yes I used a custom usb hub I made,it can power upto 4 devices but I only used 2
there is also another usb board I have used but I had to remove 2 usb plugs from it to make it fit but also works nice.
a leo bodnar usb button board bbi-32 for buttons and encoders and a pro micro to control the screen and leds.
I have a Simucube 1 for sale with Biss-C encoder; purchased from Simracingbay
great condition & never abused or had any problems with it; works flawlessly
comes with all accessories
Located in VA.
asking 850 + shipping US dollars; pictures upon request