What is the U.2 interface on SSDs and why has it not succeeded?
What Is U.2 SSD? How about U.2 SSD vs. M.2 SSD? An Easy Guide
The Ironic – And Fleeting – Volatility In NVM Storage
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
Micron 9100 and 7100 PCI-E NVMe SSDs now sampling
Solid State Drive Form Factors | SNIA
The U.2 NoLoad™: Computational Storage without the Storage? - Eideticom