Amazon.com: GLOTRENDS Dual M.2 X4 PCIe Adapter for One M.2 PCIe SSD and One M.2 SATA SSD, Support OS Booting from M.2 PCIe SSD or M.2 SATA SSD, Including 2 x M.2
Samsung Unveils First PCIe 3.0 x4-based M.2 SSD, Delivering Speeds Of Over 2GB/s – Techgage
NVMe M.2 SSD to PCIe X16/X8/X4 Card - Sabrent
Ngff M2 Ssd Pci E 4x Slot Adapter Card Key | Nvme Pcie M.2 2280 Ssd Sata Adapter - Pc Hardware Cables & Adapters - Aliexpress
StarTech.com PCI Express 3.0 x4 to NVMe M.2 PCIe SSD Controller Card - Controller card StarTech.com on LDLC
UGT-M2PC130 - Vantec Thermal Technologies
UGT-M2PC200 - Vantec Thermal Technologies
Amazon.com: Trotwei Blue NVMe M.2 PCIe Adapter,M2 M Key SSD to PCI-e x4 Adapter,PCIe to M.2 Adapter for 2280 2260 2242 2230 SSD with Aluminum Heat Sink : Electronics