Direct conversion: standard 22Pin SATA (7 data +15 power) male to 29Pin SFF-8482 SAS female interface; Full SATA III 6Gbps bandwidth, stable high-speed transmission for SAS server hard drives; Wide compatibility with both 2.5 -inch and 3.5 -inch SFF-8482 direct-attached SAS HDDs; Gold-plated precision pins cut signal attenuation and resist oxidation for long-term use; Compact riser board design, plug-and-play for desktop motherboards without extra drivers