Control Universal had a range of different size Backplanes for use with the CUBE system. They accept DIN41612 64-way AB type sockets on a 1" pitch. All side-A connections are joined as well as B28 (IRQ), B29 (NMI), B30 (SYNC). They had un-buffered backplanes with 2, 3 or 4 socket positions or buffered backplanes with 5- to 14-socket positions.
None.