Pros: Very fast. After downloading the SanDisk app I was able to move all the photos and music that were previously on my phone, which slowed the phone, to the flash card. There is no lag time using the music or photos and now the phone is much faster. ONly wish there was some way to move some of the apps installed in it.
Summary: I purchased another 64g micro card for my Galaxy note 2. The card got a little wet because of rain that got the phone damp in my pocket. The card stop working and I lost everything. This card is living up to my expectations.
Pros: I use the card in my Samsung Galaxy S4. Great speed and no problems so far with the card. Plays and moves media through the card to phone or vice versa faster than most. Shipping was fast and no problems with packaging.