![](http://pdfasset.owneriq.net/d/a3/da378b3f-34dd-4a92-b4e2-ad5ed5466a81/da378b3f-34dd-4a92-b4e2-ad5ed5466a81-bg1f.png)
Item Description Spare part number
●
500 GB, 7200 rpm 634925-001
●
500 GB, 5400 rpm 634638-001
Supports the following 7.0 mm, 6.35 cm (2.5 in) SATA hard drives:
●
320 GB, 7200 rpm 634862-001
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250 GB, 7200 rpm 634861-001
● Hard Drive Hardware Kit (not illustrated, includes bracket and screws) 640878-001
(22) Optical drive (includes optical drive bezel and bracket)
DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe* 639570-001
Blu-ray Disc ROM with LightScribe* DVD±R/RW SuperMulti Double-Layer Drive 639571-001
NOTE: *Select models only.
(23) Hard drive connector board 644525-001
(24) Battery
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6-cell Li-lon, 2.20 Ah, 47 Wh 593553-001
●
6-cell Li-lon, 2.55 Ah, 55 Wh 593554-001
Rubber Kit (not illustrated, includes bumper and rubber feet) 639572-001
(25) Plastics Kit (includes service access cover) 640889-001
ENWW Computer major components 23