MicroSD cards seem good, functional and faster than class 10 requires. The card, however, readers other than Stromboli" does not work. Revain even sent me a second one, which also does not work. Since microSD cards work fine with other card readers, there is a suspicion that it was an inferior batch. The cards seem to work fine in devices that support 8GB microSD cards The SD Card Trade Association states that a class 10 card should operate at 10MB/s Using the Black Magic Disk Speed Test on I measured over 31 MB/s writing and over 63 MB/s reading on a Macintosh, which exceeds the technical requirements.
Smartphone ZTE Blade V10 Vita 2/32 GB, Dual nano SIM, graphite black
50 Review
32GB High-Speed Micro SDHC Card - Class 10 UHS-I Compatible Memory Card for SD Devices
63 Review
SmartBuy Classic Series microSDHC 32 GB Class 10, R/W 25/30 MB/s, SD adapter
41 Review
Kingston microSDXC 64GB Class 10, V10, A1, UHS-I U1, R 100MB/s Memory Card, SD Adapter, 1 pc, Black
45 Review