The course is not as fast as the SanDisk Ultra or extreme, which I have here in smaller version, but it's enough for the 400 anyway.
Whats wrong well tested in continuous fire with RAW + JPG Hi-Q.
edit: 24.09.2011
So unfortunately I have to change the recession. The map now causes error in my Canon EOS 400D and can be read on the PC only in rare cases.
With very low Geschwindigkeitz and a reader of the first hour I was able to back up my photos.
Unfortunately, I was disappointed and I had to learn again. Who buys cheap, buys twice.
Get the card now complain and buy me a Sandisk Ultra / Extreme. This version has unfortunately lost my confidence, because pictures are mostly documentation of unique experiences.
Too bad.