![](/images/new-backgrounds/1319200/31920061x1.webp)
Item | Description | Spare part number |
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| ● Realtek RTL8191SE 802.11b/g/n 1x1 WiFi Adapter | |
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| ● Realtek 8188BC8 802.11a/b/g/n 2x2 WiFi and Bluetooth 3.0+HS Combo Adapter | |
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| ● Atheros AR9285 802.11b/g/n WiFi + Bluetooth Adapter | |
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(19) | Memory modules (1066 MHz, DDR3) |
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| ● 4 GB PC3 10600 1333 MHz shared | |
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| ● 2 GB PC3 10600 1333 MHz shared | |
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| ● 2 GB PC3 10600 1333 MHz shared | |
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| ● 1 GB PC3 10600 1333 MHz shared | |
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| ● 1 GB PC3 10600 1333 MHz shared | |
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(20) | Hard drive connector board | |
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(21) | Hard drive |
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| Supports the following 9.5 mm, 6.35 cm (2.5 in) SATA hard drives: |
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| ● 750 GB, 5400 rpm | |
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| ● 640 GB, 5400 rpm | |
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| ● 500 GB, 7200 rpm | |
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| ● 320 GB, 5400 rpm | |
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| Supports the following 7.0 mm, 6.35 cm (2.5 in) SATA hard drives: |
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| ● 320 GB, 7200 rpm | |
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| ● 250 GB, 7200 rpm | |
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| ● Hard Drive Hardware Kit (not illustrated, includes bracket and screws) | |
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(22) | Optical drive (includes optical drive bezel and bracket) |
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| DVD±RW and | |
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| Weight Saver optical drive | |
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| NOTE: *Select models only. |
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(23) | Battery |
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| ● | |
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| ● | |
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| Rubber Kit (not illustrated, includes rubber feet) | |
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(24) | Plastics Kit (includes service access cover) | |
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ENWW | Computer major components 23 |