Is it possible to connect two 4k monitors to one thunderbolt port?

Solution 1:

What you want to do is possible, but not without either using an adapter, dock, or the right kind of displays. For example:

• you can use a display that allows you to daisy-chain to another display (i.e. you have a charger plugged into one of your ports, and you have one display connected to the other port and a second display connected to the first display)
• you purchase a dock such as the OWC's Thunderbolt 3 Dock.
• you purchase at least one display that will provide charging power to your MBP (e.g. the LG UltraFine 4K Display).

You may want to also read:

• About Thunderbolt ports and displays
• Connect with Thunderbolt 3 on your new MacBook Pro
• Use the LG UltraFine 4K Display with your Mac

NOTE: IMHO, if you're wanting to run two 4K displays you probably should invest in a MBP with four Thunderbolt ports, as this is likely to provide more flexibility in terms of usage and the variety of devices you can purchase to meet your needs.