OWC DIY Kit for 2009 - 2011 27" iMac optical bay:... at MacSales.com
How to Install a 2.5-inch SSD in the SSD Drive Bay of a 27-inch iMac Mid 2011 (Updated) - YouTube
Potenziamenti per iMac 27'' Metà 2011 - BuyDifferent - Gli esperti del mondo Apple
How to Upgrade/Replace the Main Drive in a 27-inch Apple iMac 2011 (iMac12,2) - 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
Juicy Crumb - 2011 27" iMac Upgrade Logic Board by Juicy Crumb Systems — Kickstarter