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Sandisk

SANDISK 256GB Extreme microSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 14
Order within 5 hours and 42 minutes
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Style: Old Version


Capacity: 256gb


Features

  • 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 Associations 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)

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.

Brand: Sandisk


Model Name: SanDisk Extreme microSD UHS-I Card with Adapter


Flash Memory Type: Micro SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Action Cameras, Digital Cameras, Drones, Smartphone, Tablet


Flash Memory Type: Micro SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Action Cameras, Digital Cameras, Drones, Smartphone, Tablet


Additional Features: Temperature Proof, Water Proof, X Ray Proof


Read Speed: 190 Megabytes Per Second


Media Speed: 130 MB per second


Hardware Connectivity: microSDXC


Secure Digital Association Speed Class: Class 10


Item Weight: 10 Grams


Item Dimensions L x W: 0.4"L x 0.5"W


Warranty Type: Limited Lifetime


Color: Gold/Red


Brand: Sandisk


Model Name: SanDisk Extreme microSD UHS-I Card with Adapter


Model Number: SDSQXAV-256G-GN6MA


Manufacturer: Sandisk Technologies, Inc.


UPC: 619659188504


Global Trade Identification Number: 04


Mfr Part Number: SDSQXAV-256G-GN6MA


Unit Count: 1.0 Count


Warranty Description: Lifetime limited manufacturer warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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This card is a solid choice if you need reliable, high-capacity storage. With 512GB, there’s plenty of space for photos, videos, apps, and more without constantly worrying about running out. The performance is fast and smooth, making it great for 4K video recording, cameras, drones, or even expanding phone storage. It feels dependable, and you can trust it to handle larger files without slowing things down. High capacity, strong performance, and a great option when you need space and speed 👍✨ ... show more
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Reviewed in the United States on April 12, 2026 by F Houston
    • Works wonderfully
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Works really great. It’s a versatile memory card that can store a ton of information. I put it in my tablet so that my tablet has enough memory. I also think the fact that the brand is reputable makes it that much better of a deal. I love the video quality and it’s very easy to use.
Reviewed in the United States on April 12, 2026 by Jessican
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Reviewed in the United States on April 11, 2026 by Ford tech
    • Fast, reliable, and perfect for cameras/drones
Style: Old Version Capacity: 128gb
Works flawlessly with no lag or data issues. Speeds are fast for recording and transferring files, especially for 4K videos. Reliable brand and great performance overall.
Reviewed in the United States on March 29, 2026 by Pranav Artham
    • Sandisk is a super reliable brand, avoid the generic chips unless you like losing valuable data!
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Reviewed in the United States on May 4, 2026 by roller_steve1
    • So glad I bought this when I did!
Style: New Version Capacity: 2tb
I had just gotten a new tablet, which can take up to a 2 TB micro SD card. This card can hold almost my entire MP3 music library! No more deciding what to keep and what to remove when buying new music! I have purchased SanDisk SD cards from the beginning because they are reliable and work well.
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