PCIe Gen4 U.2 to M.2 Adapter w/ Microcontroller - Serial Cables
JEYI PCI-E X8 Dual Disk U.2 Riser Card 2-U2X8 SSD PCIE 4.0 X8 X16 Adapter Card for Windows 10/8/Linux - Newegg.com
OWC MISADPU2PCIE2 2.5-inch U.2 SSD to PCIe Adapter at MacSales.com
StarTech.com M.2. PCI-e NVMe to U.2 (SFF-8639) Adapter - Not Compatible with SATA Drives or SAS Controllers - For M.2 PCIe NVMe SSDs - PCIe M.2 Drive to U.2 Host Adapter -
DiLiVing PCIe NVMe SSD Adapter with U.2 (SFF-8639) Interface for 2.5" NVMe SSD(PEX4SFF8639)
MZHOU U.2 PCI-E ExpansionCard, SFF-8639 to SSD Adapter Card, PCI-E 3.0 X4 SATA Adapter- High Power Self-Powered The NVME Standard Protocol Supports WIN7/8/10/32/MAC/Linux