Which is better, PULIAN ax or ac?

Ac. According to the query of UPL official website, AC is a dual gigabit router and ax is a single gigabit router. Ac dual Gigabit covers a large area, and the wall penetration effect is better than ax single Gigabit. Router refers to a device in a computer network, which is used to connect multiple networks with different network protocols, so that information can be transmitted from one network to another after conversion.