"1x4Port SATA III PCI-EXPRESS 2.0 x1 controller card"
How is this working with multiple disks? One HDD disk max speed seems to be normally in category of 180M and PCI 2.0 x1 tops out in 500M. Any problems seen because of this?
I am personally looking to buy asrock Mini ITX board and comparing J3455-ITX, J3355B-itx and some similar newer ones where B model seem to have x16 (in x2 mode) PCI connector which would have 1000M speed. B models have then only 2 sata ports on the board though.