How to Set Up Dual Monitors on a Mac
Officially, some MacBook Air and MacBook Pro models only support one external monitor. Before purchasing monitors, double-check thenumber of external displays your Mac can support. From the results page, selectList of Modelsand then chooseIdentify your model. If you don’t see this option, look for a technical specifications result. Scroll down the results page until you find your Mac model, and then select theTech Specslink. Find theVideo Supportsection, and look for supported display details....