Amazon.com: Sedna PCI Express (PCIe) SATA III (6G) SSD Adapter with 1 SATA III Port (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD not Included :
Dual NVMe PCIe Adapter, RIITOP M.2 NVMe SSD to PCI-e 3.1 x8/x16 Card S
Squid PCI Express Gen 3 Carrier Board With 6 PCIe SSD - TransIntl
M.2 NVME SSD to PCIe 4.0 Adapter Card, 64Gbps SSD PCIe4.0 X4 Adapter for Desktop PC , PCI-E GEN4 Full Speed - Walmart.com
Ngff M2 Ssd Pci E 4x Slot Adapter Card Key | Nvme Pcie M.2 2280 Ssd Sata Adapter - Pc Hardware Cables & Adapters - Aliexpress