Deyoung 2nd Hard Drive HDD SSD Caddy For Dell Alienware M14x R1 R2 R3 Replace UJ8A7 DVD Add a 2nd drive to your laptop by replacing your optical drive This is universal 9.5mm height SATA-to-SATA Optical bay Caddy Adapter Tray; This device accepts 2.5" inch 9.5mm / 7mm high or less SATA HDD / SSD. Compatible with:Dell Alienware M14x R1 R2 R3 Replace UJ8A7 DVD Notice: Buyers need to remove their optical drive faceplate(bezel) and Bracket to re-use onto the caddy for proper working!!!