Hi, it's a Y-Cable. I will edit the original post for clarity.Splitters?? Do you mean a USB hub? As far as I know you are not able to use a usb hub, the cables need to be directly connected.
With they Y cable directly connected you also need to make sure the main cable is in the correct port on the Wii or Wii U, the secondary cable is just for additional power and can go into any port.
I have the Data USB going into Port 0 and the Power cable going into the other port. I've done all the troubleshooting and it's either the drive that WiiFlow can't properly talk to or the Y-Cables I am using don't play nice with the WiiFlow.
Last edited by TheNintendoEnthusiast,