How to Install a 2.5-inch SSD in the SSD Drive Bay of a 27-inch iMac Mid 2011 (Updated) - YouTube
Amazon.com: OWC Data Doubler Kit for 2009-2011 iMac, 1.0TB 3G SSD with Mounting Solution and Toolkit : Electronics
maxupgrades.com: Single SSD Drives kit for iMac 27 inch 2012 Models with SATA Blade SSD Module / Heatsink/ Power Cable and DATA Cables for [SSD + HDD] with iMac Adhesive LCD Tape
How can i choose to boot from the second SSD harddisk for a mid 2011 iMac? - Ask Different
OWC Hard Drive Upgrade Kit for Apple iMac 2011
2011 imac 27" 32GB - final stage of 1TB + 2TB SSD upgrade (replaced HDD & optic drive). Also cleaned out the fans and case. Running 'SSD Fan Control' & 'Macs Fan