SanDisk 4GB, Extreme Secure Digital High Capacity (SDHC) Memory Card, Class 10

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About SanDisk

When you need speed, go with SanDisk® Extreme III 30MB/s Edition and get more out of your advanced camera with the world's fastest SDHC card.

Lightning-fast speed gives you professional-grade responsiveness, for the longest consecutive shooting performance and faster photo and video transfers from camera to computer, too.*

Guaranteed to withstand even the most severe extremes from Arctic Circle to Sahara Desert conditions Extreme III cards are ready to go anywhere, anytime. Plus, all Extreme III cards include SanDisk's exclusive RescuePRO® Software offer, SanDisk leading-edge media recovery technology, so you can bring accidentally deleted images and files back to life.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Reliable (40),Writes/reads fast (37),Easy to use (34),Great value (26),Large capacity (25),Fast (4),Large capacity / good size (4),Durable (3),Good value (3),Highly compatible (3),High quality (3)
Best Uses:
Portable images/multimedia (30),Storing images/multimedia (14),Cameras (4)
Reviewer Profile:
Enthusiast (27),Semi pro (5),Casual user (4)

SanDisk Features

  • Extreme III 30 MB/s Card Benefits:
  • Lightning fast speeds of up to 30MB/s* read/write.
  • Faster Read speed (up to 30MB/s*)
  • Extreme Capacities available in 4GB, 8GB, and now 16GB
  • Extreme Performance designed with SanDisk's Enhanced Super-Parallel Processing (ESP) technology
  • Extreme Durability from deserts to glaciers, guaranteed
  • Extreme Compatibility - Compatible with all SDHC host devices
  • Extreme Confidence, backed by limited lifetime warranty and Sandisk pro care technical support program
  • Maximize the Ability of your DSLR Camera
  • Optimize Continuous Shooting Capability
  • Offload of images and videos to PC at Extreme Speeds

Reviews about this item

Review Snapshot®


(based on 47 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


Fast and furious

It is a memory card. A most necessary piece of equipment. The class 10 rating is noticeably faster than the class 6 I had prior to this purchase. $ gigs fits about 540 12.3 MB's of photos. I prefer a few smaller cards over 1 big card for the sake of a corruption with 1500 pix on it verses only losing 1/3 of my photos.


Most Liked Negative Review


Had To Replace

Bought this to replace one that had a crack in it. SanDisk would not replace this for me. I'll be buying Lexar media from now on.

Reviewed by 47 customers


Fast enough


from Costa Rica  -  Professional

I have bought some of this SD card class 6 and 10 with 30MB/s speed. They all have been working fine for me and other people to whom i have recommended it


Works flawlessly


from Green Bay, WI  -  Hobbyist/Enthusiast

I have been using Sandisk since I got my first digital camera in 2004 and I have yet to have one fail.


Works well


from Tampa Bay Area, Florida  -  Hobbyist/Enthusiast

Works well.


A Great Card


from PA, Phila. Suburbs  -  Semi Pro

These are great cards and I would recommend them to anyone. I am however, now hooked on the new SanDisk EXTREME PRO cards. Other than these Class 6 cards, even for personal use, I would use either the Extreme III Class 10, or the newer EXTREME PRO super fast cards, which are now my first choice. I still have and reuse my SanDisk Class 6 cards though (mainly if my others are full and it's only personal use), but for the most part, and especially on client assignments I will use, and any new purchases will be for, the San Disk EXTREME PRO (45 MBPS speed). I am amazed at how most non-pro photographers are not aware of the differences in speed and the "class" designations on these cards. I often tell someone about a great card deal and they'll tell me the better "deal" they got for a SanDisk card, not realizing they are Class 4 cards or that there is even a difference. Yes, to each his own, but you DO get what you pay for, and even photography for personal use goes smoother with a higher speed card. So, while one doesn't need the expense of the EXTREME PRO for personal use, I highly recommend considering the higher speed Class 10 cards, and these Class 6 cards are okay, but forget about the "4's." SUMMARY: If you take a lot of photos on an outing or at an event, especially if you do action shots and/or use burst mode, you WILL see a difference with a higher speed (Class 10 or EXTREME PRO) card, and you likely won't go back to the lesser speed cards.


Exactly what you need--but costs less!


from georgia  -  Hobbyist/Enthusiast

I only used SanDisk memory cards. Everyone I know in digital photography uses SanDisk. Because they are RELIABLE!! And here you can get the product you want & need at a most impressive price (actually better than from SanDisk themselves!)


Great Card


from Artesia, NM  -  Hobbyist/Enthusiast

Fast card with lots of space at a good price.


Trusted brand


from Migh High City, USA

There's not much to say other than it's a trusted brand. I use it with a Nikon D90 so it's fast in writing/reading. I don't take videos so I can't comment on that but I'm sure if I did it will be more than enough. Did I mention it's fast!?


Had To Replace


from Carmel, Maine  -  Hobbyist/Enthusiast

Bought this to replace one that had a crack in it. SanDisk would not replace this for me. I'll be buying Lexar media from now on.


Fast and good for video


from Ann Arbor, MI  -  Hobbyist/Enthusiast

Fast, fast, fast... no video crashes using my D90 with these fast cards.


Excellent card for DSLR Cameras


from B'town, IN  -  Hobbyist/Enthusiast

I've always had great results with SanDisk memory cards. Fast write times and transfers to the computer. I am also using a SanDisk card reader. I have two of these in 4GB and one 8GB. Very reliable.


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Shopper  Why Did You Choose This?
ADRIENNE H  Good value, good price, quick service.

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