Strange situation... I just bought a oem class 10 32gb microsdhc (same company that makes the sandisk ones), from a trusted seller, as usual I did run the h2testw on it before paying the guy, it did have 32gb, 10mb/s writing and 18mb/s reading... (tested on a regular card-reader from my notebook). So I bought it and put it inside the atrix, format it on atrix (fat32) and tested the speeds with sd tools benchmark, and got the same result, BUT... when I try to read or write anything on it, from inside the atrix, with the usb cable connected to the pc, the writing speed is only 4mb/s, reading 10mb/s. AND if i try to copy anything from the atrix memory to the card memory using the windows explorer, it is even worst.
So why the atrix can use all the speed, and the notebook can use all the speed if connected on the sd card reader, but the computer cant use all the speed if connected trought usb cable on the atrix???
Is there any better drivers than the ones from the motorola web site (windows 7 64bits)????