My system is older with only USB2 and I just installed a USB3 PCI card with two ports in it. Both ports work and I'm plugged in to a USB3 external drive, but how do I know it's working as a USB3 port and not USB2 at a slower speed? From what I understand it is backwards compatible.
I'm transferring files to it right now (large ones) and I don't see a noticeable transfer speed difference, thus this post.
Thanks.