HP ProBook 450 440 445 470 G2 G1 Hard Drive Caddy HDD Bracket Holder | eBay
9.0mm 2nd SATA Hard Drive HDD SSD Optical Bay Caddy Bracket for HP ProBook 655 650 645 640 G1 G2 G3 G4 G5 445 450 470 G0 G1 G2 - AliExpress
HP probook 450 G2 support which Mini-card SSD - HP Support Community - 6006823
HP Probook 470 G2 How to disassemble to remove the hard drive and replace the keyboard - YouTube
Amazon.com: Replacement Hard Drive HDD SSD Caddy Frame Bracket for HP ProBook 450 470 475 455 G3 (Not fit G1 G3 G4 Model or Any Other Model) : Electronics