The Intel USB 3.1 rear ports on my PRIME z370-a always run at about the half the speed (44MB/s) of the rear USB 3.1 ASMedia port (78MB/s) when connected to an external drive. Benchmarked with ATTO.Swapping around the external drives and cables has co...

HiI have a new PRIME z370-A which has 2 ports usb 3.1Gen2 via the onboard ASmedia controller - no problems with it.However when I plug in my MAXTOR M3 2TB USB 3.0 drives into any of the 3.1 or 2.0 ports controlled by the onboard Intel Chipset video f...