maxupgrades.com: MaxConnect System Hard Drive kit for 2.5 inch Drive for iMacs [2009-2010] Models
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
New 2TB SSD in the iMac! Upgrade kit from OWC is awesome! : r/mac
OWC SSD Upgrade Kits For iMac Early 2009
How to Install/Upgrade the PCIe SSD in a 27-inch iMac (2019) iMac19,1 - 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