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CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook 8540W Mobile Workstation - A13 at Amazon.com
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Amazon.com: HP EliteBook 8540w WH137AW 15.6" LED Notebook - Core i7 i7-620M 2.66GHz (WH137AW#ABA) : Electronics
Upgrading memory in HP EliteBook 8540w system - Online PC Support
HP EliteBook 8540w Review: Mobile Workstation Shines
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CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook 8540W Mobile Workstation - A13 at Amazon.com
Renewed HP EliteBook 8540W Mobile Workstation i7-M620 8GB RAM 500GB HDD Windows 10 15.6" 1920x1080 Webcam With 30 Days Return, 90 Days Exchange Warranty