Converts M. 2 M-Key PCIe NVMe interface to SFF-8643 HD Mini SAS port for external high-speed storage connection; Compatible with standard 2230/2242/2260/2280 M. 2 NVMe NGFF solid state drives, PCIe 3.0 / 4.0 x4 bandwidth supported; Optimized PCB signal layout cuts transmission loss, stable for U. 2 backplanes, multi-bay storage enclosures and RAID servers; Compact PCB design, reserved mounting holes for secure installation inside ATX/MATX/ITX computer chassis; Plug-and-play operation, compatible with Windows and Linux systems for DIY storage upgrade and workstation transformation