675039-001Hard drive blank (cover) - To fill empty large form factor (LFF) drive bays
675607-001Small form factor (SFF) hard drive blank (cover) - To fill unused hard drive bays
675608-001Large form factor (LFF) hard drive blank (cover) - To fill unused hard drive bays
790495-001Optical disk drive blank (cover) - Snap fits in the optical drive opening on the front panel
790497-001Processor blank (cover) - Screws to the top of the second processor socket and helps directs airflow to processor one socket and memory modules
790499-001Fan cover blank - To fill unused fan slots