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When incredible speed and total reliability are shoot-critical
On professional photo shoots where everything changes in the blink of an eye, SanDisk Extreme IV memory cards let you catch the shot, just as you imagined it. Delivering unmatched responsiveness and all the space you need, you’ll never miss a thing. Reliable in the most severe environments, SanDisk Extreme IV 45 MB/s Edition cards let you get more out of your DSLR or advanced camera—because your work deserves nothing less.
SanDisk Extreme® IV cards include SanDisk’s exclusive RescuePRO® Software, our leading-edge media recovery technology, so you can bring accidentally deleted images and files back to life.
![]() ![]() *1 gigabyte (GB) = 1 billion bytes. Some capacity not available for data storage. **1 megabyte (MB) = 1 million bytes; X = 150 KB/sec; based on internal testing; performance may be lower depending on host device. ***Excludes Germany and other regions which do not recognize limited warranty. |
![]() Just add a SanDisk Extreme® FireWire Reader (sold separately) to speed your transfers that much more |
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Choose SanDisk, the minds behind flash memory
As the pioneers of flash memory, SanDisk is known all over the planet. Wherever people take pictures, listen to music, use cell phones—or do much of anything at all with digital devices—they’re likely to be using a SanDisk memory card. That’s because, after 20 years in the business, SanDisk has never stopped innovating.
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Most Helpful Customer Reviews
15 of 15 people found the following review helpful:
5.0 out of 5 stars
Make sure you have a UDMA camera,
By devcon (NorCal) - See all my reviews
This review is from: SanDisk 8 GB Extreme IV CompactFlash Card ( SDCFX4-8192-901, US Retail Package ) (Personal Computers)
First off...make sure you have a UDMA compliant camera or you will be spending extra money that won't offer any benefit. If you're camrea doesn't supprt UDMA, don't come back here and whine that it's slow. In fact it may cause problems but from what I've read those are few and far between.
Secondly, the Extreme IV is actually rated at 45MB/s now (UDMA). If you order a card and it's not 45MB/s, send it back as it's old stock. As for the performance of the card, it's a perfect match for my 50D. I use a number of them while shooting sporting events and they keep up just fine with the 6.3 FPS the 50D can do. Never had one fail on me even in less than perfect conditions. If you have a UDMA compliant camera, give this card a shot. If you don't have a UDMA compliant camera, go for the Exteme III.
52 of 64 people found the following review helpful:
1.0 out of 5 stars
WATCH OUT FOR THE FAKES! DUMB & DUMBER ON THE LOOSE,
By
This review is from: SanDisk 8 GB Extreme IV CompactFlash Card ( SDCFX4-8192-901, US Retail Package ) (Personal Computers)
Well, I've seen some dumb things before, but when Amazon allows an afiliate vendor to sell counterfeit ExtremeIV 8GB cards, now that is dumb. Especially, since the vendor was brand new to them (obviously not vetted). I bought the card from these guys just to see if it was going to be fake or not. And sure enough as soon as I got it I called SanDisk and what do you know, counterfeit as a 3 dollar bill. About the only thing that could be dumber is for SanDisk not to find a solution for this problem and lose many potential customers because of the uncertainty. BTW These are really convincing fakes, including the high quality retail packaging, the software included, even a little zipper pouch that says SanDisk on it. Maybe it will be best not to buy expensive SanDisk for some time to come.
20 of 23 people found the following review helpful:
1.0 out of 5 stars
BEWARE - My Card was a FAKE!,
This review is from: SanDisk 8 GB Extreme IV CompactFlash Card ( SDCFX4-8192-901, US Retail Package ) (Personal Computers)
BEWARE:
I bought a Sandisk Extreme IV from AMAZON and it would not work properly and finally went dead completely. I contacted Sandisk and they absolutely documented my card as a FAKE, not an authentic Sandisk. I really expected better than this from AMAZON! I guess I am stuck. Below is the actual response from Sandisk. Dear Mark, Thank you for contacting Sandisk. We have received your email with photos. Unfortunately the photos show that the card is not an authentic Sandisk card. Take card back to vendor and inform them of our decision. Best regards, Segundo Rma dept.
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