PCI-E 3.0 x4 to M.2 NGFF M Key SSD Nvme Card Adapter PCI Express with Power Failure Protection 4.0F Super Capacitor With 12cm/9cm standard PCI bracket With Cooling Fan PCI Express 3.0 x4 Lane Host adapter Supports PCIe Gen3 and PCIe Gen2 M.2 NGFF 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. System requirement: 1.Motherboard: Z97 or later 2.Windows 10 or later Note:The adapter only work forM-keysocket, cannot work forB-key or B/M-keysocket.