Use an adapter, such as an HDMI to DVI adapter. This works if you have two different ports for your laptop and your monitor. Use a switch splitter, such as a Display splitter to have two HDMI ports. This works if you have only one HDMI port on your laptop but you need two HDMI ports.
Another device you can purchase that expands the number of displays you can use is an HDMI splitter adapter. This lets you expand your single HDMI port to two external displays. No power input is required.
Can I use an HDMI splitter for 3 monitors?
HDMI Splitter Just plug the single USB end into your computers HDMI port, and plug each of your two monitors into each of the two HDMI ports at the other end of the adapter. If youre looking to display on 3 multiple screens, then this device can be at least one tool in your overall toolbelt.
How do I add another HDMI port?
You simply connect the HDMI switchs output port to your TV via an HDMI cable, and then connect up to three other HDMI devices into the switch. This means it will in essence grant you an extra two ports, since youre still using one of the TVs ports to connect it all up.