Since RAW + JPEG at 14 frames the cache is full in the Sony SLT-A77, I was looking for an SD card, the wegschreibt the then obtained images afloat. Pro image 24 MB + 6 to 7 MB => 30 MB - there creates even the Extreme Pro 45MB / s hold only 1.5 frames per second. The Extreme Pro with 95 MB / s is actually more than twice as fast.
I have two of them, felt no difference - full marks. The money is well spent.