Deyoung 2nd HD SSD Hard Drive Caddy for Apple SuperDrive 27" iMac Late 2009 2010 2011 2012 2013 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:Apple SuperDrive 27" iMac Late 2009 2010 2011 2012 2013 Notice: Buyers need to remove their optical drive cable to re-use onto the caddy for proper working!!!