DY-tech 2nd SSD HDD Caddy for Dell Inspiron 15 17 5000 7000 5748 5749 14Z 15Z 5523 5423 Add the 2nd drive to your laptop by replacing your optical drive; Notice: Universal 9.5mm height SATA-to-SATA Optical bay Caddy Adapter Tray; Need to remove buyer's optical drive faceplate and mounting bracket / ejector latch to re-use onto the caddy for proper working! This device accepts 2.5" inch 9.5mm / 7mm high or less SATA HDD / SSD; Compatible with: for Dell Inspiron 15 17 5000 7000 5748 5749 14Z 15Z 5523 5423 Notice: Buyers need to remove their optical drive Front Panel(bezel) and Mounting Bracket to re-use onto the caddy for perfect match!!!