Internal SSD DIY Kit for Apple 21.5-Inch iMac 2011
SSD Installation Kit for 2011 iMac 27-Inch Models
Amazon.com: OWC SSD Upgrade Kit for 2011 21.5-inch iMacs, Mercury Electra 250GB 6G SSD, 18" SATA III 6Gbps Data Cable, Installation Tools and iMac Screen Adhesive Tape Set : Electronics