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 for M-key socket, cannot work for B-key or B/M-key socket.