Quad NVMe PCIe Adapter, RIITOP 4 Port M.2 NVMe SSD to PCI-e 4.0/3.0 x16 Card with Fan for 2230/2242/2260/2280 SSD (PCI-e Bifurcation Required) - Newegg.com
Amazon.com: ADT-Link M.2 NGFF NVMe Key M Extender Cable to PCIE x16 Graphics Card Riser Adapter 16x PCI-e PCI-Express for M2 2230 2242 2260 2280 (25cm) : Electronics
ORICO M.2 NVME to PCI-E 3.0 X16 Expansion Card (PSM2-X16)
The Dell 4x m.2 PCIe x16 version of the HP Z Turbo Quad Pro