MacBook 7,1, all specifications and details | About Apple | iGotOffer
A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
RAM Upgrades For Apple MacBook (2009 - 2010) from OWC
CMS 16GB (2X8GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® MacBook Pro Core 2 Duo 2.66 13" Mid-2010 - A15 at Amazon.com
How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac
Running the latest macOS Big Sur on my Mid 2010 white Macbook (Macbook 7,1) : r/mac