Even with cards, which do not break the "sound barrier" of 30 MB / s, the new Lexmark card reader brings speed advantages. I also own the USB 2.0 predecessor of Lexmark, which is externally identical.
"Transcent Class 6", 32 GB, 11 writing, reading 16MB / s reading the old reader, the new 12 writing and 19 MB / s.
According to the packaging of the card reader also reads SDXC cards - and I had not paid attention because I so do not possess a card, but for the future that's good to know.
I repent's not that I've bought a good piece!