Re: USB 3.0.....
Problem with USB3 is that the MB header are still fairly recent and were NOT part of the standard.
Newegg has LOTS of USB3 cards, but none fits your description.
They have either 2 or 4 channels, so, you will get a combination of either:
- 3 external USB3 + 1 internal
- 2 external USB3 + 1 internal header (for 2 more USB3)
Most are on PCIe x1
As the universe is curved, there cannot be a straight answer...