I have 2 of these ScanDisk Ultra 32Gb class 10 microSDHC cards.  One for my Acer Iconia A100 Android tablet and one for my Linux laptop to move files around.  I've formatted both differently to make them fit best for their hosting operating system and both are working great.  No issues and great performance.I can stream 1080p movies from these cards without hiccups.I also used one of these cards in my 1080p camera and had no issue whatsoever keeping up with writing speed.Great card.