What does the X4 mean in an M.2 PCIe Gen 3.0 X4 NVME drive? Solved - Windows 10 Forums
PCIe 3.0 X4 PLX8724 to 4 Port M.2 NVMe SSD Adapter Expansion Card Quad Mkey Nvme to Pci E Converter for PC 32G/bps win10 linux|Add On Cards| - AliExpress
Internal M 2 SSD Solid State Drive M 2 NVMe PCIe 3.0x4 128GB 256GB 512GB 1TB lot | eBay
Pci Express 3.0 X4 To M.2 Nvme Ahci Ssd M Key Connector Full Speed Pci E Riser Card Adapter Supports 2242 2260 2280 Size M2 Ssd - Add On Cards & Controller Panels - AliExpress
RIITOP PCI-e Nvme M.2 Adapter NVMe or AHCI M Key SSD to PCIe 3.0 x 4 C