The X299 Gaming Pro Carbon AC is a new high-end motherboard from MSI. Compared to what could be seen as the predecessor, the X99A Gaming Pro Carbon, MSI apparently chose to reposition the Gaming Pro Carbon model in their portfolio more towards the high-end segment. Therefore you find many interesting features on this board such as two M.2 slots and an extensive RGB lighting implementation.
Already at launch MSI has a complete portfolio of X299 motherboards. The X299 Gaming Pro Carbon AC is basically the successor to the MSI X99A Gaming Pro Carbon and therefore it shares many of the visual details as well as features. Nevertheless, in our opinion MSI has managed to make the new board look even better than the old one and there is even the one or the other neat new feature.