Each major revision of the Serial ATA interface specification has doubled the maximum data transfer rate.
Note that SATA 6 Gbps cables are backwards compatible and can be used with SATA 3 Gbps and SATA 1.Monoprice™ SATA 6 Gbps cables are certified to provide maximum speeds from your SATA system, up to 6 Gbps when used with equivalent devices and controllers.One end of this internal cable features a straight connector, while the other end uses a 90-degree connector, which can make for better cable management in some situations, especially in tight spaces.