Because you don't use the SSD in your PC, so you can use any SATA ports and any SATA cables for your HDD, Optical Drive. Check the link for SATA cables performance. Don't matter what kind the SATA cable.http://www.maximumpc.com/article/features/your_sata_cable_slowing_down_your_data_transfers_max_pc_investigates
If you use the SSD then you need connec it to the SATAIII ports.
And if you use the SATAIII_A0 or SATAIII_A1, then you need install the ASMedia ASM1061 driver.