HP A3231-69006 - Fan pack assembly - Three fans on a mounting frame/door - Mounts to the rear panel of the 10-slot disk array Retail
HP J3100-69001 - AdvanceStack Switch 2000 assembly (chassis only) - Has six empty expansion module slots on the front, and a rear access panel for mounting a redundant power supply Retail
HP 5064-0701 - Fan assembly - With housing - Mounts to the rear panel in the upper slot (above the power supply assembly) Retail