| Description | Spare part number |
| | |
(1) | Hard drives | |
| | |
| 750-GB, 7200-rpm | 633252-001 |
| | |
| 750-GB, 5400-rpm | 634250-001 |
| | |
| 640-GB, 5400-rpm | 669300-001 |
| | |
| 500-GB, 7200-rpm | 634925-001 |
| | |
| 500-GB, 7200-rpm hard drive (locked; model 4440s/4441s only) | 718475-001 |
| | |
| 500-GB, 5400-rpm (4540s models only) | 683802-001 |
| | |
| 500-GB, 5400-rpm (4440s/4441s models only) | 669299-001 |
| | |
| 320-GB, 7200-rpm | 641672-001 |
| | |
| 320-GB, 5400-rpm (4540s models only) | 645193-001 |
| | |
| 320-GB, 5400-rpm (4440s/4441s models only) | 622643-001 |
| | |
| 128-GB solid-state drive | 684253-001 |
| | |
| Hard Drive Hardware Kit (includes hard drive bracket and screws; not illustrated) | 683488-001 |
| | |
(2) | Optical drives | |
| | |
| For use in 4540s models: | |
| | |
| DVD-ROM drive | 700845-001 |
| | |
| ● DVD±RW and CD-RW Super Multi Double-Layer Combo Drive | 683500-001 |
| | |
| ● Blu-ray ROM DVD±RW SuperMulti DL Drive | 683499-001 |
| | |
| For use in 4440s/4441s models: | |
| | |
| ● DVD±RW and CD-RW Super Multi Double-Layer Combo Drive | 691111-001 |
| | |
| ● Blu-ray ROM DVD±RW SuperMulti DL Drive | 691110-001 |
| | |
