I use the memory card in my digital camera and am very happy with it. The memory capacity is large enough to accommodate the images a day trip (about 820 at a Nikon D7100 in the NEF format) and saved me so the memory card is inserted, go. Compared to the older cards with SanDisk Extreme 45MB / sec data rate, I can not detect any speed increase. Neither the camera nor in the card reader of my laptop.
Who uses an older OS should note that SDXC cards exFAT used as filesystem. But it can be easily play a FAT32 on the map.