2.5-inch U.2 NVMe drive to PCI-e x16 Slot card or SATA III PCI Mount – AJK-Store.com
Amazon.com: Sedna - PCI Express (PCIe) Dual 2.5 Inch SATA III (6G) SSD Adapter (Short Double Side SSD Version) (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac),
U.2 - Wikipedia
Micron P320h 2.5-inch PCIe SSD Announced - StorageReview.com
USB-C Docking Station for M.2 PCIe/NVMe and SATA 2.5/3.5-Inch SSD & HD - Sabrent
Amazon.com: Sedna PCI Express (PCIe) Dual 2.5 Inch SATA III (6G) SSD Adapter (Extended Single Side SSD Version) (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD/HDD