When reading almost 62 MB / s, while writing about 38 MB / s, measured with "real life" images from my camera. This will speed up the "net drag" of large images in the PC already clear reading is almost like a HDD.
With a ollen USB 2.0 card reader that works rather less. ;-)
Then you come only to 17 MB / s when reading alone.
So rather invest the 7 euros in a card reader :)