When I was card for my SLR in search of a larger SD, I was lucky enough to participate in a project of Trnd, were tested at the following cards - the EVO 32GB (I have the Samsung Galaxy S3 Mini tested) and the PRO 64GB (test with a Canon SLR). Here's what I can on the Samsung PRO reports 64 GB SD card: The manufacturer advertises a 5-fold protection: waterproof (up to 24 hours in sea water), temperature resistance (temperatures ranging from -25 ° C to 85 ° C), protection against X-rays (eg airport), Magnetic resistant and shockproof (up to 1.9 tonnes). What I have actually tried was the water resistance to dry than a few hours in the water glass and then all photos were still outstanding. Involuntarily remained the card in the sun in a car, then again, no problems with readability or function of the card. But a competitor had no trouble here. Since the camera is my constant companion and I / 1000-th images do not only on vacation 100, a smaller card is maxed out before. With the Samsung 64GB one must not count what goes and how many pictures are still in there. The speed with which the images / videos are stored on the card, is compared to my original card (Sandisk) better by a mile, especially in burst mode it falls on. The read speed (70MB / s) has convinced me genuine, not an eternal wait for large data volumes. The SD card is in comparison to other cards a bit more intense price, but in my eyes is the price / performance ratio still perfectly fine. The card stands out but clearly from all other (known to me) cards from me 5 stars and a clear recommendation.