MacBook Pro 13" Retina (Mid 2014) 2.6 GHz Logic Board
OWC 8GB (2 x 4GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S08S) at Amazon.com
How to upgrade Apple MacBook Pro RAM - YouTube
Apple Macbook Pro 13 (2015) Laptop | i5 + 8GB RAM + 128GB SSD | MacOS Monterey | eBay
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Apple Macbook Pro 13 (2015) Laptop | i5 + 8GB RAM + 128GB SSD | MacOS Monterey | eBay