Core I5 1.6Ghz 4Gb Ram Logic Board for MacBook Air 13 Inch 2015 820 00165|Replacement Parts & Accessories| - AliExpress
I just bought a second hand macbook air 2015 11 inches (i5 4gb ram) and I'm shocked how well it runs for basic office writing and scientific data analysis use. : r/mac
MacBook Air RAM Upgrade: What You Need to Know
Surprise! iFixit says you can't do much to fix or upgrade the 2015 MacBook | Ars Technica
Can we upgrade the memory (RAM) of the Macbook Air early 2015 model? - Quora
Refurbished Macbook Air (11-inch, 2015) – IT Star
Apple Macbook Air A1466 Core i7 | 8GB RAM | 256GB SSD - GreenIT Schools