Write rate tested with h2testw and this card reader:
AET white / dp / B001NS829E
Writing: 13.5 MB / s
Read: 17.5 MB / s
Write rate tested with h2testw and this card reader:
PSC = 1
The USB 2 port:
Writing: 17.4 MB / s
Read: 30.4 MB / s
On USB Port 3:
Writing: 17.7 MB / s
Read: 36.6 MB / s
If you put the card in this reader into an SD adapter for large maps it is with ~ 65MB / s read ...