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About SanDisk

SanDisk Extreme III CompactFlash is designed for serious professional photographers who demand one of the fastest, most rugged, and most durable memory cards on the market. Professional photographers who work under less than ideal conditions expect more from a flash memory card. More speed. More performance. More reliability. SanDisk's new Extreme III card delivers everything you want plus a whole lot more!

That's because only SanDisk Extreme III memory cards feature innovative ESP Technology for the fastest speeds and highest performance. ESP stands for "Enhanced Super-Parallel Processing". Simply put, it means you are getting the fastest read/write speeds available an amazing minimum 20MB per second** sequential read and write speed speed you'll definitely appreciate whenever you find yourself shooting and storing pictures in harsh environments, extreme temperatures or at high altitudes.

Every SanDisk Extreme III CompactFlash card comes with RescuePRO® so you can recover images, documents, mail, video, music just about any digital file, with ease. Built with leading-edge media recovery algorithms, RescuePro lets you preview recoverable data before you try to retrieve it. With RescuePRO's unique recovery algorithm for MPEG audio and MPEG video recovery (MPEG-1/2/3) what you see, and what you hear, is what you can recover.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Reliable (127),Strong construction (50),Excellent interface (46),Lightweight (46),Fast (36),Rugged (22),Versatile (14),Compact (11),Fast write times (8),Great price (3)
No cons (5)
Best Uses:
Digital photography (101),Digital capture (39),Image storage (32),Image transportation (31),Professional cameras (31),Travel (21),Back-up (8),Upgrade (6),Casual cameras (5)
Reviewer Profile:
Enthusiast (68),Professional (49),Beginner (7),Casual user (4)

SanDisk Features

  • 20mb/sec sequential read/write times
  • Designed to meet the critical speed and performance needs of serious professional photographers?lets you quickly capture, view, upload and transfer large image files
  • Built to perform in the most extreme environments and temperatures?from -13º F to 185º F ( -25º C to 85º C)
  • Durable, reliable and thoroughly tested?temperature tested (heat and cold); shock and vibration tested (industrial-grade RTV included for CompactFlash)

Reviews about this item

Review Snapshot®


(based on 139 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Quick and Affordable

I shoot weddings with a Canon 5D and this card has yet to stall on me ever and I haven't got any corrupted files also, which is a great benefit compared to past cards I have had. Great Performance, Great Durability, Great Quality. A+ on a whole!


Most Liked Negative Review


Less than meets the eye

I bought this because it was supposed to be extra reliable and the price was really great. But it was the only memory that failed me, literally in the middle of the jungle. In hindsight, 4 GB is not practical. If you lose it, you've lost a couple hundred pictures. If it fails, you'll wish you had a lot more backup. I'm going back to 1GB memory and won't pay extra for a fancy name.

Reviewed by 139 customers


Never a problem


from Sacramento, CA  -  Photo Enthusiast

I've used this card for a year on my 40D (just shy of 10,000 shots). I shoot everything from fast action to landscapes to portraits. Never a lag, never a glitch -- just flawless performance from the snow of the Sierras to 100+ degrees in the Sacramento valley. Photos upload quickly to the computer, too.


Great performance


from Connecticut  -  Photo Enthusiast

The Extreme III ensures that the limit on my Canon 5D is the download speed of the camera, I am never limited by the memory card. I generally shoot RAW and use three 4 GB cards per outing so as to never risk more than a third of my effort. With that said, I have never had a corrupted or lost image with any of the cards.




from Fort Morgan, CO  -  Getting started

Just started with new SLR and decided on getting 2 Extreme III 4GB cards. Best choice I ever made. Faster than I thought and a top performer. Need to get some more. Cant go wrong. Thanks SanDisk, you convinced this newbee!!!!!




from Hammond,LA  -  Hobbyist/Enthusiast

Works well in my D-300.


Sandisk Memory works great


from Lafayette, LA  -  Professional

We have 6 Sandisk extreme cards, they all work great with zero problems. Cards are used in 3 differant cameras in a professional full-time working studio..never had a problem with one.


Excellent Product


from Maryville, Tn.  -  Hobbyist/Enthusiast

Excellent card. Works well even when shooting in Raw and firing off multiple photo bursts. Well worth the money.


works great


from Indiana  -  Hobbyist/Enthusiast

I just got two of these cards for a trip to some canyons out west. I never had a single problem with either card. Cleaned them off everyday to my laptop - worked great. Fast and reliable. I never noticed them while shooting. No waiting and they can upload faster than my laptop can handle I am sure.


Reliable and fast


from Seattle, WA  -  Hobbyist/Enthusiast

There's not a lot you can say about memory cards unless you've had one go bad. I've had other Sandisk cards and they've been reliable. This one is fast enough for rapid bursts on my D200. I appreciate that they bundle these with an image rescue program and a keychain case.


Great Memory Card


from Minneapolis, MN  -  Professional

I have never used the Extreme IV cards, but these Extreme III cards are excellent. Being a professional photographer, my photos are critical. I know I can trust these cards. Plus, they come with rescue software in case of any problems.

(0 of 1 customers found this review helpful)


Last minute switch and miss a shot


from Torrington CT.  -  Hobbyist/Enthusiast

Although I thought I'd never run out of room taking pics on our weekend races, last year I missed a few good shots at the end of the feature race at the race track because I had to stop and switch to another card... Never Again.. Thanks..

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