This M. 2 M-Key to Oculink host adapter supports PCIe 4.0 transmission standard, converting a motherboard M. 2 M-key slot into an Oculink SFF-8611/SFF-8612 external port. It only works with 2260 form factor NVMe M. 2 SSDs, perfect for connecting external Oculink storage enclosures, disk arrays and high-performance JBOD devices. Integrated professional shielding structure effectively eliminates electromagnetic interference to maintain high-speed and lossless data transfer under continuous heavy workloads. The mini-sized card saves internal chassis space and simplifies wiring layout. It supports mainstream operating systems including Windows and Linux with plug-and-play functionality, widely applied in workstations, industrial servers and professional data storage systems.