512GB SSD Drive for Apple iMac 21.5" A1418 27" A1419 (Late 2013) 2014 2015 2017 762578513039 | eBay
iMac 2013 (and later) with NVME SSD? | MacRumors Forums
Where is my iMac A1419 SSD? - Ask Different
How to Install/Upgrade the PCIe SSD in a 27-inch iMac (Late 2013) iMac14,2 - YouTube
OWC Aura SSD Install: 21.5-inch iMac Late 2012 – Early 2013 - YouTube
iMac Late 2013 21.5 SSD Upgrade - YouTube
Apple iMac 21.5” SSD Upgrade (2013-2015) HDD To Solid State Drive (SATA) | Step By Step - YouTube
LEVEN 2TB Mac Upgrade NVMe SSD PCIe Gen3x4 Compatible with Apple MacBook Air (2013-2017) & Pro (2013-2015), Mac Mini (2013) & Pro (2014), iMac (2013 -2019)
Hard Lesson Learned With Late-2013 Apple Products Containing Lesser Performing 128GB SSDs | The SSD Review
SOLVED: Can I create a fusion on late 2013 iMac 27? - iMac Intel 27" EMC 2639 - iFixit
OWC SSD Upgrade Kits for 21.5-Inch iMac (2013 - 2019)