![[Older Version] SanDisk 128GB Extreme PRO SDXC UHS-I Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXY-128G-GN4IN](https://m.media-amazon.com/images/I/71TRuPdTPEL._AC_SS57_.jpg)
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This SD card works great with my Sony A7III and has been completely reliable. I use it for both photos and video, including high resolution stills and 4K recording, and it has handled everything without issues.
The speed is excellent. Write and read performance is fast enough to keep up with continuous shooting and video recording without buffering or dropped frames. File transfers to a computer are also quick, which saves time when offloading large files.
I have not experienced any corruption or errors. Images and video files have remained intact and consistent, which is critical when using a card for important shoots. Picture quality is exactly as expected with no glitches or data issues.
Heat resistance has not been a problem. Even during longer shooting sessions, the card does not overheat or cause performance slowdowns. It fits securely in the camera and has not caused any connection or recognition problems.
Overall, this card is easy to use, dependable, and performs exactly as advertised. It has been a solid choice for my camera, and I would confidently buy it again.
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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.
Product Protection by After Solutions
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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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FREE delivery Wednesday, April 29
FREE delivery Wednesday, April 29
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From the manufacturer
SanDisk Extreme SD UHS-I card
The SanDisk Extreme SD UHS-I memory card delivers performance that lets you take control of your creativity. With shot speeds of up to 70MB/s* [128GB-256GB] and UHS Speed Class 3 (U3)(2) recording, you’re ready to capture stunning high-resolution, stutter-free 4K UHD video(1). Its 150MB/s* [64GB-256GB] transfer speeds mean you can quickly move your photos where you want them. Plus, it’s built to withstand weather, water, shocks and other less-than-ideal conditions so you can rest assured that it’s good to go wherever you go.
What’s in the box
- SanDisk Extreme PRO SD UHS-I card
At a Glance:
- Read speeds up to 150MB/s* [64GB-256GB]
- Perfect for shooting 4K UHD video(1) and sequential burst mode photography
- UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)(2)
- Built for and tested in harsh conditions(3): temperature-proof, waterproof, shock and x-ray proof
Shot Speeds up to 70MB/s* [128GB-256GB]
Perfect for capturing the action as it happens, without missing a beat.
Transfer Speeds up to 150MB/s* [64GB-256GB]
Accelerated transfer speeds, so you can find your best shot faster. Recommend using with the SanDisk SD UHS-I Card Reader (sold separately).
Perfect for 4K UHD Video(1)
Sometimes speed is what you need. The SanDisk Extreme SD UHS-I card delivers the performance to capture stunning, uninterrupted 4K UHD video(1).
Stunning Sequential Burst Mode Shots
Rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)(2), the SanDisk Extreme SD UHS-I card lets you capture sequential burst mode shots without missing a beat.
Durability You Can Count on
Built for and tested in harsh conditions(3), the SanDisk Extreme SD UHS-I card is temperature-proof, waterproof, shock-proof, and x-ray-proof.
Recover Images You Accidentally Deleted
Includes an offer for RescuePRO Deluxe 2 Year data recovery software(4) which lets you restore images you accidentally deleted.
Legal Disclaimers
Not all devices support SDXC. Check with device manufacturer for more details.
*Up to 150MB/s [64GB-256GB] read speed. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 70MB/s [128GB-256GB]. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes
**1GB=1,000,000,000 bytes. Actual user storage less.
(1) Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors
(2) UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS 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.
(3) Card only
(4) Registration required; Terms and conditions apply
Product information
Warranty & Support
Product Warranty: For warranty information about this product, please click here
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Customers say
Customers find the SD card reliable, with one mentioning it works out of the box, and appreciate its high quality and value for money. The memory card offers great storage capacity, with one customer noting it can hold up to 224 minutes of 4K video, and features very fast read/write speeds that allow quick laptop transfers. It is compatible with various DSLR cameras, including Sony A6300, and delivers high picture quality, with one review highlighting its 20-megapixel resolution capability. Customers praise its durability, noting it lasts a long time.
