How to connect two monitors to one computer with one vga port?

by Lisa Hayden

Know that having two displays allows you to expand the data on the principal desktop or to deal with different types of outputs on each monitor. You will require a VGA or Video Graphics Array for this. Many PCs only have one VGA port. This does not preclude you from extending the desktop. When you discover that your computer only has a single VGA port, you have two options: replace the video card with one that supports two VGA connections or utilize a VGA splitter with a USB port. The VGA splitter requires a lot of power, which may be supplied by connecting the USB to a computer's USB port.


Can I have dual monitors with only one VGA port?

Yes, you can have dual monitors with one VGA port. To connect the monitor to the desktop, you typically require video interfaces such as Display Port, DVI, VGA, or HDMI. The VGA, or Video Graphics Array, the standard is used to link computers to displays. Blue plastic is commonly used to color label them. Because VGA is analogue, it should only be utilized if both the monitor and the computer lack DVI connectors.


Having two displays may significantly boost productivity. Even if you just have one VGA connector, you may enjoy this dual-monitor arrangement.

Please remember that a VGA splitter is insufficient, therefore you must verify your PC's specifications to see whether it can support a two-monitor arrangement. If it cannot, you must get a graphics card that supports this capability.

When you do that, just put your VGA wires into a VGA splitter to enlarge your screen.

  • VGA, or Video Graphics Array, is a standard used to connect computers to monitors. Because VGA is analogue, it should be used only when both the monitor and the computer lack DVI ports. You must check your PC's characteristics to determine whether it can support a dual-monitor setup. If it cannot, you will need to get a graphics card that supports this functionality.

How do I add a second monitor to one VGA port?


Change the Video CardYes, this is a long-term answer, but it can be costly.

Replace the old video card with one that supports two VGA ports. This may necessitate time, experience, and money. As a result, we propose that you replace the graphics card if you are prepared and certain that you will honor the two VGA ports.

Get a VGA Splitter - The VGA splitter is a tiny electrical device that can solve your problem in an instant! This isn't too pricey, and the setup process isn't that tough either.

Can VGA Splitter extend the display?


In most cases, the splitter can simply replicate or mirror the same desktop or user interface. Splitters did not expand desktop programmes on their own in 2012 when Windows XP was the prevalent operating system throughout the world. They required video cards with desktop extension services for desktop splitting to be possible.

To accomplish the desktop extension, you'll need more than a VGA splitter and at least two monitors. To enable the splitting to take place, you'll also need the necessary software and a suitable video card. Otherwise, the most you'll get from your splitter is screen mirroring or duplication. You can do screen extensions or flip between single screen, split-screen, and desktop extension modes on and off after you have a video card, a VGA splitter, and monitors for the purpose.

  • Splitters did not independently extend desktop programmes in 2012 when Windows XP was the dominant operating system. For desktop extensions to be possible, they required video cards having desktop extension services.

What type of splitter do I need for dual monitors?

HDMI - An HDMI splitter divides a video signal so that it may be displayed on two displays. When you obtain the second monitor, you don't have to buy the entire system along with it. All you need is a splitter and you're ready to go.

The splitter allows the user to send a signal to another screen, but up to 10 screens. As a result, an HDMI splitter can have more than two outputs for separating the signal from a single device. If your device does not have HDMI ports, an HDMI adaptor is an ideal splitter.

You must first establish the number of displays you intend to connect to a single source before selecting an HDMI splitter for a dual monitor. A splitter with several inputs is ideal if you wish to broadcast material on numerous monitors or TVs. A 1x2 splitter is an excellent choice for displaying through dual monitors.

  • An HDMI splitter separates a video signal so that it may be displayed on two different screens. The splitter allows the user to send a signal to up to ten other displays. If your device lacks HDMI ports, an HDMI adapter is an excellent splitter. If you want to broadcast content to many monitors or TVs, a splitter with multiple inputs is excellent.

One of the best HDMI Splitters that you can go for is as follows. 

Avedio Links 4K HDMI Splitter For Dual Monitor - Avedio supports both video and audio streams, making the connection as simple as plugging in. The splitter is activated, providing the best signal with little latency and operating effectively over extended distances.
2. OREI HDMI Splitter - OREI is a splitter with exceptional features and capabilities that have graced the market. The splitter has a 4k display to guarantee that you get the highest resolution for gaming and streaming. OREI is operational, allowing it to service two monitors that are physically separated from one another. The two-input splitter works flawlessly to provide the greatest possible display while utilising the basic, universal HDMI connector.
OREI HDMI Splitter

VGA – The second type of splitter for dual monitors is the VGA splitter.  VGA ports, which are considered ancient hardware by today's standards, may still be found on the majority of PCs and monitors. This version does not support audio and had a maximum resolution of 640 × 480 at first. Although modern VGA may provide resolutions of up to 1080p, it still lacks the audio capability. VGA ports are always blue and have a trapezoid shape.

VGA splitter

DVI – Third, is the DVI splitter. A DVI port's video capabilities can match, or even exceed, those of an HDMI connector. The most notable distinction is that HDMI connections can transport audio whereas DVI cables cannot. DVI ports became less common as HDMI connectors got increasingly prevalent. DVI ports are white and have a 24-pin connection as well as a flat pin connector.

DVI splitter

DisplayPort - DisplayPort is new on the block, capable of astounding resolutions and frame speeds, and it's sweeping the PC industry by storm. DisplayPorts are rounded rectangles with one corner chopped off, similar in size to HDMI ports. DisplayPort may handle resolutions and frame rates of up to 8k at 60 frames per second (FPS), 4k at 144 FPS, and 1080p at 240 FPS. The last is the DisplayPort Splitter, which allows you to connect monitors to one DisplayPort. 

DisplayPort adapter

How to connect three monitors to one computer with one VGA port?

There are a bunch of ways through which you can connect three monitors to one computer that has only one VGA port. 

Firstly, you need to check for various video ports available on your computer. 

  • Even though your PC only has one monitor output, you can use an external multi-display adapter to operate three separate displays.

  • If you don't want to spend the money on an external multi-display adaptor, you may acquire a USB to HDMI adapter. You'll need one adapter for each extra monitor, so if you already have one, simply plug two of these adapters into your PC's USB ports, connect a couple more monitors to the other end, and you're done! You get a three-monitor extended desktop.

  • You may connect up to three extra displays to your computer via a docking station. Simply connect your computer to the docking station using the included USB host connection, and then connect your additional displays to the docking station's DisplayPort and HDMI connectors.

  • Even though your computer only has one VGA connection, you may attach up to three monitors to it in a variety of ways. You may require an external multi-display adapter or a USB to HDMI converter. You'll need one adapter for each additional monitor, so if you already have one, simply connect two of these adapters to the USB ports on your PC.


Many job circumstances need the use of many monitors. Whether you are a programmer or an artist, using two monitors increases your productivity and brings your work to life. Dual monitors will boost the efficiency with which you can utilize your computer. The additional screen area is also ideal for video conferences and meetings, allowing you to retain your workflow on one screen and your video chat on another. Each person on the call can be seen clearly, with a complete second screen. It is not difficult to connect a second monitor with only one VGA port. In the preceding article, we reviewed all conceivable methods for connecting two monitors to a single computer with only one VGA connection.

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