I think this Sony SF8U Class4 8GB SDHC Memory Card with SDHC 8GB UHS interface UHS1 card close to the limit to a customer deception, because the picture suggests CLASS 10 while you can see the read then Class4. The card writes really only in Class4 !!!! and, therefore, is slower than a normal current without SDHC UHS interface. The read speed is also never over 20Mbit / s and 40Mbit advertised / s are also reading not reach.
Self No Name Class6 or Class10 faster.
Klarer bad buy, stay away
EDIT 20:02: Amazon has probably now adapted the product display and now will display when you select the 8GB or 16GB also keep the correct product image, therefore (rating changed to 2 stars) should have a "bad buy" by a wrong product image now actually no longer happen. At the low Gschwindigkeit the map that changes but nothing.