PCI-E 3.0 x4 Lane Host Adapter Converter Card M.2 NGFF M Key SSD to Nvme PCI Express With 12cm standard PCI bracket With Cooling Fan PCI Express 3.0 x4 Lane Host adapter Supports PCIe Gen3 and PCIe Gen2 M.2 NGFF 110mm�� 80mm�� 60mm�� 42mm SSD Supports PCIe 3.0�� PCIe 2.0 motherboard Compliant with PCI Express 3.0 Support M-key XP941 SM951 PM951 A110 m6e SSD See belowing testing Speed rating.