iMac Late 2013 27" Memory Upgrade guide (iMac14,2) Rod Bland September 18, 2019 02:35 Updated Follow Use this guide to upgrade the RAM in your Late-2013 27" iMac to a maximum of 32GB (8GB x4). Tools Spudger Anti-static wrist strap Medium Anti-static mat Parts 4GB RAM Module 8GB RAM Module Related articles iMac Late-2013 21.5" RAM Upgrade Guide (iMac14,1 / iMac14,3) iMac Late 2012-2017 27" HDD Replacement guide (iMac13,2 / iMac14,2 / iMac15,1 / iMac17,1 / iMac18,3)