U.2 to PCIe Adapter for 2.5″ U.2 NVMe SSD – SFF-8639 – x4 PCI Express 3.0 – BCI Imaging Supplies
Amazon.com: 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 : Electronics
Amazon.com: DiLiVing PCIe NVMe SSD Adapter with U.2 (SFF-8639) Interface for 2.5" NVMe SSD(PEX4SFF8639) : Electronics
Amazon.com: cablecc U.2 U2 SFF-8639 NVME PCIe 4.0 SSD Male to Female Adapter Extension 68pin PCI Express PCBA : Electronics
M.2 vs U.2 - Velocity Micro Blog
What is U.2 SSD (formerly SFF-8639)? | Definition from TechTarget