Cybernet Space Cube

Not a Rubix

The Cybernet Space Cube is a device featured during the Generation 2 television series. Consisting of multiple sliding panels and monitors, the Cybernet Space Cube provided a visually striking means for scene changes during programming broadcasts. What function the Cybernet Space Cube actually served, aside from its unique form of visual stimulation, is unknown.

From Teletraan I: The Transformers Wiki, a Wikia wiki.