If a Z270 Kaby Lake upgrade is on the horizon then a compact mini-ITX motherboard unlikely to be the first port of call in a market dominated by ATX. However, buyers need not be so hasty to dismiss mini-ITX motherboards of the Z270 generation since most are very well equipped, even for a power user. MSI's Z270i Gaming Pro Carbon AC illustrates this point well and is an interesting proposition for anyone looking to down-size their PC.