SSD Upgrade Kit for iMac 2013-2019 from OWC | eBay
maxupgrades.com: Dual SSD Drives kit for iMac 27 inch 2012 Models with Blade SSD Module with Heatsink and Power and DATA Cables
Amazon.com: OWC Data Doubler Kit for 2009-2011 iMac, 1.0TB 3G SSD with Mounting Solution and Toolkit : Electronics
1TB SSD Kit for Mac Pro - Apple
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
OWC / Other World Computing Internal SSD DIY Kit with Tools for 21.5" Apple iMac 2011 Models - Walmart.com
OWC DIY Internal SSD Add-On Kit for all 27" Apple iMac (Mid 2011) - Just add your own SSD!