HP ProBook 440 G3 14" Genuine SanDisk Z400s 128GB SATA M.2 SSD SD8SNAT-128G-1122 | eBay
Amazon.com: Replacement Hard Drive HDD SSD Caddy Frame Bracket for HP ProBook 430 435 440 445 G3 (Not fit G1 G2 G4 Model or Any Other Model) : Electronics
SATA 2.5 SSD with M.2 SSD on HP ProBook 440 G3 - HP Support Community - 5825155
HP ProBook 450 G3 Hard Drive Replacement - iFixit Repair Guide
Amazon.com: HDD SSD Hard Drive Bracket Caddy Frame for HP ProBook 430 440 445 450 455 G6 G7 : Electronics
2nd SSD HDD Hard Drive Frame Caddy for HP ProBook 430 440 450 455 470 G3 GUD1N | eBay
Wzsm New 9.5mm Sata 2nd Ssd Hdd Caddy For Hp Probook 430 440 450 455 470 G3 Gud1n Du-8a6sh Hard Disk Drive Caddy - Pc Hardware Cables & Adapters - AliExpress