Macbook Pro (Late 2011) Memory Upgrade - Apple Community
A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module
Apple MacBook Pro 13" Late 2011 512GB SSD, Intel Core i5 CPU, 10GB RAM - 1519 | eBay
MacBook Pro "Core i7" 2.8 13" Late 2011 Specs (Late 2011 13", MD314LL/A, MacBookPro8,1, A1278, 2555*): EveryMac.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
Apple MacBook Pro 13 | MacOS Monterey 2021 | 16GB MAX RAM | 1TB SSD | WARRANTY | eBay
Amazon.com: Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac(Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) MAC RAM Upgrade :