Nimitz 2nd HDD SSD Hard Drive Caddy for Hp Zbook 15 Zbook 17 with Bezel Add a 2nd drive to your laptop by replacing your optical drive Comes with matched Faceplate/Bezel Works in optical drive bay of HP ZBOOK 15,17 Works with 2.5" SATA drives with heights equal to or less than 9.5mm (also compatible with 9.5mm SSD) Caddy installed in laptop as picture 5