SOLVED: SSD upgrade for early 2015 retina MacBook? - Retina MacBook 2015 - iFixit
WHY 12 inch MACBOOK IS THE WORST APPLE PRODUCT
Surprise! iFixit says you can't do much to fix or upgrade the 2015 MacBook | Ars Technica
Amazon.com: 1.1GHz 8GB RAM 256GB SSD Logic Board for MacBook Retina 12" A1534 Early 2015: Computers & Accessories
Retina MacBook 2016 Teardown - iFixit
A1534 Motherboard SSD 256GB for MacBook 12" 1534 Logic board 1.1Ghz 8GB Solid state disk 256G Early 2016 820 00244 A 820 00045 A|Add On Cards| - AliExpress