DVI-D vs DVI-I
DVI-D carries a digital signal only. DVI-I is “integrated” — it carries both digital and analog, so it can fall back to VGA through a passive adapter. The giveaway is the connector: DVI-I has four extra pins around the flat blade for analog, which DVI-D lacks. A DVI-D plug fits a DVI-I socket, but a DVI-I plug will not fit a DVI-D socket.
Both are part of the DVI connector family and both come in single-link and dual-link versions. The only functional difference is whether analog video is included.
DVI-D vs DVI-I at a glance
| Feature | DVI-D | DVI-I |
|---|---|---|
| Signal | Digital only | Digital + analog (integrated) |
| Analog pins | None | Four pins around the flat blade (C1–C4) |
| VGA via passive adapter | No | Yes |
| Single & dual link | Yes | Yes |
| Fits a DVI-D socket | Yes | No (extra analog pins block it) |
| Fits a DVI-I socket | Yes | Yes |
| Best for | Digital-only setups; universal digital cable | Equipment needing analog/VGA fallback |
Which should you use?
- Digital monitor and digital source: a DVI-D cable is the safe, universal choice and fits both DVI-D and DVI-I ports.
- You need VGA/analog output from the same port: use DVI-I with a passive DVI-I-to-VGA adapter.
- Resolutions above 1920×1200: use a dual-link version of whichever type.
- Connecting to HDMI: either type's digital side works with a passive DVI-to-HDMI adapter (video only).
See the full DVI breakdown on the DVI-D and DVI-I pages, or identify your plug with the connector chart.
DVI-D vs DVI-I: frequently asked questions
What is the difference between DVI-D and DVI-I?
DVI-D carries a digital signal only. DVI-I is integrated — it carries both digital and analog, so it can fall back to VGA through a passive adapter. You can tell them apart by the four extra analog pins around the flat blade on a DVI-I connector, which DVI-D lacks.
Can I plug a DVI-I cable into a DVI-D port?
A DVI-D male fits a DVI-I female, but a DVI-I male does not fit a DVI-D female — the four analog pins on DVI-I have no holes in a DVI-D socket. For digital-only equipment, a DVI-D cable is the safe universal choice.
Does DVI-I carry VGA / analog?
Yes. DVI-I includes the analog pins, so a passive DVI-I-to-VGA adapter outputs an analog VGA signal. DVI-D has no analog pins, so it cannot drive VGA without an active converter.
How do I know which DVI I have?
Look at the connector. DVI-D has only the digital pin block plus a single flat blade. DVI-I adds four small pins around that flat blade for the analog signal. Single-link versions leave the middle two columns of pins empty; dual-link fills them in. See the connector chart.
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