Monoprice 108776 36-Inch SATA Serial ATA Cable While parallel data transfers are theoretically faster than serial transfers the older Parallel ATA (PATA) interface was limited to a maximum data transfer rate of 133 Mbps As an added bonus the smaller connectors and thinner cables made it far easier to route and connect cables within a computer case turning This 36" internal SATA cable is certified for 1. 5 Gbps speeds and is suitable for connection to hard drives optical drives and other internal SATA 1. 5 Gbps devices