Cross-spec hybrid external cable: High-density SFF-8644 Mini SAS HD port converts to traditional SFF-8088 26Pin Mini SAS interface for mixed new & old storage hardware; Compliant with SAS 2.0 standard, stable 6Gbps transmission for SATA/SAS HDD, RAID controllers and external JBOD enclosures; Strict 100-Ohm controlled twinax impedance minimizes signal reflection, crosstalk and attenuation over long-distance wiring; 2-meter extended length meets cross-rack, multi-cabinet routing demands of large-scale data center deployments; Multi-layer aluminum shielding blocks EMI interference; gold-plated locking connectors resist vibration for 24/7 round-the-clock operation