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GZEELE New Memory Cover RAM Door for HP Elitebook 8540P 8540W with Screws|Laptop Bags & Cases| - AliExpress
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16GB 2X 8GB Memory for HP EliteBook 8440w 8540w Mobile Workstation Quad Core DDR3 PC3-10600 1333MHz 204 pin SODIMM RAM (PARTS-QUICK Brand) at Amazon.com
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