Pros: Fast Random write performance (crucial for apps), sequential read, and sequential write performance. Using this card in a USB 3.0 reader connected to a USB 3.0 port, others have achieved 44 MB/s sequential read!

Cons: Only a slight con, but this card costs about 50% more than plain class 10 microSD. However, it is cheaper than the Samsung class 10 microSD, which performs similarly mobile app wise

Overall Review: USB 2.0 reader connected to USB 3.0 port. ----------------------------------------------------------------------- CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo Sequential Read : 18.372 MB/s Sequential Write : 13.057 MB/s Random Read 512KB : 18.703 MB/s Random Write 512KB : 8.554 MB/s Random Read 4KB (QD=1) : 3.150 MB/s [ 769.0 IOPS] Random Write 4KB (QD=1) : 1.957 MB/s [ 477.8 IOPS] Random Read 4KB (QD=32) : 3.590 MB/s [ 876.4 IOPS] Random Write 4KB (QD=32) : 1.960 MB/s [ 478.5 IOPS] Test : 50 MB [D: 0.0% (0.0/29.7 GB)] (x5)