How To Upgrade/Replace Mid-2011 iMac 21.5" Hard Drive To an SSD! - YouTube
How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
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HOW TO] iMac 27" (mid 2011) two SSDs in RAID 0 config + HDD | MacRumors Forums
2011 IMAC SAMSUNG 1TB 850 PRO SSD UPGRADE - YouTube
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How to replace hard drive in iMac 2011 - YouTube
How can i choose to boot from the second SSD harddisk for a mid 2011 iMac? - Ask Different
Install 3 hard drives on iMac 2011 27" FAILED ... | MacRumors Forums
Reemplazo del disco duro del iMac Intel 27" EMC 2429 - Guía de reparación iFixit
Install SSD iMac 2011 - How-To DIY Guide Tutorial
Should I replace an iMac's hard drive by myself? - Quora