TB=1,000,000,000,000 bytes. Actual user storage less.

Product specifications subject to change without notice. Pictures shown may vary from actual products.

SANDISK, the SANDISK logo, SANDISK Professional, SANDISK Extreme, SANDISK QuickFlow, and RescuePRO are registered marks or marks of Sandisk Corporation or its affiliates in the US and/or other countries. The microSD, microSDHC and microSDXC marks and logos are marks of SD-3C, LLC. Android is a mark of Google LLC. All other marks are the property of their respective owners.

2025 Sandisk Corporation or its affiliates. All rights reserved.

Product information

Technical Details

Collapse all
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 ‎Sandisk 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

Additional Information

Customer Reviews
4.8 out of 5 stars
Best Sellers Rank

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA


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Product Description

The SanDisk Extreme microSDXC memory card lets you save time transferring media with read speeds of up to 190MB/s(1) powered by SanDisk QuickFlow Technology(2). Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately). With write speeds up to 130MB/s(1) it’s ideal for your Android smartphone, action cameras, or drones. This high-performance microSD card handles 4K and 5K UHD video recording, Full HD video(3), and high-resolution photos. | (1)Up to 190MB/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 130MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. (2)SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB capacities. [1GB=1,000,000,000 bytes and 1TB=1,000,000,000,000 bytes.] Actual user storage less. (3)Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.

Top Brand: Sandisk

Highly Rated
100K+ customers rate items from this brand highly
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Customer reviews

4.8 out of 5 stars
140,525 global ratings

Customers say

Customers find the microSD card works well with various devices including Nintendo Switch, GoPro, and Eufy Security cameras, with fast write speeds and plenty of space for videos and Nintendo Switch games. The card receives positive feedback for its quality, value for money, and reliability. Durability experiences are mixed, with some customers reporting it never failed while others mention it corrupted after 6 months of use.
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1700 customers mention functionality, 1539 positive, 161 negative
Customers find that the memory card works well, particularly with Nintendo Switch, and report no issues with its performance.
Got this for my Switch and it fits in the SD slot perfect. Works great, was able to transfer games onto the SD card and now have plenty of room for...Read more
This works well, but the value isn't there, I recommend the 1.5tb, it's good quality, but over priced for storage, durability is not something I can...Read more
Added this memory to my Amazon Fire 8 pro tablet. It works perfectly and is really fast....formatted in 1/10 the time it took compared to my son's...Read more
Works as expected. Storage was correct. I rarely buy memory on Amazon due to counterfeit issues. I needed this quickly so I took a chance.Read more
1133 customers mention card quality, 1093 positive, 40 negative
Customers praise the memory card's quality, describing it as a high-quality micro SD card.
Great product, fast transfer speeds. SanDisk is fantastic. Highly recommend investing in something like this that is of a high quality bar....Read more
It is a good product, fast download and durable. The only deal is price is still high for the product at the market over three years.Read more
...works well, but the value isn't there, I recommend the 1.5tb, it's good quality, but over priced for storage, durability is not something I can say...Read more
Great quality, I was excited to use it, it looks good in appearance, easy to install also I'm using it right now and I have no issues.Read more
785 customers mention value for money, 705 positive, 80 negative
Customers find the memory card offers good value for money, appreciating its storage capacity and price point.
Good price and error free. Just what I needed for my GPS electronics. I haul cars and needed far more memory than what my GPS came with originally....Read more
This memory card arrived with an adapter and a storage case, for a great price. I am using the memory card in a Zoom portable recorder.Read more
...It is very reliable and a great value. It also comes already formatted. The other micro discs that are sold with giant memory are not formatted....Read more
...SD card.. extra storage, pretty good speeds for file transfers.. good value.. good brand... Using for storage space for videos and large files works...Read more
580 customers mention read speed, 508 positive, 72 negative
Customers praise the memory card's read speed, noting its fast write speeds and lightning-fast performance, with one customer mentioning its suitability for high-speed dash cam use.
Perfect for Steam Deck and fast. Definitely not a knock off. I'm always worried about knock off SD cards on Amazon but this is definitely a legit one.Read more
SanDisk has always been a great product in quality and speed. Using this in a Sony Alpha a6000. Worked great and the included adapter was appreciated!Read more
These SD cards are very fast and work great for video and picture storage for things like DJI Drones, 4K cameras, and cellphones and tablets....Read more
Works perfect for my switch and honestly it is super fast. Tried lower tier cards before and there has been lag. This one is perfect and 13/13!Read more
542 customers mention storage capacity, 512 positive, 30 negative
Customers are satisfied with the memory card's storage capacity, as it holds all their pictures and Nintendo Switch games, with one customer noting it can store hours of video.
I use these to film on my GoPro. Lots of storage and and great record rate. I haven’t had any problems with these cards.Read more
Great cards. Good storage. Good video. Good picture.Read more
I use these to save photos taken on my drones. The large capacity allows both photos and videos to be stored/saved.Read more
I use these in my drones. Great storage. Never miss anything you send its way. Never lose quality on images. Great value for price.Read more
402 customers mention compatibility, 319 positive, 83 negative
Customers report that the memory card works well with various devices, including GoPro, Nintendo Switch, Eufy Security cameras, and Steam Deck.
...is seamless when recording high-resolution video. Versatility: It’s rated U3, V30, and A2, making it suitable for video recording, gaming,...Read more
This works great with my dash cam. Easy to use, lots of storage and great price point!Read more
...Works great with the Steam Deck! I recommend the one Sold and Shipped by Amazon!Read more
Not compatible with Nintendo Switch 2Read more
279 customers mention reliability, 218 positive, 61 negative
Customers find the memory card reliable, reporting no errors and solid data storage performance.
Reliable and dependable card..SanDisk is the best way to go for quality and reliability..no set up..easy to use for anything type of files you want...Read more
Reliable sd card, formatted fine and stored data as expected good card.Read more
Super fast and reliable memory card. I use it for my 4K drone footage, and it handles everything without lag. Writes quickly, no data loss....Read more
...and it is not recognized at all tried it in a digital camera said defective card tried it in my drone and guess what, yup would not workRead more
342 customers mention durability, 201 positive, 141 negative
Customers have mixed experiences with the SD card's durability, with some reporting it never failed and is always dependable, while others mention it corrupted after 6 months of use or suddenly died after 3 months.
...and dependable card..SanDisk is the best way to go for quality and reliability..no set up..easy to use for anything type of files you want to save.....Read more
...Had the exact same model for my car dash camera. Unfortunately it stopped working probably due to high temperature inside the car during the summer...Read more
...room to store all my photos, videos, and apps, and I love that it’s durable—it’s built to withstand water, temperature extremes, and shocks, so I do...Read more
Two weeks into using it in my dash cam camera the card stopped working. It looks like dash cam is recording but the vidoes show up as 0 bites....Read more