OWC Internal SSD DIY Kit for Apple iMac 27" OWCDIDIM27SSD11 B&H
How can i choose to boot from the second SSD harddisk for a mid 2011 iMac? - Ask Different
iMac 21.5″ and 27″ Dual Hard Drive Kits! | iFixit News
Picked up this iMac (27", mid 2011) i7 @ 3.4GHz , 16 gb ram , 256 SSD in excellent condition for $210. Should I make any upgrades ? GPU, bigger SSD? Thanks : r/LukeMianiYouTube
Lab Report: Core i7 SSD iMac is the fastest Mac we've tested