Product Description: 1, M.2-MKEY PCIE 4.0 GEN4, 8GB\S offerirectional bandwidth 2, Using silver-plated shielded cable, double-layer cable, thickness 2mm, width 12mm. 3, Support PCIE 4.0 devices, backward compatible with PCIE 3.0 4, Gold finger sinking process, using high-density low-impedance circuit board. 5, Using LOTES connector H3.2mm gold plating. 6, The cable can be bent and folded to adapt to small space installation 7, Support nvme 2230, 2242, 2260, 2280, 22110 SSD, does not support SATA protocol. 8, PCB 0.8mm thickness, shearable, impedance control 85Ω