USB 3.0 PCIE x2?

Hello !

Taken from Wikipedia :



So each usb 3.0 connection has what you could call 2 lanes. But physically, I think you would see only 1 lane (though I'm not certain of that).

Usually, I think that USB cards may have many ports, but only 1 lane. So let's say you have a USB 3.0 card with data transfer capabilities of 5GB/s and 5 ports. If 2 ports were in use, each would have a bandwidth of 2.5GB/s. If all 5 were used at the same time, each would have a bandwidth of 1GB/s available.

I hope this answered your question,
al360ex

I agree with your analysis, but I was looking for the opposite: Does someone make a card that has 2 or 4 USB 3.0 ports and can actually support the aggregate bandwidth by having 2 or 4 PCI-E lanes?

Best answer selected by WyomingKnott.

High point makes some models, like this: http://www.amazon.com/HighPoint-Generation-PCI-Express-...

(HighPoint Second Generation Quad PCI-Express 2.0 x4 HBA USB 3.0 Port RocketU 1144B).

You're paying a lot for it.


Which uses a x4 pci-e link and has 4 ports. Need to factor how much bandwidth you'll actually be using though. If you have external hard drives on all ports with a raid-setup, you need it, but if you aren't going to be hitting all the ports at once, 4 ports on one x1 link isn't bad.