1. Use a cable to SATA 7Pin hard drives to 1 Mini SAS SFF-8644 controller. 2. This adapter cable provides reliable high-performance drive and mini SAS controller connection. 3. The converter cable keeps the external mini SAS SFF-8644 to 4xSATA 7Pin connector and the power port. 4. Through the molding process, this server line is suitable for personal computers and used as an adapter cable. 5. Each channel of this adapter cable supports up to 12Gbps, and can maintain 4 SATA 7Pin connections, and each connection carries data and power. Withstand voltage: 300V DC/0.1 second Insulation resistance: 500M?? minimum On-resistance: 5?? max Working current: 0.5A contact current Working voltage: 30V AC rescue voltage Low power contact impedance: 80Mohm max Insertion force: 55.5N max Operating temperature: -20??~85?? Applicable equipment: hard disk and server connection Weight: 480g Material:copper colour:Black Package Contents: 4 x Hard Disk Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.