HP ProBook 4530s RAM Replacement - iFixit Repair Guide
HP ProBook 4530S Battery Hard Drive SSD RAM Upgrade Replacement Repair - YouTube
New Laptop Internal Dvd Optical Drive For Hp Probook 4530s 4540s 4520s 4430s Dual Layer 8x Dvd Rw Ram 24x Cd Burner Replacement - Optical Drives - AliExpress