How many monitors can the Thunderbolt 3 dock support?
You can connect two 4K Ultra HD displays, so it’s perfect for anyone working with high-bandwidth or graphics-intensive content. The Thunderbolt 3 dock supports two 4K (3840 x 2160p or 4096 x 2160p) monitors through the DisplayPort and Thunderbolt 3 USB-C port (USB-C video adapter might be required).
Can you daisy chain Thunderbolt 3 monitors?
4K Daisy Chain: LG Thunderbolt 3 monitors support a 4K daisy chain setup, which means that you can use a single cable to not only connect to your display and transfer data, but charge your MacBook simultaneously.
How many 4K monitors can be connected to a Thunderbolt 3.0 port?
Note: The Thunderbolt 3 ports on your iMac Pro are managed by two controllers, one for the two left ports, the other for the two right ports. Each controller can support two 4K displays or one 5K display. So you can connect up to four 4K displays or two 5K displays to your iMac Pro.