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522 customers mention reliability, 441 positive, 81 negative
The memory card works great, I use it in my Canon 7D mark II and it works great. It is fast, about 100mbs when I move video files off it to my PC....Read more
...They are reliable and fast enough to capture 4k video and photos in my gear without any noticeable issues....Read more
I needed this to record effectively in 4K. It does that, and works well, which seems like a given....Read more
...Other than that, the card that was delivered is legit and works fine.Read more
388 customers mention quality, 375 positive, 13 negative
What can I say that hasn’t already been said. This is a great product that will treat you as well as you treat it well. I bought this for my...Read more
...I would recommend and also purchase again. Thank you for a good product. My camera and I love it.Read more
This is a great card it doing 4k. But lock switch on side flips on a lot. If lock switch slides down just slide it back up to unlockRead more
Great SD cardRead more
317 customers mention value for money, 305 positive, 12 negative
...A good amount of storage and write speed for a great price. Definitely going to buy this again if Ii need more memory cards.Read more
Great value. I use it in my high resolution camera. Never a problem taking multiple pictures in sequence at hi-res. Movies are also not a problem....Read more
Good price, value for money! I love these cards for my Sony FS5 Camera, they take slomo and are are fast for transfer too! Fantastic!Read more
...This 238 GB Extreme SDXC card is Fast, and a good value so I got several in order to have available for shooting video....Read more
260 customers mention storage capacity, 242 positive, 18 negative
Great storageRead more
Fast cards with great storage capacity. They have worked in every single thing I have used them in.Read more
...They are fast, great capacity and value. I never had any problems with these cards. They work great, durable and last. 5 starsRead more
Easy loading good storage and valueRead more
248 customers mention speed, 229 positive, 19 negative
I use these cards professionally - with my Sony A7III camera. They are fast, great capacity and value. I never had any problems with these cards....Read more
...Read and write speeds are perfect for any device. They are very fast. Easy to install in any device. Fit snuggly. SanDisk has always been top tier.Read more
Works like a charm. Super fast and reliableRead more
Another quality product from SanDisk. Fast card, very reliable at an excellent price. Fast delivery with Prime.Read more
100 customers mention camera compatibility, 87 positive, 13 negative
45 customers mention durability, 32 positive, 13 negative
...I have the other one as a backup. Get it now!!! Durable, quick loading times, it’s called the Extreme for a reason. Love this card.Read more
It works well and it's big so I can put lots of pictures on it. Pretty sturdy too!...Read more
Card failed after 2 months and 3 hour long sessions. Right after return window closed. Ridiculous.Read more
Excellent. Have reordered a few times as they are very durable and last a long time.Read more
42 customers mention video quality, 41 positive, 1 negative
Storage > Speed
Having UHS-II is nice but having more memory cards with lots of space is better than having less cards because like all things, it's not a matter of "if" it will fail but "when"—so load up on lots of SD cards. Don't get too big because if you lose that card, that is a lot to lose. Everyone who buys memory cards should test if it's fake, so if you're on Mac, try Disk Speed Test by Blackmagicdesign. If you're on Windows, I recommend h2testw. 1. Insert your SD card into your computer 2. Run h2testw.exe 3. Select “English” 4. Click “Select target” 5. Select your SD card’s drive letter 6. Ensure “all available space” is selected 7. Click “Write + Verify” 8. Wait until the process is completed The test took about 30min for me. The time varies due to SD card size. If the test finished without errors, your SD card is good and you can delete all .h2w files on your SD card. If the test shows any other results, your SD card may be corrupted or damaged and you may have to return/replace. I bought 4x of SanDisk 128GB when it was $24 for my mirrorless. It's Sandisk—reliable, durable, and best bang for your buck.
Top reviews from the United States
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- Reviewed in the United States on November 27, 2019Capacity: 128GB*: CardVerified Purchase
Having UHS-II is nice but having more memory cards with lots of space is better than having less cards because like all things, it's not a matter of "if" it will fail but "when"—so load up on lots of SD cards. Don't get too big because if you lose that card, that is a lot to lose.
Everyone who buys memory cards should test if it's fake, so if you're on Mac, try Disk Speed Test by Blackmagicdesign.
If you're on Windows, I recommend h2testw.
1. Insert your SD card into your computer
2. Run h2testw.exe
3. Select “English”
4. Click “Select target”
5. Select your SD card’s drive letter
6. Ensure “all available space” is selected
7. Click “Write + Verify”
8. Wait until the process is completed
The test took about 30min for me. The time varies due to SD card size.
If the test finished without errors, your SD card is good and you can delete all .h2w files on your SD card.
If the test shows any other results, your SD card may be corrupted or damaged and you may have to return/replace.
I bought 4x of SanDisk 128GB when it was $24 for my mirrorless. It's Sandisk—reliable, durable, and best bang for your buck.
Images in this review
Top reviews from other countries
- DaveReviewed in Canada on February 2, 2026
Canon T7 approved!
Capacity: 256GB*: CardVerified Purchase -
XbcReviewed in Spain on October 3, 2023
Tarjeta para cámara de fotos
Capacity: 128GB*: CardVerified Purchase - Sébastien FiliatraultReviewed in Canada on August 12, 2021
Best for outdoor use
Capacity: 16GB*: CardVerified Purchase - Jack BajouriReviewed in Singapore on February 15, 2023
Perfect ...for my cameras,
Capacity: 128GB*: CardVerified Purchase -
