I've done alot of reading about transfer rate with 2.0 and 3.0. For 2.0 it's 480 MB/s and for 3.0 it's 5 GB/s. Copying a 2GB item from computer to external HHD. Using 3.0 port on my notebook on test 1 it's around 34MB/s and then on test 2 the speed might be 3.57MB/s, and then on test 3, it's around 36MB/s and when the file size get's smaller, the speed starts to slow down. Why can't I get my 5GB/s?