Install memory in an iMac - Apple Support
Apple iMac 16GB RAM Upgrade: Demo - YouTube
16GB Transcend DDR3 Apple RAM 1333MHz ECC Reg Quad Kit 4x4GB Mac Pro Early 2009 | eBay
iMac "Core i7" 2.8 27" (Late 2009) Specs (Late 2009, MC507LL/A, iMac11,1, A1312, 2374): EveryMac.com
Early 2009 model iMac Computer, DDR3 8GB (2x4GB) RAM Replacement - YouTube
Amazon.com: OWC 16GB (2 x 8GB) PC8500 DDR3 ECC-R 1066MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve. (OWC85MP3S8M16GK) : Everything Else
Apple A1419 iMac 27" 3.2GHz Core i5 16GB RAM 1TB HDD Grade B
How to Upgrade Mac Pro Memory (Early 2009/MacPro4,1): EveryMac.com
iMac Intel 27" EMC 2309 and 2374 RAM Replacement - iFixit Repair Guide
Install memory in an iMac - Apple Support
How to Upgrade Memory in a Late 2009 21.5-inch or 27-inch iMac - YouTube
Early 2009 iMac - Will it support 16GB? | MacRumors Forums
A-Tech for Apple 16GB Kit (4X 4GB) DDR3 1067MHz / 1066MHz PC3 8500 Mac Pro (Early 2009 Mid 2010 Mid 2012) MacPro4,1 Memory RAM
Apple Desktops – Computechsale
iMac A1311 Mid 2011 Intel i5-2400S @ 2.5 GHz 16GB RAM 512 GB HDD MacOS Catalina | eBay
Corsair Apple Certified 16 GB (2x8 GB) DDR3 1600MHz (PC3 12800) Laptop Memory 1.35V
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
iMac Intel 27" EMC 2309 and 2374 RAM Replacement - iFixit Repair Guide
16GB RAM in a 2009 & 2010 iMac | MacRumors Forums
A-Tech for Apple 16GB Kit (4X 4GB) DDR3 1067MHz / 1066MHz PC3 8500 Mac Pro (Early 2009 Mid 2010 Mid 2012) MacPro4,1 Memory RAM
64GB Memory Upgrade Kit for 2009-2010 Mac Pro Tower
Amazon.com: OWC 16GB (4 x 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory Compatible with iMac 21.5" and 27" (October/2009) : Everything Else
