1.40Gbps Transmission Speed: This M.2 NVMe case reader equips with USB4 (Type-C) output interface and 40Gbps USB4 C-to-C data cable, the read and write speed can reach 2786MB/s. 2.Only for NVMe M.2 SSD: The SSD Enclosure is specially designed for M Key NVMe SSD up to 8TB capacity. The applicable M.2 SSD size is 2230/2242/2260/2280. A large-capacity external storage expansion device especially suitable for Macbook and other devices. 3.Intelligent and Powerful Chip: With the built-in ASM2464 chip, support for UASP acceleration protocol, and equipped with a USB4-compatible Type-C interface, this 40Gbps M.2 NVME SSD Enclosure is compatible with Thunderbolt 4, USB4/3.2/3.1/3.0/2.0 and Windows 7/10/11, Mac OS 10.3 or higher, and Linux systems. It is an ideal choice for game lovers, video editors, photographers, and office workers. 4.Tool-Free and Compact: This NVMe enclosure is made of low-density and high-strength aluminum alloy material, strong, durable and anti-corruption, lightweight, luxury and delicate feeling. By adopting whole hand shaped technology, this clip-type enclosure supports easy and quick tool-installation, no screws needed.