ST PEX4M2E1: x4 PCI Express to M.2 PCIe SSD adapters at reichelt elektronik
Amazon.com: ELECTOP NVME PCIe x16 Adapter, M.2 Key-M SSD to PCI 3.0 Express Expansion Card, Support 2230/2242/2260/2280 with Heat Sink, Compatible with Windows XP / 7/8 / 10 & MAC OS System : Electronics