HP A2051-00010 - Cover plate - For empty double high HP-PB I/O board slots (Includes the two captive screws) Retail
HP 02430-60015 - 16-Slot backplane - Interconnect between processor and I/O boards - 16-Slot Backplane - Interconnect Between Processor & I/O Bds Retail
HP 02430-60004 - 16-Slot backplane - Interconnect between processor & I/O boards - 16-Slot Backplane - Interconnect Between Processor & I/O Bds Retail
HP 12210-60002 - 20-slot backplane - Interconnect between processor & I/O boards - 20-Slot Backplane - Interconnect Between Processor & I/O Bds Retail
