OWC 4.0TB Aura SSD for Mac Pro: Internal Solid-State Drive Upgrade and Envoy Pro Storage Solution Model OWCSSDA13MP4.0K - Newegg.com
OWC Aura P12 review: At 4TB it offers high capacity for big money
1TB OWC Aura N NVMe SSD kit for MacBook Pro Late 2013 - Mid 2015, MacBook Air Mid 2013 - Mid 2017
Amazon.com: OWC 2.0TB Aura Pro X2 SSD Upgrade Compatible with Mac Pro (Late 2013), High Performance NVMe Flash Upgrade, Including Tools & heatsink : Electronics