GLOTRENDS M.2 PCIe NVMe 4.0/3.0 Adapter with 0.4 Inch Thick M.2 Heatsink for M.2 PCIe SSD (NVMe and AHCI), PCI-E GEN4 Full Speed, Desktop PC Installation (PA09-HS10) - Newegg.com
NVMe vs. SATA: It's Time for NAND Flash in the Fast Lane
Amazon.com: M.2 NGFF NVMe SSD to PCIE 3.0 X16/X8/X4 Adapter with heatsink for 1U/2U Server and Low Profile PC : Electronics
Will a NVMe Gen 4 PCIe x4 SSD work at near maximum advertise speed if you use a 'PCIe 3.0 x8 to M.2.' adapter? Technically PCIe 4.0 x4 is equal to PCIe