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GT540M GT 540M 2G N12P-GS-A1 MXM VGA Video Graphics Card for HP Envy 23 Omni 220/27 Touchsmart 420/520
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660498-001 GeForce GT540M GT 540M MXM3.0a 2GB Video Card for HP Envy 23 / Omni 220 / Omni 27 / Touchsmart 420 / Touchsmart 520 - AliExpress
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