Features: Compatible with M.2 NVME and NGFF (SATA): Eluteng m.2 to usb adapter, corresponds to two different hard drives. It supports M.2 NVME or NGFF (SATA) in 2230/2242/2260/2280mm sizes. Compatible with B-key, M-key and B+M-key. Meet the needs of different scenarios and save time, effort and money by eliminating the need to deploy two additional hard drives! Note: PCI-E AHCI protocol is not supported. High Speed & Stability: The m2 usb adapter external output port is USB3.1 GEN2 USB Type-A. The theoretical transfer speed is 10Gbps for NVME protocol and 5 Gbps for NGFF protocol, with a substantial increase in read speed and a rise in transfer speed for large files, using RTL9210B chip with UASP and TRIM functions. Reduced CPU load, lower consumption, faster speed and higher durability. 4TB large capacity: Up to 4TB SSD can be installed. backward compatible with USB3.0/USB2.0 interface, read speed: 1000MB/s (This data is for reference only). Compatible with Windows 11/10/7/Mac OS/Linux systems. Heat Dissipation Design: PCBA board surface is processed with copper rod to prevent abnormal heat generation of the product. Heat dissipating silicon based chip design is used. In addition, a heat dissipation silicone patch is included to effectively prevent excessive temperature. Easy to use: NGFF/NVME compatible. Comes with screws and screwdriver, easy to install M.2 NVME and NGFF (SATA), easy to use and portable. Built-in high quality master chip for stable data transfer, capable of reaching 10Gbps transfer rate! The external output port is USB3.1 GEN2 USB Type-A, which improves read/write efficiency for large amounts of data and accelerates the transfer of large files. Widely Compatible Direct connection to computer, no cables required, convenient and quick. Compatible with Windows 7/8/10/11/ Mac OS / Linux Suitable for different size of NVMe/NGFF SSD Suitable for different size Suitable for size 22*30/22*42/22*60/22*80mm NVMe/NGFF SSD M key/B key/B&M key support Supports M key, B key and B + M key SSD. PCI-E AHCI is not supported.