![]() We were able to repeat the results on the Plugable USB-C Triple 4K Display Dock ( UD-ULTC4K) across DisplayPort and HDMI ports. On both of our computers, M1 powered MacBook Pro and MacBook Air, we successfully extended our video output to three external displays running at 1920x1080. In our initial testing, we used the Plugable USB-C Triple Display Dock ( UD-3900PDZ). We found the trick for connecting multiple displays to your M1 powered Mac is a Plugable DisplayLink docking station. ![]() But when have we ever been satisfied with what it says on the box? Sure enough, out of the box, these new computers work as described: one external screen on the MacBook Pro and Air when connected to our Thunderbolt docking stations that support 2 displays on Intel-based Macs. Naturally, we wanted to see how accurate that was. Per the specifications, the Mac Mini will natively support up to two external monitors (One via the HDMI port and a second via USB-C), while the MacBook Air and MacBook Pro 13″ only support one external display. But there is one thing that caught our eye: a reduction in the number of external displays you can connect. Two displays can be connected to the last Thunderbolt device in the chain, therefore you need a Thunderbolt device for each of the displays before that (a Thunderbolt Display is a Thunderbolt device with built-in display so they'll do the job), or maybe a Thunderbolt 4 hub could work - they have three downstream Thunderbolt ports, so two Thunderbolt ports can be used for two displays and one Thunderbolt port can be used to connect the downstream Thunderbolt device for the other two displays.Apple’s new Mac Mini, MacBook Air, and MacBook Pro 13″, the first Macs to feature the Apple-designed M1 CPU, are showing a lot of potential across the board in comparison to their Intel-based counterparts. The displays would need to be connected so that they only use HBR link width (1440p) because Thunderbolt 3 couldn't do more than 4 of those. I don't think anyone has tried this - the OS might not allow it. Two would be controlled by the AMD GPU and two would be controlled by the Mac mini 2018's Intel GPU. Now, the Mac mini 2018 has a Thunderbolt controller with two DisplayPort inputs, and the Blackmagic eGPU has a Thunderbolt controller with two DisplayPort Inputs, so theoretically, you could connect four displays to the Thunderbolt port of the Blackmagic eGPU. Thunderbolt monitors get DisplayPort from the upstream GPUs that are connected to Thunderbolt controller DisplayPort inputs (two per controller). Blackmagic eGPU Pro has an additional DisplayPort for a fourth display but it is discontinued. A single Thunderbolt connection can do two 4K 60Hz 10bpc RGB displays, while DisplayPort 1.2 MST can only do two 4K 30Hz displays (or 1440p60 displays).Ĭlick to expand.Blackmagic 580 has one Thunderbolt port and one HDMI port = 3 displays max. Thunderbolt will have double the bandwidth of DisplayPort MST. can't really say DisplayPort 1.2 is supported if you don't support MST).Īnyway, in the case of the Mac mini 2018, if you want to connect two DisplayPort displays to the same port, then use a Thunderbolt dock or a Thunderbolt to Dual DisplayPort adapter. Maybe lack of support for MST is one reason why Apple will not report what version of DisplayPort a Mac supports (i.e. Use Boot Camp or Linux to see multiple displays. MacOS does not support MST for multiple displays. The last display can be a normal display that does not support daisy chaining. You can daisy chain multiple displays this way. The other output is external and can be used to connect another display. One output is internal and is used by the display. The display has a DisplayPort input (the MST hub's inputs) and two outputs (the MST hub's outputs). DisplayPort daisy-chaining is where a display acts as a DisplayPort MST Hub.
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