Split internal USB pinouts - is it possible?

"Another option is an internal USB expander -- this is basically a hub that connects to internal power and a single motherboard USB header, and provides multiple USB headers and possibly some internal ports.

NZXT IU01 internal USB expansion -- 3 headers, 2 internal ports (8 ports total). Available at various internet retailers.

iBuyPower IES system -- 2 headers, 1 internal port (5 ports total). Have not seen it available except from iBuyPower; does not appear to be available for online ordering from the manufacturer.

These appear to be very niche products; I'd like to know of other similar products."

"If you mean like this:

Then yes it is technically possible, but there are drawbacks:

But if one or both devices draw power
FROM the USB header then the wheels
fall off. A device connected to the
USB header will hang onto the
connection even if the software for it
is shut down and the device is
""powered off.""

See: http://icrontic.com/articles/rewire_usb_ports"

"There are a few possibilities.

One is a card with an internal USB header. Startech do one www.startech.com/uk/Cards-Adapters/USB-2/Card/7-Port-PCI-USB-Card-Adapter~PCIUSB7 but be warned it seems to have compatibility issues with some motherboards (when I put one in my old Maxdata pentium 4 it failed to boot).

Another is an internal hub, NZXT do a couple of models (both already mentioned in other answers here), one is bare-board the other comes with a plastic case, I'm not aware if there are any differences beyond that. I have used the bare-board one successfully to add a media card reader to an old PC.

Another thing to note is that a standard USB header carries two USB ports, depending on what exactly your devices are you may find they only use one of the ports and with some re-wiring you can connect one device to each port."