Summary: Well I have owned this sandisk 32GB ultra sd card and for 2months (I originally got it more my galaxy s2 which it was compatible with but hours later I upgraded to my current galaxy s4) and up until today it work perfectly I have no complaints with it's write or read speeds, but now it will not mount at all. It just unmounted on its own and will not remount to my s4 s2 or my laptop meaning I can't retrieve my music videos or pics.
Summary: Got this for my Samsung note 3. Great transfer rate and speed. The main complaint is with shipping, since the post Office has moved from Norfolk Va to Richmond Va all mail takes one to two days longer. If you want it faster pay for shipping.