HP A6752-69014 - PCI backplane (card cage assembly) - Includes the metal PCI backplane cage and the 16 slot PCI backplane Retail
HP A6093-69015 - PCI backplane (card cage assembly) - Includes the metal PCI backplane cage and the 16 slot PCI backplane Retail
HP AB297-67001 - Printed Circuit Assembly (PCA) - Backplane, card cage assembly, PCI Express (PCIe-X) 2.0, Kona Retail