Make sure that your graphics card supports multiple monitors. You can tell whether it does by checking the input ports on the back: If it has multiple input ports (DVI, VGA, HDMI, or DisplayPort), it should support multiple monitors.
What graphics card do you need for dual monitors?
You do NOT need to have 2 graphics cards for 2 monitors. Almost all graphics cards these days, integrated or dedicated, support three more monitors. You do, however, need to have two ports on your PC in order to connect the two monitors.
How do you check how many monitors your graphics card can handle?
The best way to find out whether your graphics card supports multiple monitors is to find the name of your card (Control Panel > Device Manager > Display Adapters) and Google it with the monitor setup you’re looking to run (e.g. “Nvidia GTX 1660 four monitors”).
Can my PC handle 2 monitors?
Any modern desktop or laptop PC has the graphics capability to run dual displays. All that’s required is a second monitor. Today’s monitors typically come with some combination of VGA, DVI, HDMI, and DisplayPort ports. In other words, you’ll have a couple of options for how to connect the monitor to your PC.