HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PC

Item Description Spare part number
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For use in Taiwan 599573-AB1
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For use in Thailand 599573-281
● For use in the Adriatic region 599573-BA1
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For use in the Czech Republic and Slovakia 599573-A81
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For use in the United Kingdom 599573-031
● For use in the United States 599573-001
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For use in Turkey 599573-141
(5) Palm rest (includes TouchPad)
For use in black models:
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For use with fingerprint reader and 33.8-cm (13.3-in) displays 599549-001
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For use with 33.8-cm (13.3-in) displays 599551-001
● For use with fingerprint reader and 35.6-cm (14.0-in) displays 599550-001
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For use with 35.6-cm (14.0-in) displays 599552-001
For use in red models:
● For use with fingerprint reader and 33.8-cm (13.3-in) displays 607648-001
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For use with 33.8-cm (13.3-in) displays 607650-001
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For use with fingerprint reader and 35.6-cm (14.0-in) displays 607649-001
● For use with 35.6-cm (14.0-in) displays 607651-001
For use in champagne models:
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For use with fingerprint reader and 33.8-cm (13.3-in) displays 625712-001
● For use with 33.8-cm (13.3-in) displays 625714-001
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For use with fingerprint reader and 35.6-cm (14.0-in) displays 625713-001
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For use with 35.6-cm (14.0-in) displays 625715-001
(6) Top heat shield/bracket (included with top cover)
(7) Fan 599544-001
(8) Processor heat sink
For use with discrete graphics subsystems 599653-001
For use with Unified Memory Architecture (UMA) graphics subsystems 599546-001
(9) Memory module (PC3-12800, 1333-MHz, DDR3, shared)
4096-MB 641369-002
2048-MB 652
972-002
(10) Bluetooth module cable (included in
Cable kit on page 37, part number 599525-001)
(11) Bluetooth module (without cable) 537921-001
Computer major components 27