M. 2 M-Key to Oculink SFF-8612 Adapter PCIe 4.0 x4, gen4, 64G/bps (Max. ) It can support M. 2 NVMe interface up to 2280 height and can be cut as needed Using Amphenol Oculink SFF-8612 connector, supports PCIe 4.0 full-speed stable transmission UL certified PCB material, gold finger gold-plated 15µ", good conductivity, can reduce the blue screen problem caused by oxidation and rust resistance increase.