Cannot find PCIe NVMe SSD during Windows 11 installation

It's hard to find PCIe NVMe drives that can cap the write speed of Thunderbolt NVMe enclosure Or maybe all my PCIe NVMe drives are old

Gen3, Windows boot time, games launch time, File copy NVMe Gen 3 vs NVMe Gen 4

genius of leonardo slot 2 NVMe SSDs occupy a single x4 slot]; PCIe x8: expansion cards with 2 PCIe Gen 4, and even Gen 3 NVMe SSD speeds are nothing to scoff at either

genie slot game 5+3 Phases Pure Digital VRM Solution with Low RDS MOSFETs 9 Supports 3rd Gen AMD Ryzen™ Processors 10 Dual Channel DDR4, 4 DIMMs 11 Dual