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  • SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change)
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SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change)

by SanDisk
| 12 answered questions

Price: $79.95 & FREE Shipping
In Stock.
Ships from and sold by True Modern Electronics.
128 GB
Standard Packaging
  • Extreme Speed up to 45MB/sec read/write speeds for faster shot to shot performance and faster downloads.
  • Extreme Full HD video recording with both UHS Speed Class 1 for the new UHS- I Bus I/F and Class 10 for High Speed Bus I/F to capture Full HD (1080p)
  • Extreme Capacities with up to 128 GB capacity for more Full HD video and more uncompressed maximum file size images.
  • Extreme Technology based on new UHS-I bus architecture for increased speed so you'll be ready to capture it all.
  • Extreme Reliability advanced Error Correction Code (ECC) engine improves overall data integrity and reliability of the card during read and write.
  • Extreme Durability built for and tested in harsh conditions; temperature proof, water proof, shock proof, and x-ray proof.
  • Extreme Trust from the flash memory card brand trusted by professional photographers.
17 new from $73.95 2 used from $86.99

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Frequently Bought Together

SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change) + Canon VIXIA HF G30 HD Camcorder with HD CMOS Pro + Canon Soft Case SC-2000 for XA25, XA20, XA10 Professional Camcorder
Price for all three: $1,349.29

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Special Offers and Product Promotions

Size: 128 GB | Product Packaging: Standard Packaging
  • Unlimited Cloud Storage: Never run out of space for all your photos, videos, and files with unlimited storage plans from Amazon Cloud Drive. Try either plan for 3-months free. Learn more


Technical Details

Size: 128 GB | Product Packaging: Standard Packaging
  • RAM: 128 GB
  See more technical details

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This item: SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change)
Customer Rating (5080) (116) (2138) (716)
Price $ 79.95 $ 27.99 $ 54.95 $ 129.21
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By True Modern Electronics WHOLESALE TAG Amazon.com Amazon.com
Memory Storage Capacity 128 GB 32 GB 64 GB 128
Secure Digital Association Speed Class class 10 class 10 class 10 class 10
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Product Description

Size: 128 GB | Product Packaging: Standard Packaging

SanDisk Extreme SDXC UHS-I Card lets you take full advantage of your DSLR or HD camcorder.
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Designed for Professional and Enthusiast Photographers

The SanDisk Extreme SDXC UHS-I Card lets you shoot longer uninterrupted photo or video sessions with your DSLR or camcorder. It delivers extremely fast, reliable performance when taking professional-quality photos or recording Full HD or 3D video (1).

Eight Times Faster Than Ordinary Memory Cards

The SanDisk Extreme SDXC UHS-I Card helps you capture shots quickly--up to eight times faster than an ordinary memory card (2). It offers support for photographers who want to catch split-second action shots and quickly transfer them to their PCs or other devices.

Maximize Efficiency with Exceptional Read Speeds

With extremely fast read speeds of up to 45 MB/s (3), this memory card lets you transfer high-resolution images or Full HD videos from your DSLR or camcorder to your computer without a long wait.


Capture all the action with write speeds of up to 45 MB/s.
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Extreme Write Speeds for Fast-Action Photography

With write speeds of up to 45 MB/s (3), the card lets you capture multiple frames per second, making it an ideal choice for fast-action or continuous burst mode photography.

128 GB of storage space let shoot longer without stopping to download.
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128 GB Capacity to Store Photos and Full HD and 3D Video

The SanDisk Extreme SDXC UHS-I Memory Card was designed for those who need lots of storage for high-resolution photos and Full HD videos. With a capacity of 128 GB (5), this card lets you shoot longer photo and video sessions without stopping to download.

The card lets you capture Full HD or 3D video without skipped frames.
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Shoot Seamless Full HD or 3D Video with UHS-I Technology

The SanDisk Extreme SDXC UHS-I Card is Class 10 and UHS Speed Class 1 (4) rated, allowing you to seamlessly capture cinema-quality Full HD and 3D video. Record a ballet recital, sporting event, or family vacation without skipped frames.

