HP ProBook 6550b 15.6" Widescreen Laptop - with Intel i5-520M 2.4GHz, 4GB RAM, 128GB SSD Hard Drive - Windows 7 Professional 64 - Used with FREE 3 Year Warranty provided by CPS. - Walmart.com
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HP ProBook 6550b INTEL Core i5 540M 2.53GHZ 8GB RAM NO HD NO CADDIE | eBay
HP ProBook 6550b 15.6" Widescreen Laptop - with Intel i5-520M 2.4GHz, 4GB RAM, 128GB SSD Hard Drive - Windows 7 Professional 64 - Used with FREE 3 Year Warranty provided by CPS. - Walmart.com
Memory Board Cover 6070B0438301, HP ProBook 6550b Memory Board Cover. PcHub.com - Laptop parts , Laptop spares , Server parts & Automation