How to: Install an Intel iMac Dual Hard Drive Kit 21.5" (Mid 2011) - YouTube
iMac Hard Drive Disk Replacement 2009 2010 2011 21 5" Apple Dollars #9 - YouTube
iMac Hard Disk Removal | iMac SSD Upgrade | Thermal Sensor Link Posted under Description - YouTube
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
hard drive - iMac 27" Mid 2011 -- fan issues when removing internal HDD? - Ask Different