Your board has got only sata ports, so you need to use a non-expander backplane. AXX6DRV3G only.
Refer to this post:
Let us know if you have any questions.
All the best,
We'll buying SCSASRB card, so it doesn't matter, as I understand. Though we still buy non-expander bay, because, first, bays with with expander is out of stock anyway and second, we will buy additional hot-swap bays for 5.25'' and install 2 drives there, so for abilty to use all 8 channels we're forced to use DRV3G and 8087 to 4SATA cables.
Anyway, thanks for the answers, I've got the answer I needed.