A Mid 2009 MacBook. Running macOS Catalina using dosdude1's Catalina patcher, 4GB of DDR2 RAM and and 120GB SSD. Got it for € 10,-. It's a gift for my son, so he
13-inch MacBook Late 2009 & 2010 Memory Installation Video - YouTube
4GB RAM Memory for Apple MacBook Pro 3.06GHz Intel Core 2 Duo (15-inch DDR3) Mid-2009 Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade - Walmart.com
Late 2009 MacBook ram compatibility | MacRumors Forums
Apple MacBook Air A1304 13″ Mid 2009 Ram Replacement – iFixGeek iPhone , Mac and PC Service Dallas Plano Richardson Texas
OWC 6GB (2GB + 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory Compatible with Late 2008, Early 2009, Early 2010 MacBook, MacBook Pro Unibody Models, 2009/2010 Mac Mini, 2009 iMac Models at Amazon.com
Apple Macbook 13" A1342 2009 White Unibody Core 2 Duo 2.26GHz 8GB RAM 500GB HDD | eBay
13-inch MacBook Pro Mid 2009 Memory Installation Video - YouTube
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4GB Memory for MacBook, MacBook Pro, iMac and Mac mini
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How to Upgrade RAM in a 2009 / 2010 MacBook Pro - Memory Replacement - MacBook Tutorial - YouTube
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