Review on 💾 SanDisk Industrial 8GB Micro SD Memory Card Class 10 UHS-I MicroSDHC with Card Reader Bundle by Johnny Bloomer

The microSD cards seem good, functional and faster than class 10 requires. Revain even sent me a second one that doesn't work either. 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 a Macintosh, I measured over 31 MB/s writing and over 63 MB/s reading. This means they exceed the technical requirements.