How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac
Timetec 4GB Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 Dual Rank for Mac Book,
MacBook Pro Upgrade Guide
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
MacBook Air 16GB RAM Upgrade - YouTube
16GB Memory Upgrade Kit 2009 Apple Apple iMac
Timetec Hynix IC 16GB KIT(2x8GB) Compatible for Apple DDR3 PC3-8500 1067MHz/1066MHz Upgrade for MacBook 13'' Mid 2010, MacBook Pro 13'' Mid 2010, iMac 27''Late 2009, Mac Mini Mid 2010(16GB KIT(2x8GB)) - Newegg.com
NEMIX RAM 64GB 4X16GB Mac Pro 2009 2010 2012 Compatible Memory DDR3-1333 Upgrade Kit at Amazon.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
A-Tech 16GB Kit (2x8GB) DDR3 1066MHz / 1067MHz PC3-8500 SODIMM RAM for Apple MacBook (13 inch, Mid 2010), MacBook Pro (13 inch, Mid 2010), iMac (27 inch, Late 2009), Mac Mini (Mid 2010) at Amazon.com
16GB 2X 8GB SODIMM For Apple iMac Late 2009 PC3-8500 A1311 MB950LL/A Memory Ram | eBay
16GB RAM UPGRADE for MacBook Pro! [Working] - YouTube
16GB RAM in a 2009 & 2010 iMac | MacRumors Forums
iMac Memory for Models 10.1 and 11.1 | 16GB (4GBx4) | MacMemory.com
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Apple Mac Pro (Early 2009, 8-Core) Memory RAM | 16GB Kit (2x8GB) 2Rx4 — A-Tech Memory
RAM Upgrades For Apple MacBook (2009 - 2010) from OWC
8GB -2x4GB Memory Ram Upgrade Apple MacBook-6.1 Core2Duo 2.26GHz Late 2009 A1342 | eBay
How to upgrade the RAM on your 13-inch MacBook Pro
Macbook Pro Apple 13" inch Catalina 10.15 (2012-2014 model) w/ 16GB RAM Upgrade! | eBay