Quote:
Originally Posted by Glorfindel
and if you are using a usb card reader on a slow computer with USB 2.0 the data wouldn't be supplied fast enough for the card to write at full speed. Not sure if the same goes for intigrated readers but I'd assume so.
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The different classes denote the following minimum sequential write speed:
Class 2: 2MB/s write
Class 4: 4MB/s write
Class 6: 6MB/s write
Class 10: 10MB/s write
I don't think USB 2.0 is going to be a bottleneck when it comes to writes. For UHS-I capable cards and readers, then yeah, it can be a bottleneck. Unfortunately, the different classes for UHS only pertains to read speed and have no bearing on write speed.
Mind, Amazon's running a sale on micro/SD cards. The Sony 64GB microSDXC is $35.99 and that's another good brand from my experience. Performance is in between SanDisk Ultra and Samsung Pro (Samsung being the best I've used so far). I think the SanDisk Extreme might perform better but the price tag is significantly higher.