Attention! Only in UHS quickly in the SDHC card is slow.

The map is in my Fujifilm X100 quite quickly while saving the images. Faster than (m) a normal Class 10 card anyway. This is because the camera UHS dominates. I can not quantify this speed in MB / s, you just noted halt the memory speed of the image sequence.
But in non-UHS-enabled devices mutated the card to a real Schnarchnase.

Both my iMac as well as an external Kingston USB2 card reader can not UHS, so access via SDHC protocol on the card to.
That was conscious, but this card is not even creating the 10 required by Class minimum speed of 10 MB / s.
Writing creates the map as about 9.5 MB / s and read about 16 MB / s.

Therefore, the deduction of points on a star. The card does not meet simply the promised performance.

And before bitching again, which would be the lack of understanding or the wrong equipment.
No, it is not because the mention of "Class 10" guarantees a minimum rate of 10 MB / s writing in SDHC devices.
See also (here was my link to Wikipedia removed) the SD 2.00 specification.

So therefore my recommendation to all those who intend this card to try (also) into non-UHS-enabled devices: saving a few euros and is buying a "real" SDHC Class 10 card, for example, the Transcend Extreme Speed, the in pure SDHC operation is much faster.

PS
This may mean Sandisk Extreme Pro significantly better. This is also a UHS card, but that creates at least 18 SDHC access MB / s write and 20 MB / s read, so much more.