The Cube 3rd gen is a rather polished piece of consumer equipment. It certainly was designed well, with fully enclosed mechanicals, contoured plastic panels and LED workspace illumination. Dual extruders and closed source everything. There's a USB port for the flash drive (A?) and an unused USB printer port (B?) that is marked in the manual as "future use." With the general consensus that 3D Systems is giving up on this item, I doubt there's any future use involved.