Amazon.co.jp: PCIE 3.0 x 4 NVMe Adapter Card for NVE m.2 SSD PCIE x4/x8/x16 PCIE3.0 GEN3 LAN Expansion Card : Computers
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
In The Lab: Netstor NP631N M.2 NVMe to PCIe Host Adapter - StorageReview.com
PCI-E to M.2 Adapter for Raspberry Pi CM4 IO Board | The Pi Hut
Buy the kingshare KS-NVX401 M KEY Nvme M.2 SSD to PCI-e X4 3.0 Converter... ( ENCOEM0010 ) online - PBTech.co.nz
Amazon.co.jp: M.2 NVMe SSD NGFF to PCIe Adapter M.2 PCIe Adapter B Key/M Key to PCI-e 3.0 x 4 Host Controller Expansion Card with Low Profile Bracket, Dual M2 Adapter Support SSD:
SL-ADP-PCIe-M2 M.2 SSD to PCIe adapter by SoMlabs
Amazon.co.jp: M.2 PCIE Adapter, 4-Port M.2 NVME SSD-PCIE X16 Adapter Expansion Card, Support M.2 NVME SSD, M.2 PCIE, with Individual LED Indicator (PH44) : Computers
Amazon.co.jp: M.2 NVMe SSD to PCIE 3.0 X 4 Adapter M Key Interface Card Support PCIE x 4 x 8 x 16 Slots : Computers
5 Best M.2 PCIe Adapters (For Mounting and Speeding Up Your M.2 NVMe SSDs)