(crosspost from MacRumors news thread)
Hmm...not convinced by this so called USB 3.0 speed
Lexar 64GB 600x Speed
310 files, just over 5GB of data. iPad Pro, 3minutes 15 seconds
iPhone 6S Plus, 3 minutes 37 seconds
That's not the big difference I was expecting! Desktop PC Lexar USB3.0 reader, 60 seconds for the same data
I suspect that because it is many files rather than one big file, that the speed of transfer is dictated by the processing of the pictures more than the transfer rate itself.