Extremely slow USB transfer rates

Follmann

Reputable
Feb 16, 2014
11
0
4,520
Hello there. I have recently updated my rig with a Asus Z87-PLUS board. But after that and a fresh Win7 x64 install, I'm getting really, really slow USB transfer rates (from 1 to 1.3Mbps).
-My HDD is SATA III and its internal transfer rates seem to be alright;
-All my drivers are properly updated to the latest versions, and so are the chipset, BIOS and the OS;
-I have tried all the USB 3.0 ports in the back (built in the board), and the USB 2.0 frontal ports of my HAF 932;
-I have tested it with several devices.

Any clues on what might be wrong? Thanks in advance.