13-slot dual-system backplane with system 1 having three PCI slots and three ISA slots and system 2 having four PCI slots and three ISA slots

12-slot backplane with four PCI slots and seven ISA slots

10-slot backplane with four PCI slots and five ISA slotsS

10-slot backplane with four PCI slots and five ISA slots

8-slot backplane with four PCI slots and four ISA slots

7-slot backplane with four PCI slots and three ISA slots

2U chassis backplane with two PCI slots and two ISA slots (AT mode)

2U chassis backplane with two PCI slots and two ISA slots

6-slot backplane with four PCI slots and two ISA slots

2U chassis backplane with four PCI slots