Micro ATX motherboards are easily compatible with mid-tower cases. ATX mid-tower cases typically house standard ATX motherboards, though users can still install micro ATX motherboards. Depending on the understanding, an ATX PC case can house either an ATX motherboard or a mini ITX or micro ATX motherboard. There is only a difference when it comes to upgrades and components fitting with an equivalent motherboard. However, know that the motherboards for ITX are limited in scope and only provide access to relevant components.