I was originally looking at the Ultra II card for my Canon EOS 40D DSLR camera, but for a few dollars more I bought the Extreme III. It did not disappoint! Extremely fast, and I've used it in colder conditions (about 35 deg F) without flaw. I've dropped it a couple of times (the card, not the camera) and it never fails. I have an older card reader, so I am not sure about its actual transfer rate. Overall, very satisfied!
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