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Sandisk

SanDisk Extreme PRO 256 GB Class 3/UHS-I (U3) V30 microSDXC

  • Based on 7,774 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 11
Order within 1 hour and 19 minutes
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Features

  • The microSDXC memory card features write speed of around 60 MB/s that is sufficient for recording high-definition videos to your mobile phone, tablet, or other smart devices
  • The 256 GB memory card provides you with adequate space to shoot and store ample of videos and loads of snapshots

Description

Fast enough to keep up with the action | Improve your workflow efficiency With SanDisk QuickFlow Technology, this card optimizes performance for timesaving media offloads with quick read speeds up to 200MB/s (64GB - 1TB). Pair with the SanDisk Professional PRO-READER SD and microSD™ to achieve maximum speeds (sold separately). Write speeds of up to 140MB/SCapture fast-action photos or shoot 4K UHD video with write speeds of up to 140MB/s. The SanDisk Extreme PRO microSDXC UHS-I Card lets you shoot more and faster. Great for capturing 4K UHD videoIdeal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 1TB, the SanDisk Extreme PRO microSD UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings. Load apps faster with A2Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme PRO microSD card's A2 Specification. Durable design for use in extreme environmentsSanDisk Extreme PRO microSDHC™ and microSDXC™ UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof, so you can enjoy your adventures without worrying about the durability of your memory card. Compatible with MobileMate® USB 3.0 readerUse the MobileMate USB 3.0 microSD card reader with transfer speeds of up to 2000MB/s, so you can move big files fast, move a lot of files fast or just make frequent file transfers that much quicker.

Brand: Sandisk


Model Name: Extreme PRO


Flash Memory Type: Micro SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices


Flash Memory Type: Micro SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices


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


Read Speed: 200 Megabytes Per Second


Media Speed: 140 MB/s


Hardware Connectivity: microSDXC


Secure Digital Association Speed Class: Class 10


Item Weight: 5 Grams


Item Dimensions L x W: 0.6"L x 0.4"W


Warranty Type: Limited


Brand: Sandisk


Model Name: Extreme PRO


Model Number: SDSQXCD-256G-GN6MA


Manufacturer: SanDisk


UPC: 619659188542


Unit Count: 1.0 Count


Warranty Description: Information Not Available


Color: Information Not Available


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 11

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
  • Affirm Pay in 4
  • Affirm Financing
  • 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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Top Amazon Reviews

    • Unleash Your Device's Potential with SanDisk 256GB Extreme PRO microSD! 💾🚀
I've recently added the SanDisk 256GB Extreme PRO microSD UHS-I Card to my tech arsenal, and it's been nothing short of fantastic. Here’s why this card is a standout performer: Pros: Generous Storage: With 256GB of storage, it's perfect for storing high-resolution photos, 4K videos, and large apps, making it ideal for smartphones, action cameras, and drones. (I personally bought this for my DJI Action 3 Camera and it's been absolutely amazing) Lightning-Fast Read Speeds: Boasting up to 200MB/s read speeds, it allows for quick file transfers, meaning less waiting and more doing. Solid Write Speeds: With 140MB/s write speeds, capturing high-bitrate video and burst photography is a breeze. A2 Performance: Optimized for app performance, ensuring fast and smooth operation even with demanding applications. Versatile Compatibility: The included adapter makes it easy to use with various devices like cameras, laptops, and drones. Rugged Design: Shockproof, temperature-proof, waterproof, and X-ray-proof, this card is built to endure the toughest conditions. Video Speed Class 30 (V30): Ensures a minimum write speed of 30MB/s, making it ideal for recording 4K UHD video. Cons: Small and easy to drop. (Be careful when handling to avoid losing it.) Easily smudged and fingerprinted. (A quick wipe keeps it looking new.) Possibility of scratching the card. (Handle with care to maintain its condition.) More expensive than some other brands. (But the performance and reliability are worth it.) Overall, the SanDisk 256GB Extreme PRO microSD card is a powerhouse of performance and reliability. Whether you're a professional content creator or just need reliable, fast storage for your devices, this card delivers in spades. Highly recommended for its speed, durability, and ample storage capacity! 🌟 ... show more
Reviewed in the United States on July 18, 2024 by Alien Nomad
    • Quality product as usual!
good quality and was compatible with my GoPro Hero13. Super easy to install and works perfectly!
Reviewed in the United States on March 5, 2026 by kryzell
    • Fast, Reliable Card For 4K And Apps
I picked up this SanDisk 256 GB Extreme PRO microSD card to expand storage and it has been very reliable so far. Transfers are noticeably quick when moving files, and large videos and photos load without stuttering. The read and write speeds are more than enough for 4K recording on compatible devices and for running apps or games off the card without everything feeling slow. The included adapter is handy for plugging it into a laptop or card reader when I need to move a lot of data at once. So far I have not run into corrupt files or random disconnects, which I have had with cheaper cards in the past. It formatted easily and the full capacity showed up as expected. The price is higher than basic microSD cards, but for the performance and peace of mind, it feels worth it if you are using it for important photos, video, or a handheld gaming device. ... show more
Reviewed in the United States on December 9, 2025 by Mozzie
    • Great storage
The SanDisk Extreme PRO 256GB microSD card is excellent. It’s super fast, reliable, and perfect for 4K video, burst photos, or storing tons of files.
Reviewed in the United States on January 23, 2026 by Christian F.
    • Good sd card
Perfect memory card for a dji action 4, good reading speed and easy to use.
Reviewed in the United States on March 10, 2026 by Ricardo
    • Excellent card for 360 cameras
This card works perfectly in my Insta360 X5 and the Antigravity A1 drone.
Reviewed in the United States on April 12, 2026 by 20Amazon.Addict.20
    • Reliable Budget-Friendly Micro SD Card with Decent R/W Speeds
To start; considering my budget and needs, this is my go to SD card. I have about 6 I regularly use in my drones and GoPros. Although it is V30 and not V60, the write speeds have not failed yet (I've had other major brands fail on me before). I've shot in up to 5.7K and had no issues. I have formatted, re-formatted, and used them many times, and I have yet to have a fail. I did find the 256 GB seems to outperform the 512 GB based on my occasional delays in writing to the disk with big volume videos such as hyper lapses (could be my camera processor). I think the key to this and any SD card is to handle them with care, remember they are no industrial and prone to the elements, and to format them using you camera gear. ... show more
Reviewed in the United States on March 10, 2026 by GThompson
    • Excellent microSD card for my Osomo Action 5 Pro camera!
Perfect for my Osomo Action 5 Pro camera, super simple to use, and it worked like a charm. Took this with me to Thailand and it did exactly what it was supposed to do.
Reviewed in the United States on January 12, 2026 by Dre

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