Most people know what a DVI (digital video interface) connector is, but may not be aware of the different types. There are two main types of DVI connectors- DVI-I and DVI-D. The difference between the two is that the D type can only carry a digital signal, while the I type can carry both a digital and an analog signal. This makes it backward compatible with VGA connectors.


What is a DVI-I port and what does it do?

A DVI-I port is a connector that can be used to connect an analog or digital monitor to your video card. This means that regardless of the type of monitor you have, you should be able to connect it using a DVI-I cable. Even if your computer does not have a digital-only monitor, but only has the analog type, you should be able to use a DVI-I cable to connect it.

What are the benefits of a DVI-I connector?

The biggest benefit of a DVI-I cable is that it can be used with both digital and analog monitors. This makes it more versatile than the DVI-D connector, which only works on digital monitors. A DVI-I cable can also be hot-swapped, so you do not have to shut down your computer every time you need to switch cables.

What is a DVI-D port and what does it do?

A DVI-D connector can carry only a digital signal. As mentioned, this means that if your monitor does not have the ability to read digital signals, you will not be able to connect it using a DVI-D cable. The good news is that unless your monitor is an HDTV, which can read both types of signals, you will not have any use for a DVI-D port on your video card.

What are the benefits of a DVI-D connector?

The main benefit of a DVI-D port is that it can be used to connect a digital monitor only. This makes the connector more reliable since there is less chance of error. Since you cannot connect an analog monitor using this type of port, there will not be any issues caused by backward compatibility.

What are the differences between a DVI-I and a DVI-D connector?

The main difference between a DVI-I and a DVI-D connector is that the former can carry an analog signal as well as a digital signal, while the latter can carry only a digital signal.

The other difference lies in usability. Since DVI-D ports can be used only for digital monitors, they are more reliable. Also, since analog signals can cause problems on digital monitors, using a DVI-I cable may not work as well as a DVI-D cable would.

Pros DVI-I vs DVI-D

  • DVI-I is able to carry analog and digital signals.
  • DVI-I can be connected in any way to a monitor, DVI-D must only be connected one way (looking at the front of the connector).
  • Both can support dual-link and quad-link connections.
  • For converting something like an old VGA card to DVI, it is much easier with a DVI-I port.
  • DVI-D is used almost exclusively for digital video connections.
  • Many cards only have digital outputs while others may have both analog and digital. Just make sure you get the right one for your monitor connection type.

Cons DVI-I vs DVI-D

  • If you have a DVI-D port and a VGA monitor, you cannot use it. You will need a DVI-I or HDMI cable to connect to your monitor.
  • DVI-I is more expensive since the connector itself has features that are not really needed for digital connections.
  • A DVI-D connection does not support HDCP, while a DVI-I connection does.
  • DVI-I allows DFPs (data formatters), DVI boosters, and dual/quad link converters to be used.
  • In many cases, a VGA monitor cannot be converted to Digital with a converter cable because the converter technology is not compatible with DVI-I. DVI-D does not need any converter cables unless you want to convert from another Digital connection (e.g. HDMI).
  • A DVI-D port cannot be used with a TV that uses an analog connection; it will only work with a monitor which is compatible with digital signals.

DVI-I is not much different from DVI-D, it just has the capability to carry analog signals as well as digital ones. Since this is not really needed for most digital connections, DVI-I cables are more expensive than their counterparts. A DVI-I port allows converters that are able to connect VGA or HDMI monitors with a simple

Is DVI-D the same as DVI-I?

Yes. DVI-D is a type of DVI connector that only carries digital signals. DVI-I connectors can carry both analog and digital signals, making them more versatile than the DVI-D connector.

Is there a difference between DVI and DVI-D?

Yes, there is a difference between DVI and DVI-D connectors. A DVI-D connector can carry only digital signals while a DVI-I connector can carry both analog and digital signals.

No, the only difference between the two types of cables is that one carries an analog signal while the other carries a digital one.

Do DVI-I and DVI-D cables carry the same signal?

Yes, both types of cable can carry digital signals. However, some older cards may not support the use of digital video with a DVI-I cable.

Can I use DVI A in DVI-D?

Yes, you can use DVI-A to DVI-D cable. The DVI-A port on your graphics card will accept both analog and digital signals so it is compatible with either type of cable.

Is DVI outdated?

DVI is not outdated. Some graphic cards are only compatible with DVI while others can be used with a VGA connector, HDMI, or other types of cables. DVI is the most commonly available connector for digital displays while analog signals are typically carried through VGA or composite cables.

What is DVI to VGA adapter?

A DVI to VGA adapter is used to connect a device that has a DVI-D port to an external monitor that uses VGA technology. This allows you to receive digital video output from any compatible device.


A DVI-I port is able to carry both an analog and a digital signal while a DVI-D port can only carry a digital signal. The DVI-I connector is more versatile since it can be used with both types of monitors, but the DVI-D connector is considered to be more reliable.

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