MF Twister to control more than one device.

[macsearcher]

I apologize if this has been answered on the forum already but I've had no luck with search.
I would like to be able to control more than one device with the Twister. I am sending the USB out to a 1010 Blackbox (which recieves midi though a USB device port) and I would like to send it to my computer at the same time. I don't need to control both devices simultaneously but that would be a plus. I have found some USB Y-Splitter cables but they all seem to only send data on one of the sides.
Thanks in advance for any advice.