How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
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
APPLE 1 tb 1000 gb SSD Mac iMac A1419 27 hard disk hd hdd fusion drive | eBay
Hard drives versus SSD storage in Macs, compared | AppleInsider
APPLE 1 tb 1000 gb SSD Mac iMac A1419 27 hard disk hd hdd fusion drive | eBay