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
How To Upgrade/Replace Mid-2011 iMac 21.5" Hard Drive To an SSD! - YouTube
Upgrading Apple iMac 2011 27 Hard Drive to SSD, Huge Improvement - YouTube
SSD Installation Kit for 2011 iMac 27-Inch Models
Amazon.com: OWC 6.0TB HDD Upgrade Kit Compatible With 2009-2010 iMacs, Includes: Thermal Sensor, Tools, 6.0TB Hard Drive : Electronics