An 1100/84 Multiprocessor 4x2 system, in two clusters (could be "partitioned" into two separate systems), including four CPU cabinets, two IOU cabinets, two SIU buffer storage units (16K words each) and 2,096K words of Main Memory (backing storage) in four cabinets, two System Maintenance Units (SMU), two Motor Alternators, a transition unit, and two System Consoles at list price was $5,414,871. in October 1980. This configuration could be rented for $127,764 per month, or leased (5 year) for $95,844 per month. Monthly maintenance was $10,235 on this configuration. It was fairly common to discount list prices for large and/or Government customers.