An HDB8236 HDEC Series small form factor backplane has a size flexible enough for integration into small shoebox-style computer chassis, or combined with multiple backplanes into a single 5U rackmount computer for two-in-one system consolidation. This multi-system within a common enclosure integration approach enables divergent software applications to be totally isolated, yet does not require physically separate computer systems; thereby, saving on the total costs of system ownership and integration. This innovative HDB8236 HDEC Series small form factor backplane design supports five industry standard x16 PCI Express 3.0 plug-in cards that directly to the processors located on the backplane’s HDEC Series system host board.