Have so far not many SD cards used, but I have to say that I am very satisfied with the data transfer rates. Is so far the fastest SD memory card that I could use and at a very fair and reasonable price of just over 11 (as of December 2010).
Currently the card in a Canon digital camera (Canon PowerShot SX210 IS Digital Camera (14 Megapixel, 14x opt. Zoom, 7.6 cm (3 inch) screen) black) used and fully directed there tadelose work, this also applies when dubbing the photos / videos to your PC or laptop.
I admit rare 5 star, but here I have no choice - I have nothing to criticize.
Delivery of Amazon was like (so far) always absolutely fine (even though it took account of the poor weather conditions and the holiday shopping a little longer than the usual 2 days)