DIY: Laptop memory upgrade HP ProBook 4530s - YouTube
OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4530s (DDR3-10600) Laptop Memory at Amazon.com
Seifelden 8GB (2X4GB) Memory RAM for HP ProBook 4530s Laptop Memory Upgrade - Walmart.com
How to Upgrade RAM Memory HP ProBook 4530s - YouTube
HP ProBook 4530s core i3 2nd gen 8GB Ram 250GB HDD Windows 10 Pro 15.6” Screen Laptop with charger in Excellent Working condition!!! Specification: * for Sale in Aurora, IL - OfferUp