Bidirectional conversion between SFF-8643 Mini SAS HD and U. 2 SFF-8639 interfaces, enables U. 2 NVMe SSD connection to motherboard M. 2 slot or HBA expansion card.; Total length reaches 100cm, meets long-distance internal wiring needs of server chassis, multi-disk expansion cabinets and workstation hosts.; Compliant with PCIe NVMe high-speed transmission protocol, stable high-bandwidth data transfer without speed attenuation or bottlenecks.; Shielded cable structure effectively isolates electromagnetic interference, reliable continuous operation for 24/7 storage array work scenarios.; Precision molded gold-plated connectors ensure tight contact, anti-loosening and signal loss reduction, plug-and-play without extra drivers.