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SanDisk Extreme SDHC 4GB Memory Card Class 10

Released on 30 January 2008

Manufacturer: SanDisk

4.0 out of 5 (21 customer reviews) | Write a review

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

Lightning-fast speed and professional-grade responsiveness give you the longer continuous shooting performance and faster photo and video transfers from camera to computer, when used with the SanDisk ImageMate Multi-Card reader.

A winning collaboration between card and camera, the 30MB/s Edition is the only card designed to optimize the capabilities of Nikon's D90 and latest D5000 digital SLR camera, for up to 50 percent greater continuous shooting speed than standard SDHC cards. Driven by SanDisk's shared passion for giving photographers the ultimate DSLR experience, Nikon's D90 and D5000 cameras are optimized to take full advantage of the 30MB/s Edition's unique performance attributes.
  • Product Content

  • Key Features:
  • Extreme speed at up to 30MB/second read/write (200X)
  • Extreme capacities available in 4GB, 8GB 16GB and now 32GB
  • Extreme performance designed with SanDisk's Enhanced Super-Parallel Processing (ESP) technology
  • Extreme durability from deserts to glaciers, guaranteed
  • Extreme compatibility with all major cameras with SDHC format such as Nikon, Canon, Panasonic, and Leica and more
  • Extreme confidence backed by limited lifetime warranty

customer Reviews

 Average rating (21 reviews)

 Full speed un-obtainable in the real world?

| | See all zen1zen1's reviews (2)

Top 100 Electronics Reviewer

BEFORE I START, you should note that this website seems to have the habit of changing the product, but keeping the same thread of comments. Older posts refer to additional items included with the memory card, such as a card reader & software, or of the card being of a slower speed (20MB/s). Quite why this is done I don't know. Changing the price is one thing, but when the actual product(s) change, it makes all the past comments in the thread invalid. As a result, we can already see where people here have been mislead into buying based on others comments, & then found they didn't receive what they were expecting. Quite un-acceptable in my book...... Anyway, on to my review ;

This review is for the SanDisk Extreme 4GB 30MB/s Class 10 SDHC memory card. Nothing else is included, except a tiny plastic case which protects the card when it isn't being used.

I bought it at the sale price of just GBP15.99 - an excellent deal at the time, compared to prices found elsewhere. I also bought a similar SanDisk Extreme "Video" SDHC card for the same sale price, rated at a slower 20MB/s Class 6, but with twice the capacity at 8GB.

These cards regularly receive good reviews for being rugged, reliable, & faster performing (though more expensive) than other brands - so I won't go into that other than to say that I agree. However, I wanted to know how the 2 cards I had just bought compared, & whether this Class 10 was worth the extra money (or smaller capacity, depending on how you look at it!)

I used some free speed-test software called CrystalDiskMark, & my newly purchased card reader - the fastest I could find. It is the SanDisk ImageMate All-in-One external USB, also from this website, & claims a max read/write ability of (up to) 34MB/s.

My tests on the 20MB/s card produced results in line with what I was expecting, with the main, "sequential test" giving a read speed of 19.0MB/s & a write speed of 17.9MB/s. However, when I tested the 30MB/s card I got very similar results - if anything, very slightly slower! (I also tested some other cards, & fortunately found them all to be slower than these 2.)

So from this test, I can conclude that either there is no speed difference between the 20MB/s & the 30MB/s cards, or my card reader had max'ed out at 19.0MB/s.

I then speed-tested each card in turn in my camera. I set it up in manual mode, so that all variables remained constant, & then held the shutter-release down so that it took photos at 10fps for 1 minute. For the first few seconds, my camera was able to maintain the full 10fps, as it filled up its internal memory buffer. After that & for the remainder of the minute, the camera had to write directly to the SanDisk memory cards as fast as it could. It managed this in small spurts, as it fired off a few shots, wrote them to the card, & then fired off more shots again, over & over. I repeated this for each of the 2 cards, & compared how many photos each card had managed to capture in the 1 minute period.

My test results showed that there was little difference again between the 20MB/s & the (so-called) 30MB/s card. The 30MB/s card managed to capture maybe 4% more, but if the speed rating is to be believed, I would have hoped for 50% more photos captured. Again, it could instead be down to the limitations of my camera's recording speed & not the card's, but combined with my earlier card reader test results, I doubt it.

Incidentally, both cards are more than capable of HD video.

SO IN CONCLUSION, I have found no real-world speed difference worth speaking of, between this 30MB/s Class 10 card, & the cheaper (half the price or twice the capacity) 20MB/s Class 6 card.

You do the maths & make up your own mind!

 A Great Card

| | See all Ukjock's reviews (3)

I shot with a Canon 450d and I was looking for a reliable and cost effective card. (currently 17.99, at the time of this review)

San Disk are the only card company that I personally trust. I have had bad experiences before with other manufacturers.

I started off with buying 1 card just to make sure that it was as good as their other cards, I have been so impressed than I came back again and purchased another 2.

If I shot in raw mode, which I 99.9% do, I can get about 202 pictures on to the card. If I shot in raw+jpeg I was getting about 170. One night I was out at an event and was shooting in jpeg only and I still had room on the card after 600 pictures. (the jepgs were all in fine large quality)

I am convinced that the cards ability to transfer data at a high speed also helps on the continuous shots, I was getting up to about 8 RAW shots before the buffer on the camera was struggling. When I tried jpeg fine quality I got up to about 72 before the buffer started to struggle.

I can not recommend this card enough.

 Fantastically Fast and Ridiculously Cheap!

| | See all philwoodphoto's reviews (2)

I bought this to stick in my new Canon 450D and it's amazingly quick. It is class 6, so you get a minimum of 6MB/s read and write but in the real world it is far faster - SanDisk quote 20MB/s.
This is listed at £65 from Jessops so you don't have to be a genius to see it is super cheap, and it's dropped from £16.49 to £14.99 since I bought mine last week - a no-brainer really - may as well buy 4 for less money than 1 from Jessops.
I'll be looking to get another one soon and it's still cheaper for 2x 4GB than 1x 8GB. I can fit around 800-900 JPGs shots at large fine (12+ megapixels), so you won't be swapping around too often.
I can also shoot continuously and never run out of buffer - thats nearly 4 minutes of continous shooting at 3.5fps on the 450D!
The reader is very good quality too, with a nice dust cap and both the reader and the card (in its own little case) fit nicely in a soft zip up pouch - nice touch Sandisk.
Overall I'm very impressed. HIGHLY RECOMMENDED!! Buy one now (or 2 or 3 or 4...)! (if your camera can take SDHC)

 Well Worth the money

| | See all hollanda88's reviews (1)

most people aren't going to use 4gb worth of space but may use the 2gb ones. I bought an 8gb card by play and am impressed with that too but the data recovery software which is included in most sandisk products is worth this price alone in my opinion. I have used it many times and recovered files from external hard drives which had been corrupted. AMAZING!!!

 Absolutely first class card & reader!!!!

| | See all Lubricatedgoat's reviews (7)

As long as your camera is compatible with SDHC cards, (make sure folks!) this is simply the best buy out there. Card is as fast as they come (with a 10yr warranty), reader works instantly (2yr warranty) and you get some data recovery software as well. And most importantly of all, a zip up padded card case with a key ring loop. Top quality product at an unbelievable price. Get one now.

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