I don't have too much to say about an SD card, but I wanted to at least give it the 5 stars it deserves. We used it in a Galaxy S3 and it has worked flawlessly so far. I haven't  run any benchmarks to confirm the speed, etc but it does not seem to hinder the phone or camera (which we now have saving photos/videos to the SD card) in any way.I will point out the The S3 camera app did notify us that burst mode shots will still write to the phone's internal memory. Potentially due to the high date of data being written. That's good to know if you use burst mode a lot and were hoping to use an SD card for that purpose.