Yes same here. Commander pro to NZXT hub. NZXT hub to MB USB port. A separate node core to MB USB as well. Agree, now that CP is powered externally I get no power loss. Oddly when I did have power loss on the CP it affected many of my other unrelated USB devices including my Logitech 922 webcam. This has all resolved with the external hub. Not sure if this is an ASUS or Corsair issue at this point.