StarTech.com Dual M.2 PCIe 4.0 x8 x16 to Dual NVMe or AHCI SSD (DUAL-M2-PCIE-CARD-B)
RIITOP NVMe Adapter M.2 PCIe SSD to PCI-e x4/x8/x16 Converter Card with Heat Sink for M.2 (M Key) NVMe SSD 2280/2260/2242/2230 mm - Newegg.com
MAIWO M.2 NVMe SSD to PCIe 3.0 X16/X8/X4 Adapter Converter Card Support M.2 Hard Drive Speed Up,2230 2242 2260 2280,Compatible with Windows 7/8/10 & Linux
Dual M.2 PCIe NVMe Adapter Without PCIe Splitter Function (PCIe Bifurcation Motherboard is Required), Support M.2 PCIe 4.0/3.0 SSD Soft RAID Setup in Windows/Linux
PCI-E X8 2- Port NVMe M.2 M-Key Extended Card - NWCA Inc.
HPE Mixed Use - SSD - 1.6 TB - PCIe x8 (NVMe)
M.2 NVMe SSD To PCIE 3.0 X16/X8/X4/X1 Desktop SSD Adapter Card PCIe X1 To M.2 Card With Bracket M-Key M.2 NVME Input Interface - Walmart.com