HP 216104-001 - Cover kit - Includes hood panel (tower model only), access panel, and top panel Retail
HP 3R-A6178-AA - DVD/CD-RW HH (half height) combination optical drive (Carbon Black) - 48X speed, half-height form factor - Supported in Internal Storage Cage only - Not supported in Front Access Storage Cage Retail
HP 253449-B21 - Monitor/utility shelf kit (Graphite Black) - 1U height fixed general purpose shelf - 48.3cm (19in) wide, 74cm (29.1in) deep, 68.1Kg (150lb) capacity - Includes shelf, installation hardware, and bezels for 14-inch, 15-inch, and 17-inch Retail
HP 160274-001 - 4.5V alkaline battery for Real-Time Clock (RTC), 600mA - Has self-adhesive strip and attached cable and connector Retail
