SDSDU-008G-U46 SanDisk Ultra 8GB SDHC Class 10/UHS-1 Flash Memory Card

Working fine

Over the years, I have used many memory cards from the Sandisk Ultra-series. Their earlier cards (such as  SanDisk Ultra 16GB SDHC SDSDRH-016G-A11 ) were called 'class-4'. But later cards in the same series were labeled as 'class-6'. Now this  SanDisk Ultra 32 GB SDHC SDSDU-032G-AFFP  is even marketed as 'class-10'. The cynic in me has to ask: are those the same card being sold at different prices? So I used three different benchmark programs to measure the performance of this Sandisk class-10 card, and compared against my other class-10 SDHC cards of various brands.First, I used a benchmark program called "H2testw v1.4" to find out the write speed for large (1GB) files. This is essentially the same as the sequential-write speed used for SD card speed ratings. To qualify as a class-10 card, the card must be able to sustain sequential-write speed of 10MB/s.Here are the Write speeds for all my class-10 SDHC cards: (Note that their Read speeds are all around 18MB/s, which is limited by the card reader I'm using)-  HP CG790A  : 15.1MB/s-  Transcend TS16GSDHC10E  : 14.6MB/s-  PNY P-SDHC16G10  : 13.6MB/s-  Kingston SD10G2/16GB : 10.7MB/s- Sandisk Ultra 32GB class-10 (this product): 10.6MB/s-  Wintec Filemate 3FMSD32GBC10-R : 10.2MB/sAs we can see, the Sandisk Ultra ranked near the bottom even though it still qualifies as a class-10. This looks disappointing so far. However, the results from other benchmark programs ("Flash Memory Toolkit v2.0" and "CrystalDiskMark 3.01") were more impressive. The Sandisk Ultra card delivered excellent write speed for both large and small files, while most other cards performed poorly for smaller files (see pictures I uploaded to 'Customer Images' section for details).Of course, the REAL benchmark needs to be done in the actual application. For that, I inserted each card in my Canon Rebel T1i, set it to save both RAW and JPEG formats, then took 10 consecutive shots in burst mode. The Sandisk Ultra card ranked right in the middle among my class-10 cards in this case. It took 23.8 seconds to save all 250MB of data. For comparison, my fastest card (HP class 10) took just 16.7s to finish, while the slowest class-10 card (Wintec Filemate) took 28.3s.Bottom Line:This Sandisk Ultra SDHC card meets the minimum Write speed requirement of 'class-10' card, and it performs equally well for writing large or small files. That means it will work reliably in any appliance that requires a class-10 card. However, it is not the fastest amoung all budget-priced calss-10 SDHC cards I have tested. The HP class-10 card, for example, gives 40% faster write speed for about the same price, so it is a better value.

I got the card and it has been a very good card. It met my expectations, but didn't quite live up to the ultra name. Read speeds were as high as 42MBps and Write as high as 15.65MBps. Which for being a "class 10" card means it exceed expectations, but a bit disappointing as the write speeds should be a bit higher. This test was done with a USB3.0 Uspeed card reader (around $10 on amazon). I also tested with a generic Merit-line USB2.0 adapter and came up with lower numbers.-----------------------------------------------------------------------CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo Crystal Dew World : [...]-----------------------------------------------------------------------* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s] Sequential Read : 42.736 MB/s Sequential Write : 15.653 MB/s Random Read 512KB : 40.440 MB/s Random Write 512KB : 10.569 MB/s Random Read 4KB (QD=1) : 5.195 MB/s [ 1268.4 IOPS] Random Write 4KB (QD=1) : 1.915 MB/s [ 467.5 IOPS] Random Read 4KB (QD=32) : 6.496 MB/s [ 1585.9 IOPS] Random Write 4KB (QD=32) : 1.973 MB/s [ 481.7 IOPS] Test : 50 MB [F: 24.8% (14.8/59.4 GB)] (x5) Date : 2013/03/08 21:41:43 OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)Generic USB2.0 Adaptor-----------------------------------------------------------------------CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo Crystal Dew World : [...]-----------------------------------------------------------------------* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s] Sequential Read : 18.623 MB/s Sequential Write : 12.300 MB/s Random Read 512KB : 18.461 MB/s Random Write 512KB : 8.175 MB/s Random Read 4KB (QD=1) : 3.975 MB/s [ 970.5 IOPS] Random Write 4KB (QD=1) : 1.751 MB/s [ 427.5 IOPS] Random Read 4KB (QD=32) : 4.630 MB/s [ 1130.5 IOPS] Random Write 4KB (QD=32) : 1.659 MB/s [ 405.0 IOPS] Test : 50 MB [F: 24.8% (14.8/59.4 GB)] (x5) Date : 2013/03/08 21:48:08 OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)

