Amazon.com: INDMEM NVMe PCIe SSD 256GB 3D TLC NAND Flash Hard Drive Replacement for Mid 2013-2017 MacBook Air, Late 2013 - Mid 2015 MacBook Pro Retina, Late 2013-2017 iMac, 2013 Mac Pro, 2014 Mac Mini : Electronics
Can I upgrade iMac (Late 2015) fusion drive to SSD? | MacRumors Forums
iMac 2013 (and later) with NVME SSD? | MacRumors Forums