Bought 2 of these for my Canon 600D and they can handle much more than what I can throw at them.
Continuous shooting in RAW and 1080p @ 30fps video - not a problem.
In fact, with the highest video quality setting, my camera does around 9MB/s write; this card takes a max of 21MB/s.
I cannot believe how cheap this is for the quality of the product, and I have told everyone who needs an SD to get these.