How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
1 TB 1000 GB HDD Hard Disk 3.5 inch S-ATA iMac 2011 7200.12 Original Apple - used original spareparts for Macs
Install 3 hard drives on iMac 2011 27" FAILED ... | MacRumors Forums
How to replace an iMac 2011 HDD to an SSD - YouTube
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