M.2 (NGFF) SSD M Key to PCI-e Express 4X Adapter 40mm X 100mm with separate 4 Pin Floppy to 15 Pin SATA Power Cable. Cable is 6 Inches. This adapter allows user to use a standard PCIE base M.2 SSD to PCIe x4 in the Desktop or custom built chassis. Standalone unit mounts vertically in a chassis saving space. Power is supplied form a separate 4 Pin connection cable directly from a power supply. Learn More