Amazon.com: OWC 2.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013- 2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini (Late 2014) : Electronics
Amazon.com: OWC 1TB Aura Pro X2 NVMe SSD Upgrade Kit Compatible with Select 27" and 21.5" iMac Models (Late 2013 - Current) : Electronics
OWC SSD Install: 21.5-inch iMac 2017 - YouTube
Upgrade your iMac with OWC, 2017 4K Retina Edition