Whether you take your card to the desert or ocean, your shots will be protected.
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Designed to Withstand Extreme Environments

SanDisk Extreme SDXC UHS-I Memory Cards are waterproof and designed to perform from -13 to 185 degrees Fahrenheit. They are also shockproof and X-ray proof, so they won't be affected by an airport's X-ray machine (6). The memory card includes a writeable label and a protective jewel case.

RescuePRO Deluxe software lets you easily recover deleted photos or videos.
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Recover Deleted Photos or Videos with RescuePRO Deluxe Software

The card comes with a one-year subscription to RescuePRO Deluxe recovery software (7). With RescuePRO Deluxe software, it's easy to recover deleted or lost photos or videos and save them to your computer's hard drive--even if the files were deleted months ago.

Legal Disclaimers

(1) Full HD video (1920x1080x30fps) and 3D video support may vary based upon host device, file attributes and other factors. See www.sandisk.com/HD. (2) Ordinary memory cards perform at up to 5MB/s write speed. 1MB=1,000,000 bytes. (3) Up to 45MB/sec read/write speed. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. (4) UHS Speed Class 1 designates a performance option designed to support real time video recording in UHS-I-enabled host devices. (5) 1GB=1,000,000,000 bytes. Actual user storage less. (6)See www. sandisk. com/proof for additional information and limitations. (7) Registration required; terms and conditions apply.


Product Details

Size: 128 GB | Package Type: Standard Packaging
  • Product Dimensions: 0.8 x 0.9 x 1.3 inches ; 0.3 ounces
  • Shipping Weight: 0.3 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00720TE1M
  • Item model number: SDSDX-128G-X46
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (5,080 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: February 9, 2012

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

503 of 523 people found the following review helpful By Amazon Customer on March 23, 2012
Size: 16 GBPackage Type: Standard Packaging Verified Purchase
I just received the card today, so not a lot of time logged... But it is smokin' fast! I had some issues recording 1080/30fps on my D5100 with previous PNY Professional card. Several tests with HD video and consecutive still frame bursts never even hiccuped! I'm 99.4% sure this is going to cure all of the past woes. (The PNY is now relegated to my sweet new Samsung TL500. No HD video on it, so No worries!)

What I wanted to point out to those looking is that this IS the latest 45MB/s SDHC Extreme 16GB card. AND it's at the same or better price as others selling the previous models!

Maybe I'm the only one that's confused about the different versions of the SanDisk SDHC cards. But I searched and searched trying to make sure I was getting the latest card instead of overpaying for old stock. I even contacted SanDisk, and their customer support didn't even know that the Extreme is now 45MB/s! They actually told me that I would have to buy the (now outdated and overpriced) SDSDXP1-016G to get 45MB/s. I researched this for a couple of evenings, and still knew enough to explain to SanDisk that the SDSDXPA-016G is the new version of what they told me to buy, and it's now 95MB/s for the same price!

So here's the breakdown of what I found as of 3/22/12:

Lower price Extreme SDHC:
SDSDRX3-016G - 30MB/s - OLD
SDSDX-016G - 45MB/s - CURRENT (Apparently Brand New)

Higher price Extreme Pro SDHC:
SDSDXP1-016G - 45MB/s - OLD
SDSDXPA-016G - 95MB/s - CURRENT

The cards are all about the same price if you buy the same classification and GB size. (A 16GB Extreme is going to be twenty-five to thirty bucks regardless if it's 20MB/s, 30MB/s, or 45MB/s.)

