Used for Macbook 2011 before my laptop died. 16GB (2X8GB) DDR3 SODIMM Memory, 1333MHz New priced between $115 and $160. https://www.amazon.ca/Corsair-204-Pin-Sodimm-Laptop-CMSO16GX3M2A1333C9/dp/B006DI9PG8 https://www.corsair.com/ca/en/Categories/Products/Memory/Mainstream-Memory/Corsair-Memory-%E2%80%94-16GB-%282-x-8GB%29-DDR3-SODIMM-Memory/p/CMSO16GX3M2A1333C9