

To connect additional DVI displays, use an active DVI adapter such as the Apple Mini DisplayPort to Dual-Link DVI adapter.

Mac Pro supports a total of two DVI or HDMI displays when connected via the built-in HDMI port or using the Apple Mini DisplayPort to DVI adapter. If you connect a third DVI display using a passive adapter or a display via HDMI, it will cause one of the three displays to become inactive.Ĭan I connect more than 2 DVI or HDMI displays? Mac Pro supports a total of two single-link DVI displays. Use a Dual-Link DVI adapter such as the Apple Mini DisplayPort to Dual-Link DVI adapter for resolutions up to 2560x1600.

Use a single-link DVI adapter such as the Apple Mini DisplayPort to DVI adapter for DVI displays with a resolution up to 1920x1200. Mac Pro supports DVI displays using Mini DisplayPort to DVI adapters. This from the article lllaass linked above:
