29 pin DVI female connector at the computer.
24 pin DVI-D female connector at the computer.
DVI (Digital Visual Interface) is a video interface developed by the Digital Display Working Group (DDWG) in 1999 to carry uncompressed digital video from a computer to a display, while optionally keeping the analogue VGA signals for backward compatibility. Digital video is sent over TMDS (Transition Minimised Differential Signalling) links: a single link drives resolutions up to about 1920×1200, and a dual link adds a second set of TMDS pairs for higher resolutions. The connector comes in three variants — DVI-D (digital only), DVI-A (analogue only) and DVI-I (integrated, both); the analogue pins C1–C5 are present only on DVI-A and DVI-I. The full DVI-I connector shown here has 24 digital pins plus 5 analogue pins.
| Pin | Signal |
|---|---|
| 1 | T.M.D.S DATA 2- |
| 2 | T.M.D.S DATA 2+ |
| 3 | T.M.D.S DATA 2/4 SHIELD |
| 4 | T.M.D.S DATA 4- |
| 5 | T.M.D.S DATA 4+ |
| 6 | DDC CLOCK |
| 7 | DDC DATA |
| 8 | ANALOG VERT. SYNC |
| 9 | T.M.D.S DATA 1- |
| 10 | T.M.D.S DATA 1+ |
| 11 | T.M.D.S DATA 1/3 SHIELD |
| 12 | T.M.D.S DATA 3- |
| 13 | T.M.D.S DATA 3+ |
| 14 | +5V POWER |
| 15 | GND |
| 16 | HOT PLUG DETECT |
| 17 | T.M.D.S DATA 0- |
| 18 | T.M.D.S DATA 0+ |
| 19 | T.M.D.S DATA 0/5 SHIELD |
| 20 | T.M.D.S DATA 5- |
| 21 | T.M.D.S DATA 5+ |
| 22 | T.M.D.S CLOCK SHIELD |
| 23 | T.M.D.S CLOCK+ |
| 24 | T.M.D.S CLOCK- |
| C1 | ANALOG RED |
| C2 | ANALOG GREEN |
| C3 | ANALOG BLUE |
| C4 | ANALOG HORZ SYNC |
| C5 | ANALOG GROUND |
Notes
- DDC = Display Data Channel.
- T.M.D.S. = Transition Minimized Differential Signal.