The FOCBOX, available in version 1.3, 1.6, and 1.7, was a rock solid single motor controller from enertion. The version 1.3 is also called a “VESC-X” sometimes because its name was changed early on.
The FOCBOX Unity was a “dual” motor controller and as enertion folded, it’s not available new anymore except at the massive stator site which is basically buying Conflict Unities, or taking product that others have already paid for and not received
If you have interest in those products, you should check out instead:
FOCBOX: look at the @torqueboards TB6 controller
Unity: Look at the Lacroix Stormcore 60D controller