Troy  N.Stennett
I'm using this in a SAMSUNG GALAXY S3 16GB unlocked smartphone and the only problem is as you write more and more flies to the card it gets slower and slower to the point that you'll be so p.o at a crucial moment , say for example you want  to access a video  or doc , that when you do actually get your file you've lost  all faith in the card .So buy it for the capacity but always remember it's not reliable  for fast access.