267 of 271 people found the following review helpful:
5.0 out of 5 stars
A genuine 'Class-6' SDHC card for the price of a 'Class-4', July 13, 2009
This review is from: SanDisk Ultra 16 GB Class 4 SDHC Flash Memory Card SDSDRH-016G-A11 (Personal Computers)
The labeling of this item (
SanDisk Ultra II 16 GB SDHC card) is very confusing. On the front side it claims a maximum speed of 15MB/sec. At the same time, it is marketed as 'Class-4' (which means a minimum read/write speed of just 4MB/s). To move up to a 'class-6' card from the same manufacturer, you have to buy the
SanDisk 16gb Extreme III SDHC card which costs 2-3 times more.
I decided to take a chance with this Ultra II card, even though my new
Canon EOS Rebel T1i explicitly requires a 'Class-6' card for video capture. I'm happy to report that the card is fast enough to keep up with my camera, even in burst mode and in 1080 HD video mode.
My own benchmark (see 'Customer Images') revealed that the read speed of this card is consistently fast at 18-19MB/s. But its write speed is strongly dependent on the data file size:
- For small files of 1MB each, the card is only able to write at about 6MB/s. That means it qualifies as a borderline 'class-6'.
- For typical photo files (4-6MB each), the write speed is much faster at around 10MB/s.
- When writing a huge file of 1GB, the card can actually achieve the claimed maximum speed of 15MB/s.
The SanDisk Ultra II may not be a good choice if you want to use it as a ReadyBoost device (frequent writing of smaller file). But when used in digital cameras, this 'class-4' card is just as fast or even faster than other brands of 'class-6' cards (such as the
Transcend 16 GB SDHC Class 6, which levels off at 11MB/s for large files). This makes the Ultra II a great value - especially for those people who prefer to stay with a trusted name brand.
[Update on Nov 18, 2011]
At the time of my original review, this Sandisk Ultra card was marketed as a 'class-4', while the Extreme card was called a 'class-6'. But now the Ultra is called 'class-6' while the Extreme is 'class-10'. I strongly suspect it is just marketing people playing tricks with definitions of 'class-4/6/10'.
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47 of 52 people found the following review helpful:
5.0 out of 5 stars
Works great in a Nikon D80, August 24, 2008
This review is from: SanDisk Ultra 16 GB Class 4 SDHC Flash Memory Card SDSDRH-016G-A11 (Personal Computers)
I received this item in only a few days even with free shipping. I took it vacation for use in a Nikon D80. I've been shooting simultaneously in RAW and JPEG and didn't want to be limited by my memory card. I will NEVER fill this card up before I get back to a computer download my pictures. It's actually pretty ridiculous how much room there is on the card. I recommend it because it works great and it has a huge capacity. I should also mention that I have never had an issue with a SanDisk memory card. I used a 2 GB Sandisk Ultra II SD card in my Nikon P5000 for the year prior. I could have just stuck with that card but I wanted more space. If you are taking pictures, even when each shutter click records two very high quality copies at the same time, you will be hard pressed to fill this card up.
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59 of 67 people found the following review helpful:
5.0 out of 5 stars
A Great Hardy Disk that is Hard to Find!, May 18, 2008
This review is from: SanDisk Ultra 16 GB Class 4 SDHC Flash Memory Card SDSDRH-016G-A11 (Personal Computers)
I bought a set of SanDisk Ultra II 16GB/15MB SDHC Cards at the recommendation of my camera rep. I checked many stores and, IF I WAS ABLE TO FIND this card, (only 1 of 7 stores had it) it's only sold at list price. Fortunately, amazon.com had the SanDisk Ultra II 16GB/15MB SDHC Card in stock and at a savings.
If you're shooting HD video, this disk is ideal. I'm able to film hours and the quality is outstanding. Using the disk over and over has not reduced the quality of the recordings. Another advantage is convenience. I popped out the card, put it in my computer (I use MacBook Pro) and while I was downloading the contents, I put in another card and I'm back shooting in minutes. Save time and money without fear of less than great quality. The disk comes with the SanDisk Micromate for convenience!
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