I have a computer that has 1.1 usb's on it but I need 2.0 for some devices. Can I just buy a usb hub thats a 2.0 and thats backwards compatibile with 1.1 and that will in turn make it 2.0 speeds. Or do I need to buy a 2.0 usb pci card to make it all high speed. Hope this makes sense to somebody. Thank You.