20Gbps SuperSpeed+ transfer rate MS12 is an USB 3.2 Gen2x2 Type-C enclosure made for NVMe M.2 solid state drives that is capable of reaching up to 20Gbps of transfer rate Aluminum alloy case and built-in thermal pad MS12 is designed to effectively cool high performance M.2 NVMe SSD, even during prolonged burning sessions of 4+ hours, the MS12 can keep installed SSD running at maximum speed and stability