We have bought over ten SanDisk 64 GB and 128 GB compact flash memory cards in the last five years for the RoadHawk HD dash cams in both our vehicles, a Canon PowerShot G15 compact zoom camera, to store our MP3 music files on the in-car entertainment (ICE) of both our vehicles, etc. We trust the brand and have never had any premature failures. This is particularly noteworthy with the vehicle dash cameras because the duty read/write cycle on a monthly basis is quite high since the cameras record continuously at 1080p resolution then overwrite the data when the flash memory card is full. I highly recommend all SanDisk products and these flash memory cards in particular.

I only use Sandisk SD cards for all my photographic needs. I've never had any problems or disappointment with these products. It's the only brand I trust such that I would buy their products! Of course, one does occasionally get a free SD card, such as a Toshiba-made card that came with my Nikon DSLR, but when it comes to buying them, it has to be Sandisk. They come securely packed and you can choose a frustration-free packaging or standard packaging. I go for the standard packaging as it's not hard to use scissors and I know the product is very securely sealed. Totally recommended. It's always a good idea to check exactly which grade of SD card you need for your particular camera. Whilst it is tempting, if you have the money, to go for the highest performing model, the fact is the best card for your camera is the grade recommended by the manufacturer, as it is the camera's internal software performance in union with the ideal memory card, that produces the best results. Don't waste your money thinking you have to buy the highest grade card. As it happens, Sandisk offers several different grades - standard, ultra, extreme, extreme pro - you pick your capacity e.g. 32GB and your performance grade, e.g. 30 MB/S. As I said, look at your camera manual and then look at Amazon's current pricing and offerings!

After having to switch memory cards during the Olympic football final, I decided to invest in a larger capacity card to go with my shiny new Nikon S6200 compact camera. After looking in the local retailers, I realised that I could get more gigabytes online for roughly the same money as on the high street.Thus I bought the 32gb class 10 Sandisk Ultra, the best I could afford for around £15-£20. What I completely overlooked was the fact that while the card can easily store thousands of high resolution pictures, the rechargeable battery on the camera is only good for two or three hundred before exhausting itself. Yes, I admit it was a bit of a "DOH!" moment once it hit me! As such, I'm only likely to ever use one fifth - if that - of the card unless I decide to purchase and then carry several charged up spare batteries - which is highly unlikely for a casual snapper.Still, that's my own damn fault and transfer speeds are fast enough being a class 10 card. So my overall thoughts are yes, it's cheap for a high capacity, high speed card but make sure you're gonna need those 32 gigabytes. If not, I'd advise buying the same card but with a lower capacity and saving yourself the difference.

It used to be the standard recommendation for those cameras using SD storage to use 2 or 4GB Class 4 devices, class 4 because it was reasonably fast and was the fastest that many would support, and 4Gb as it allowed hundreds of shots at the resolutions which were then common. Today's camera are of generally higher resolution, some more than 4- or even 8-times those of a few years ago and the very small capacity devices now make little sense. Most recent cameras are capable of using faster storage and fully support their use and, with the very large RAW files now possible 8 and 16GB devices are not too large. They can also match in terms of the number of shots possible the power provided by today's camera batteries - change the battery and card together as they usually share a compartment.SanDisk are also one of the largest manufacturers of flash memory devices and are reliable so the combination with an excellent price makes this a must have.Recommended.

Over the years I’ve had many flash memory cards from SanDisk and I’ve never had a single failure.I bought this card to put my entire music collection on for use with my Audi A3’s on-board MMI system. As I was going to be using the card every day I thought it best to buy from a flash memory manufacturer that I trust and know to be good quality.It’s worth checking beforehand that your device is compatible with SDXC cards as some older devices may not be. SDXC is just an SD card with a capacity over 32 GB (4GB to 32GB is SDHC and anything 4GB or less is simply SD)After 6 months of use now I haven’t had any problems (as to be expected really), data is transferred to the card at a great speed and I’m very happy with my purchase. If you need a high capacity SD card that won’t let you down then I would say it’s worth spending a few extra pounds and getting this one.