iFixit Offers Kit To Install 2nd Hard Drive in Mid-2011 iMacs - MacRumors
2011 Apple iMac 27" Intel i5 2.7GHz 8GB RAM 512GB SSD AMD Radeon HD 6770M | eBay
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 SSD Upgrade Kits For 21.5-Inch iMac 2011
Cracking Open the 27" Apple iMac (2011) | TechRepublic
Shop Imac 2011 Ssd | UP TO 58% OFF
SSD Drive SATA Data HDD Cable for iMac 27" A1312 593-1330 Mid 2011 922-9875 - AliExpress