How can i choose to boot from the second SSD harddisk for a mid 2011 iMac? - Ask Different
Hard disk replacement for a mid-2011 iMac - Life, the Universe and Fishing
iMac Intel 21.5" (Mid 2011) Dual Hard Drive Kit
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
Apple MC309LL/A 21.5 inch iMac Core i5 2.5 GHz 4GB RAM 500GB HDD Mid-2011 | Recycledgoods.com
SSD Installation Kit for 2011 iMac 27-Inch Models
How To Upgrade/Replace Mid-2011 iMac 21.5" Hard Drive To an SSD! - YouTube
Apple Restricts Hard Drive Replacements on New iMacs - MacRumors
Install SSD iMac 2011 - How-To DIY Guide Tutorial
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
Best Buy: Apple® iMac® 21.5" 8GB Memory 1TB Hard Drive A1311
iFixit launches Dual Hard Drive Kit and guides for Mid 2011 iMacs - 9to5Mac
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