Timetec 32GB KIT(4x8GB) Compatible for Apple DDR3L 1600MHz PC3L-12800 CL11 for iMac (Mid 2011, Late 2012, Late 2013, Late 2014 Retina 5K, Mid 2015 Retina 5K) SODIMM Memory Module MAC RAM Upgrade at Amazon.com
How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac
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
HOW TO: Upgrade The RAM to 32GB on a Mid-2011 21.5inch iMac - YouTube
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
RAM Upgrade for iMac Mid 2011 21.5-inch | MacRumors Forums
How to Improve Multitasking with an iMac Ram Upgrade?
Timetec Hynix IC 8GB Compatible for Apple DDR3L 1600MHz PC3L-12800 SODIMM Memory Upgrade for Early/Mid/Late 2011, Mid/Late 2012, Early/Late 2013, Late 2014, Mid 2015 MacBook Pro, iMac, Mac Mini (8GB) - Newegg.com
Install memory in an iMac - Apple Support
Apple shows you how to upgrade your new iMac's RAM - 9to5Mac
Install memory in an iMac - Apple Support
How To Upgrade RAM in a Mac | Macworld
Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini RAM at Amazon.com
21.5” mid-2011 iMac wires? Finally trying to upgrade my RAM and these wires are blocking the slot — did get an iMac with poor build quality? What can I do? : r/mac
Install memory in an iMac - Apple Support
install - Installing and Upgrading Ram on a mid 2011 iMac (different size RAM) - Ask Different