HP 5064-3538 - Dual fan assembly - Includes two fans mounted on a slide-in bracket - Installed in slot near the power supply Retail
HP 5064-3523 - EISA/PCI slot card guide - Mounts to the chassis assembly (Over the front panel fans) 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 5064-1984 - Lower auxiliary fan assembly - Mounts on the back panel next to the rear hard drives Retail