2U chassis backplane with four PCI slots

5-slot AT power backplane with four PCI slots and one ISA slot

5-slot backplane with three PCI slots and two ISA slots

4-slot backplane with three PCI slots and one ISA slot

1U chassis backplane with two PCI slots

7-slot backplane with four PCI slots and two PCIe x1 slots

6-slot backplane with four PCI slots and one PCIe x4 slot

5-slot backplane with two PCI slots and two PCIe x1 slots

5-slot backplane with three PCI slots and one PCIe x4 slot

5-slot backplane with four PCI slots