I have the card now 2 1/2 years and never had any problems with it. It is fast and I've never been in the situation that they would be in use with the camera also become anywhere near full. Meanwhile, I have them (also a Transcend) replaced by a newer model with 600-fold speed, because I have a more powerful camera and wants to ensure the highest speed continuous shooting. From buying a larger memory card I have refrained, because I have found that there could be about 32GB out depending on the device to Kapatibilitätsproblemen Memory card. It can also happen that despite a larger memory only 32GB usable (or formatted) are. What you should know and learn definitely on the Internet to do so.