M1 Mac RAM and storage can be upgraded after purchase, but it's not easy - 9to5Mac
How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac
Got my A1181 09' MacBook 5,2 running a 500GB SSD, 4GB Ram, and pushed it from the max OS of El Capitan to Mojave with a patched install USB I put together (:
MacBook Unibody Model A1342 RAM Replacement - iFixit Repair Guide
MacBook Pro Memory Upgrade Kits (2008, 2009 and 2010)
MacBook Pro 13" Unibody Mid 2012 RAM Replacement - iFixit Repair Guide
8GB of RAM and 5,2 MacBooks (Early or Mid 2009) | MacRumors Forums
M1 Mac RAM and SSD Upgrades Found to Be Possible After Purchase - MacRumors
Ram upgrade Macbook 5,2 early 2009 detect… - Apple Community
Apple Macbook Pro 15" Touch Bar Laptop Core i9 2.9GHZ / 32GB Ram / 2TB SSD / Radeon 560X / Space Gray / Magic-Mouse (Grade A) - Walmart.com
How To: Apple Mac Pro RAM Upgrade! (Late 2013) - YouTube
64GB RAM Option is Only Available on MacBook Pro with M1 Max Chip
16GB -2x8GB Memory Ram Upgrade Apple MacBook-7.1 Core2Duo 2.4GHz Mid 2010 A1342 | eBay
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2GB DDR2-667 (PC2-5300) RAM Memory Upgrade for The Apple iMac 5,1 (17-inch, 2.0GHz, MA590LL/A) Intel Core 2 Duo (Genuine A-Tech Brand) at Amazon.com
Restored Apple MacBook Pro Laptop, 13" Retina Display with Touch Bar, Intel Core i5, 16GB RAM, 512GB SSD, Mac OSx Catalina, Space Gray, MLH12LL/A (Refurbished) - Walmart.com
Amazon.com: OWC 4GB PC6400 DDR2 800MHz SO-DIMM Memory Compatible with iMac 2008, MacBook 2009 (OWC6400DDR2S4GB) : Everything Else
Amazon.com: OWC 6GB (2GB + 4GB) PC6400 DDR2 800MHz SO-DIMMs Memory Compatible with iMac 2008, MacBook 2009 (OWC6400DDR2S6GP) : Everything Else
Apple MacBook Pro 13" Display with Touch Bar Intel Core i5 8GB Memory 256GB SSD Space Gray MUHP2LL/A - Best Buy
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MacBook Air 13.6" Laptop Apple M2 chip 8GB Memory 256GB SSD Starlight MLY13LL/A - Best Buy
Ultimate Guide on How to Upgrade Mid 2012 MacBook Pro: Faster and Better Than New! | College Lighthouse
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Apple MacBook Pro 2008 Edition review: Apple MacBook Pro 2008 Edition - CNET
Ram upgrade Macbook 5,2 early 2009 detect… - Apple Community
