SATA III cable is designed to connect motherboards and host controllers to internal Serial ATA hard drives and DVD drives, quickly upgrading your computer for expanded storage. Please be kindly noted that this cable does not provide power for your hard drive. It must be powered separately.
More reliable data transmission: 15u gold-plated SATA terminals and the use of shielded high-speed SAS wire materials achieve lower signal attenuation than traditional SATA wires and avoid signal crosstalk between data lines.