 The VAX 8300 was a dual-processor variant of the VAX 8200 and, with the VAX 8800 introduced on the same date, was among the first multiprocessor VAX computers.They used the KA820 CPU module containing a V-11 microprocessor operating at 5 MHz (200 ns cycle) and supported a maximum of 128 MB of ECC memory.It had one VAXBI bus and support for an optional Unibus.