> Even my '18 MBP can't handle a 4k monitor at 60Hz I bet you were trying to use HDMI or an adapter? If so that's a known issue with the transport mechanism, n

> Even my '18 MBP can't handle a 4k monitor at 60Hz I bet you were trying to use HDMI or an adapter? If so that's a known issue with the transport mechanism, not the laptop. My '17 MBP can do two 4k external displays at 60Hz on top of the internal display using displayport, so yours can definitely do one. This is a good reference. Note that it's from 2016: https://9to5mac.com/2016/11/17/macbook-pro-external-display-requirements-4k-5k-adapters/ https://9to5mac.com/2016/11/17/macbook-pro-external-display-...