The chip is what makes the difference for external displays: All models have three USB 4/Thunderbolt 4 ports and one HDMI port. 18, 2021, give new MacBook Pro models expanded options. The M1 Pro and M1 Max chips announced Oct. (But see “Extend with DisplayLink” below.) Mac mini 2020: Two USB 4/Thunderbolt 3 ports, one HDMI port one 4K display plus one up to 6KĮven if you attach a Thunderbolt 3 dock with multiple display connections, you still cannot drive more than one external display over USB 4/Thunderbolt 3 on any of these devices.24-inch iMac 2021, 13-inch MacBook Pro 2020, MacBook Air 2020: Two or more USB 4/Thunderbolt 3 ports one display up to 6K/60Hz.Usually, you halve the number of 4K displays to get the maximum number of 5K or 6K monitors you can attach.Īdd displays to an M1, M1 Pro, or M1 Max Macīasic M1 Macs have significant display limits: Those numbers change for 5K or 6K monitors on Macs that can handle two or more 4K displays over Thunderbolt 3. Mac Pro 2019: four Thunderbolt 3 ports, but a very large number of options for video cards and configurations, with the maximum allowing up to 12 displays at 4K.Mac mini 2018: four Thunderbolt 3 ports, one HDMI port two 4K displays.

iMac Pro 2017: four Thunderbolt 3 ports four 4K displays.iMac 2017 to 2020: two Thunderbolt 3 ports two 4K displays.MacBook 2015 to 2017: one USB 3-only USB-C port one 4K display.MacBook Pro 2016 to 2020: four Thunderbolt 3 ports four 4K displays.MacBook Air 2017 to 2020 and later: two Thunderbolt 3 ports two 4K displays.Apple allows Intel Macs with USB-C to support one, two, or four 4K monitors plus one additional or if there’s an HDMI port, as on the Mac mini, one via Thunderbolt 3 or USB-C and one via HDMI.

Thunderbolt to hdmi dual monitor