If you need to deploy U.2 drives, these are 1/2 usual price. 3 left at time of post. Confirmed they are N.I.B.
Funtin PCIe NVMe SSD Adapter with U.2 (SFF-8639) Interface for 2.5" NVMe SSD | eBay
When use the old OS that you must install the driver that provide from the SSD vendor. Support PCIE Gen3, PCIE Gen2, PCIE Gen1, suggest to use PCIE Gen3 slot for high performance. SUITABILITY FOR YOUR PURPOSE IS NOT COVERED BY US.
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