Customer Reviews
Lightning Fast 
2008-07-07
I bought this card for my G9 and I am very impressed by what this little card can do.
The only other card I've used is the 8GB Extreme III, so I can't really say how much faster it is from other types, but I love the amount of storage and I found that burst mode was very effective with this card.
Another SD format and one of the fastest 2008-06-29
SanDisk has so many versions out there, it is kind of confusing. This is a different Ultra II then the 2GB that were sold last year. This 4GB Ultra II is "SDHC" (Secure Digital High Capacity), which the 2GB was just an SD card. Regular SC cards are more compatible with most digital cameras and memory card readers. "SDHC" card are for the latest cameras and most DSLR, which can be read/write on SDHC card reader only or just the latest card reader.
Compatibility:
This does work fine with my DSLR Nikon D40. I could not get this new SDHC card to read on my 6 month old card Sony's Card reader nor my 2.5 years old Canon PowerShot SD400. But if you use the USB SDHC reader it worked fine and faster.
Performance
Maybe I got an OEM version, but it said it is a class 4 and 15mb/s. I ignore whatever speed SanDisk write, since I never get that performance. My old 2GB Ultra II said 10mb read/9mb write, but I only got like 6.5mb read/ 5mb write. This 4GB said 15mb, but I only get an average of 8mb read (copy) it peaked at 9mb once and is 6-7mb write. A class 4 has minimum of 4mb of write speed, which is true, this is more in line with a class 6. These information is shown on Window's Vista detail pop-up screen when you are copying or writing files.
Overall it is a great price and is one of the fastest performance I got from an SD card. I just had to upgrade for a SDHC card reader.
love it 2008-06-24
This memory card is great. It holds thousands and thousands of pictures on high quality settings which is great for me so I don't have to keep uploading pictures every few hours.
Not a genuine ULTRA II Sandisk card 
2008-06-23
Have been using this card for two months, it works well, no errors, no lost files, etc.
However, the advertised speed for SD Ultra II series is around 10MB/s reading and 9MB/s writing. This card does not go over 2.85 MB/s in either case. Additionally, it doesn't look like SD Ultra II 4GB shown on Sandisk.com.
At this price, I guess it is not a bad deal, however, it is as slow as my old 2GB No-name SD card.
Its better than Extreme 3 2008-06-22
I was trying to buy a 4gb Extreme 3 but i couldnt find one I already have 2 Extreme 3 each 2gb. This one gives me alot of space for my nikon D80's RAW pictures and i have had no problem with speed or any thing else since i had it . where as Extreme 3 is giving me alot of problems in transfering pictures from SD to my hard drive and i have called Sandisk 2 times as they say Extreme 3 has a life time warrenty but nothing has been done so far. Extereme 2 is the best deal if you want to have a problem free digital photography . The price is really good.
A steal at these prices! 2008-06-06
SanDisk is proud to announce our newest format and capacity to the Ultra II SD card family: SD High Capacity (SDHC) 4GB card.To support the higher capacity needs, SD cards are now requiring a different design. The new SD 2.0 specifications - which supports 4GB and up - is called Secure Digital High Capacity(SDHC). The SD Association has created and defined 3 speed classes to help you identify speed and performance capabilities/minimum requirements of SDHC cards and their SDHC host products. Details on the SD 2.0 specification: http://www.sdcard.org or SanDisk.com/SDHC Cards address data (read and write) at numerous speeds. Many factors impede this performance. SDHC guarantees a minimum read and write speed necessary to handle recording high quality video and audio. The maximum card speed may vary, but you can always depend on SDHC cards to meet your SDHC host product's high quality performance requirements.Each card individually packaged in an anti-static bag
great 2008-05-06
great card by sandisk. Fast enough to record 32 FPS 640x 480 video as well.
Simply said - it works and it's a great bang for your buck! 2008-04-27
I got the card from Amazon, actually from one of the guys that sell thru Amazon. It came in time, well wrapped. I was happy!
Stuck it in my Canon camera - it worked great! A lot of room, super fast.
Stuck it in my computer's media card reader - nothing! Used my old card reader - nothing!
I guess this is the price for getting the new tech stuff - it doesn't always work with your old equipment. Oh, well... I went out to Radioshack and bought a ten bucks card reader for the new era SDHC cards. Now I am officially in and cool!
So, the bottom line is that if you want to use this card in older equpment, such as card readers, cameras and laptops - you might want to use smaller cards of the older kind.
Since I was ready to sacrifice for having a large card - five stars for the product. It does what it promises, no problems as of now.
SanDisk Ultra II 4.0 GB 2008-04-14
Works just fine and gives you plenty of storage capacity. Also very cheap (relative to stores) if you buy it from someone who has it as bulk item in a static pack.
Great for added memory.... 2008-03-26
My laptop is working great, I just wanted it to run faster, and using this ultra 4 gig card did the trick. I don't 'game' but do use heavy-usage software for my art - this has prevented software crashes - and am very pleased! I would highly recommend this for those needing a little boost to their laptop! At this price and its easy to install scenario - you can't go wrong - but can go only faster!
