I purchased this card on a daily lighting deal for my new Samsung Galaxy Note II. It was recognized without issues. I connected it with its adapter to my computer's card reader to transfer about 3Gb of data and the best consistent transfer rate (average) was roughly 13Mbps... That's less than %50 of the advertised transfer rate.To be fair, I've used the same external card reader with my Sony HX100 digital camera with an SD card (16Gb class 10) and I get double the transfer rate of what I've gotten for this card.Here is the setup:1- SD Adapter included with this card.2- External 12-in-1 USB 2.0 card reader connected to a USB 2.0 port on my PC3- Files transferred were of varying sizes.4- Transferred from 2TB Seagate X2 SATA3 HDD (connected to SATA2 port)5- Windows 8 Enterprise x64 (oh yah baby)The only excuse I give this card for its bad performance is the files were relatively small sizes but some of them were as large as 50Mb... This still does not justify the very low transfer rate.I am not really picky because this card will reside inside my super phone but still it does not justify the money paid for this card.I hope this will help others.