STK2mv64CC have one microusb 3.1 port for power suply, but this port also have 2 usb 3.0 port on power adapther. I have 4k monitor, but for hdmi 1.4b is 4k 30hz is maximum. My question is have microusb port display port support. if it is, which hub is best for 4k 60 hz.
Let me be clear: THIS IS NOT A USB 3.1 PORT! It appears to be one, because it uses the same micro-USB connector, but it is NOT! It is a custom port specifically for the power brick with USB 3.0 hub.
Correct. Your ICS has only HDMI 1.4a output, which means that 4K@60Hz is not possible (there is simply not enough bandwidth). The best you are going to be able to do is 4K@30Hz.