HDMI up to 1080p can be directly adapted from Single-Link DVI - signals and levels are compatible, so the adapter/cable is all wires.

StarTech has been making an ACTIVE adapter direct to HDMI (up to 1080p). It is consistent with the way Apple works, because 'it always works' even for displays wider that 1920 wide.Īccell and StarTech make ACTIVE adapters from Mini DisplayPort to Single-Link DVI. Since Apple only sells the US$100 ACTIVE Dual-Link DVI adapter, that is all they recommend. Shop USB C to HDMI Adapter, USB C to VGA Adapter, 4-In-1 HUB, USB C to 4k HDMI/VGA/USB 3.0/PD100w Charging Multiport Hub Adapter For Nintendo Switch/Macbook Pro/Air/Ipad Pro/Dell Xps/Monitors/Samsung. This requires a powered USB hub since Mac Pro offers four USB ports and you will need six to connect them all. You can connect up to six active adapter DVI displays. 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:

Macbook pro hdmi to vga adapter