I have "Express Card USB 3.0 adapter" like this (it's in polish so I add to it Google translation, forgive that)
and I'm wondering what's wrong? Such adapters idea or my hardware, because I was copying a movie to USB 3.0 pendrive. Nautilus told me it was about 20MB/s.. . It's kinda slow for USB3.0, then I pluged the same pendrive to USB 2.0 and result was similar, like 20MB/s.
Why? Do I need a better driver or such adapters don't work? I use:
Linux ub-alef 3.8.0-22-generic #33-Ubuntu SMP Thu May 16 15:17:59 UTC 2013 i686 i686 i686 GNU/Linux