I want to install 2 Pair Corsair into the motherboard. It has 4 slots 2Blue 2Black. A1_B1 are Blue, A2_B2 are black. Now Asus states Channel A is dimm A1 blue and dimm A2 black is this right for dual channel? You would think they would go in the same color slots but thats not the way it says to do it. kind of confusing.

Try it and watch the bios screen to see if it says dual channel enabled.

"Channel A is dimm A1 blue and dimm A2 black is this right for dual channel?" You want to run DUAL channel, that means A + B. If you use slots A1 + A2, they'll both be on channel A, therefore the RAM will run in single channel mode. Since you're installing 4 sticks, there should be no problem, unless you have an older system that underclocks the RAM when all 4 slots are used?