It was possible to expand the Act Sirius 1 and Victor 9000 via several expansion options. All used at least one expansion slot located on the motherboard. As there are only four expansion slots difficult decisions on expansion have to be made.
Memory expansion was a must for some business machines as some of the more commercial software need more than the standard 128KB or 256KB installed on the motherboard. A maximum of 896Kb could be installed. This could be achieved with one board or more but available slots and future explansion would be a problem.
Below are details of memory expansion cards that were available.
Memory Expansion