MCIO PCIe SAS SFF-8654 8i to 8x SATA Cable Connects one SAS controller to eight SATA hard drives. High-Speed & Stable Transmission Designed with 85 Ohm impedance for reliable enterprise-level data transfer. Durable 32AWG Copper Wire Ensures low signal attenuation and enhanced anti-interference performance. Multiple Length Options Available in 0.5 m, 0.8 m, and 1m to fit different installation environments. Broad Compatibility Works with RAID cards, SAS controllers, and server motherboards with SFF-8654 8i interface.