On Sun, 11 Oct 2015 10:21:45 -0500 "Jonathan A. Kollasch" <jakll...@kollasch.net> wrote:
> Either should work. I'm not aware of any USB 3 controller that isn't > XHCI. But obviously you'll have a bandwidth limit issue for SuperSpeed. > SuperSpeed is like 600MB/s, conventional PCI is only 133MB/s. Even > 1st-gen PCIe x1 is only 2.5Gbit/s, half the bandwidth of a USB 3 port. > 2nd-gen (5Gbit/s) PCIe x1 is really the way to go. The typical portable USB disk is not going to achieve anywhere near 600MB/s to/from the platters anyway. If I can have 80MB/s with slightly lower I/O latency than USB 2.0 I would still consider it a winner. This seems like it could be possible.