Samsung 980 PRO MZ-V8P500B - solid state drive - 500 GB - PCI Express 4.0 x4 (NVMe) | Dell USA
Amazon.com: Sedna PCI Express (PCIe) SATA III (6G) SSD Adapter with 1 SATA III Port (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD not Included :
What is PCIe SSD?
Dual M.2 PCIe NVMe X4 Adapter with PCIe Bifurcation Function, Support M.2 PCIe 3.0 SSD Soft RAID Setup in Windows/Mac/Linux