Upgrading Apple iMac 2011 27 Hard Drive to SSD, Huge Improvement - YouTube
iMac mid 2011 upgrade to SSD | MacRumors Forums
4TB OWC Mercury Extreme 6G SSD and Data Doubler for select 2010 - 2011 iMacs | eBay
OWC SSD Upgrade Kits for 27-Inch 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