HP 321 - Notebook PC Maintenance And Service Manual page 38

Item Description
(24) Optical drive (includes bezel)
DVD-ROM Drive
DVD±RW Double-Layer Drive with LightScribe
(25) Access door
For use in 33.8-cm (13.3-in) and 35.6-cm (14.0-in) computers
For use in 39.6-cm (15.6-in) computers
28 Chapter 3 Illustrated parts catalog
608140-001
608141-001
605784-001
605785-001