I use the card in my camera mitlerweile been a few months. I deliberately a slightly longer period for review selected in order to say something about any signs of wear in terms of speed and durability can. To date, the card carries absolutely satisfactory services. I regularly for my YouTube channel (Technology Tested) on videos with this card in my EOS 600D. I always take to 1080p / 25 or 720p / 50 and the write rate has always served. When copying onto the PC it seems to me quite quickly, even if I have never measured the values. It is time not become noticeably slower or similar .. Also, it is not so far failed and had no file system errors, which speaks in my more frequent use of the memory card. All in all I'm very happy with the product and would buy it at the price again and again.