I can confirm that there are 2 Native Intel Sata 6 and 4 Intel Sata 3 ports
It's the same motherboard that I use
Then why does the layout state they are Marvell 9128 controllers?
Because not every piece of information is 100% accurate on the Intel website. I can refer you to so many MINOR mistakes here on Intel. However, the information that matters is always correct
PS that's a very good board you have
I am sorry for the misunderstanding.
The Intel® DH67CL desktop motherboard only has the Intel® SATA controller which provides both 6Gb/s and 3 GB/s connections as described in the technical product specification linked below (Peripheral Interfaces, page 12).