OWC Aura Pro X2 - Solid state drive - 1 TB - internal - PCI Express 3.1 x4 (NVMe) - with OWC Envoy Pro storage enclosure - Walmart.com
OWC 4TB Aura Internal PCIe SSD Upgrade and Storage
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
OWC 4TB Envoy Pro EX USB 3.1 Gen 2 Type-C External