I don't know if you really need this Extreme card vs. Ultra or Extreme Pro. You can determine that... But don't Overpay for the same performance! Be sure you Get the Latest Version of whichever you choose.
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483 of 507 people found the following review helpful By Gadget_Lover on November 4, 2011
Size: 16 GBPackage Type: Standard Packaging Verified Purchase
The speed of this card may be overkill for standard shooting/filming. However, I use Magic Lantern on my 60D, which is a firmware modification that runs off of the SD card. I noticed that my Transcend 32 GB Class 10 SDHC Flash Memory Card TS32GSDHC10E had a hard time keeping up with some of the functions of the additional software. I decided to give the faster card a try, and the functions (such as magic zoom and focus peaking) work much better now.

Of course, pulling pictures and video off the card is also quicker than with the Transcend. Although both cards are "Class 10," the SanDisk is 50% faster than the Transcend.
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116 of 124 people found the following review helpful By ken32708 on January 11, 2012
Size: 32 GBPackage Type: Standard Packaging Verified Purchase
When I bought the new Canon DSLR camera I got what I thought was a fast memory card for it. The camera would stop "automatically" after a few seconds of HD video which was VERY irritating. The suggested fix was higher speed memory. After installing the Extreme memory the problem disappeared entirely. The price was good and the function is great! I recommend it!
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192 of 215 people found the following review helpful By Paul Gifford VINE VOICE on October 17, 2011
Size: 32 GBPackage Type: Standard Packaging Verified Purchase
After a bit of research I purchased this card when I bought my Canon EOS 60D. I shoot RAW + JPG and have no trouble shooting at full speed with this SD card. Full HD video isn't a problem either.

I've put the card in both my desktop and laptop computers and haven't had any problem reading the images off them.

If you've spent a bunch of money on a DSLR why go cheap when it comes to the storage? A slow card can reduce the performance of the camera if you're shooting rapid fire. After looking at many reviews here and at photography websites I decided on this card and I haven't been disappointed.
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79 of 87 people found the following review helpful By Truth Be Told on March 30, 2012
Size: 64 GBPackage Type: Standard Packaging Verified Purchase
I shoot RAW, 14bit, "lossless compressed". The files are about 20mb in size. I usually take about 2000 pictures at a 10-hour event and 64gb is just the perfect size for this amount of shooting.
I also use dual memory card slots on my camera for instant back up. Which means the time that it takes to clear the buffer is twice as long. That's where the 45 MB/s come into play. Of course there's also the 64gb Sandisk Extreme Pro, which is twice as fast and costs twice as much, but it may be an overkill especially if you're not doing the instant back up.

I think this card is just the perfect compromise between the cost and the speed, but if money is burning a hole in your pocket might as well go for the Extreme Pro version. For my purposes 45 MB/s is plenty.

Btw, this card is a little bit slower in real life tests. The two cards that I bought topped out at about 42 MB/s (obviously it was tested over USB 3.0)
I remember when Sandisk cards used to be 2-3 MB/s faster than the speed they were rated at, even when the fastest cards were only 15 MB/s, but I guess Sandisk isn't trying to make a name for itself anymore so no real need to go the extra mile. I think as long as it's within 5%-10% of the advertised speed it's not a big deal.

Word of advice: make sure that your equipment is compatible with the SDXC standard and can take advantage of UHS-I, because most of the stuff out there isn't, so the card will either not perform at the rated speed or won't work at all.

There's also a 128gb version of this card. I'd go for it if I shot a lot of HD video, but for taking pictures 64gb should be enough.
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162 of 184 people found the following review helpful By Pacerman on December 21, 2011
Size: 32 GBPackage Type: Standard Packaging Verified Purchase
I recently purchased a GoPro HD Hero2 which shoots both video/still pictures and have been very satisfied with the performance of this card. Without going in to what a GoPro can do and why I matched it with this card I will simply say that it handles approx. 5 hours of video time in various settings and easily handles the rapid burst photo setting of 10 photos/sec...fast!
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SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change)
This item: SanDisk Extreme 128GB UHS-1 SDXC Memory Card Up To 45MB/s- SDSDX-128G-X46 (Label May Change)
Price: $102.34
Ships from and sold by Amazon.com
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