HP ProBook 4540s core i5 3rd gen 8GB Ram 500GB Hard Drive Windows 10 Pro 15.6”Laptop with charger in Excellent Working condition!!! Specification: *I for Sale in Aurora, IL - OfferUp
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HP ProBook 4540S-C4Z18EA - Notebookcheck.net External Reviews
Memory RAM Upgrade for HP ProBook 4540s 4GB/8GB DDR3 SODIMM | eBay
HP ProBook 4540S Intel Core I3-3110m 15.6" 2gb RAM Laptop No HDD for sale online | eBay