So the card got in my Canon 550D indoors and works really great so far. Write and Read runs on the map super also with the RAW formats with 20 MB. The accessories such as waterproof and shockproof are nice but doubt it, I'll throw the SLR eventually into the water =) The main reason that I got myself the are the 10-year warranty and normal Samsung has always good hard drive and so produced. But resistance to the magnet is total rubbish, since SD cards has ehh nothing to do with magnets. Nevertheless 5 stars