How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
Amazon.com: Computer 2nd HDD SSD Hard Drive Caddy for Apple iMac Mid-2010 27 -Inch Core i7 2.93 MC784LL/A MC784 A1412 All-in-One Desktop, Second Solid State Drive Enclosure, CD DVD SuperDrive Optical Bay :