HP A6144-69102 - PCI I/O backplane board - Has 12 PCI slots - L3000 PCI I/O backplane board - Has 12 PCI slots - Mounts vertically in the chassis Retail
HP D7054-63015 - PCI board hold down latch - PCI board hold down latch - Mounts to I/O tray PCI slots Retail
HP 374747-001 - Plastics kit - Contains thermal fans cover, memory expansion-mini PCI compartments cover, and optical drive bay covers Retail