777279-001SAS/SATA backplane board - Mounts on the rear of the 8-bay small form factor (SFF) hard drive cage - Performance is up to 12Gbs transfer speed
780967-001System I/O board (motherboard) - Includes the system I/O board, sub pan tray, thermal grease, alcohol pad, and instructions
780968-0012-slot power supply backplane board (standard) - Mounts in the chassis at the back of the power supply cages
780969-0014-slot power supply backplane board - Mounts in the chassis at the back of the power supply cages - Part of the redundant power supply enablement kit (replaces the 2-slot power supply backplane board)