8GB [2x4GB] DDR3-1333 RAM Memory Upgrade Kit for The Compaq HP Probook 6550b (WZ241UT#ABA) (Genuine A-Tech Brand) at Amazon.com
Amazon.com: HP Probook 6555B Off-Lease Corporate/Government Grade Windows 10 & Open Office Laptop : Electronics
Amazon.com: HP ProBook 6550b Laptop Screen 15.6 LED BOTTOM LEFT WXGA HD : Electronics
Amazon.com: New Laptop Keyboard Replacement for HP Probook 6550B 6555B 6545B 6540B P/N:574746-001 584234-071 583293-001 PK1307E1C00 V103202BS1 V103226BS1 MP-09A83US-698 US Layout Black Color : Electronics
Amazon.com: New Internal 6X 3D Blu-ray DVD Movies Disc Player Optical Drive for HP ProBook 6550b 6455b 6445b 6440b 6465b 6460b 6450b 6470b 6550b 6565b 6555b Laptop PC, Dual Layer 8X DVD+-R
Amazon.com: Puccy Privacy Screen Protector Film, Compatible with HP ProBook 6550b 15.6" Anti Spy TPU Guard ( Not Tempered Glass Protectors ) New : Electronics
Amazon.com: HP ProBook 6550b Laptop Screen 15.6 LED BOTTOM LEFT WXGA HD : Electronics
Amazon.com: Vaxson 2-Pack Protector Film, compatible with HP ProBook 6550b 15.6" Keyboard Touchpad Trackpad Skin Sticker [ Not Screen Protectors ] : Electronics