High Quality Content by WIKIPEDIA articles! The Power Mac G4 Cube was a small form factor Macintosh personal computer from Apple Inc. It was sold from 2000 to 2001. Its cube shape is reminiscent of the NeXTcube from NeXT, acquired by Apple in 1996. The machine was designed by Apple industrial designer Sir Jonathan Ive. The New York Museum of Modern Art holds a G4 Cube, along with its distinctive Harman Kardon transparent speakers, as part of its collection.