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
Install 3 hard drives on iMac 2011 27" FAILED ... | MacRumors Forums
OWC SSD Upgrade Kits for 27-Inch iMac 2011
HOW TO] iMac 27" (mid 2011) two SSDs in RAID 0 config + HDD | MacRumors Forums