There are a total of eight SATA connectors - they are divided into two Intel 6Gbps ones (two rightmost connectors in white), four Intel 3Gbps connectors (black ones), and two 6Gbps connectors from the ASMedia AMS1061 controller (two leftmost ones, also in white). On a side note, this photo also shows you an internal USB 3.0 connector (to the right of the SATA ports) that is driven by the Intel Z77 chipset.