OWC SATA Main Bay Hard Drive Power Cable for... at MacSales.com
Install 3 hard drives on iMac 2011 27" FAILED ... | MacRumors Forums
Install SSD iMac 2011 - How-To DIY Guide Tutorial
Apple iMac 21.5", Mid 2011, 2.7GHz Intel Core i5, 4GB, High Sierra 1TB SATA HD | eBay
Using a SATA Y Power Split cable instead of OWC's thermal sensor to replace a HDD/SSD on a 2011 iMac - YouTube
Amazon.com: OWC SSD Upgrade Kit for 2011 21.5-inch iMacs, Mercury Electra 250GB 6G SSD, 18" SATA III 6Gbps Data Cable, Installation Tools and iMac Screen Adhesive Tape Set : Electronics
Apple iMac A1312 27" 21.5" Mid 2011 SATA Super Drive DVD Rewriter 678-0603D OEM | eBay
OWC SATA Main Bay Hard Drive Power Cable for 27-inch iMac (Mid 2011)
Further Explained: Apple's iMac 2011 Model Hard Drive 'Restrictions'
How To Upgrade/Replace Mid-2011 iMac 21.5" Hard Drive To an SSD! - YouTube
FYI iMac 27 inch has 3 SATA connectors for additional drives - YouTube
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com