Deyoung 2nd HDD SSD Hard Drive Caddy for iMac A1312 A1311 2012 2011 2010 swap SuperDrive DVD Add a 2nd drive to your laptop by replacing your optical drive; This is universal 12.7mm height SATA-to-SATA Optical bay Caddy Adapter Tray; This device accepts 2.5" inch 12.5mm / 9.5mm / 7mm high or less SATA HDD / SSD; Compatible with:iMac A1312 A1311 2012 2011 2010 Notice: Buyers need to remove their optical drive cable to re-use onto the caddy for proper working!!!