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USB-C Dock which supports 4k 60fps for external display


New Member
Hi there
I have a Surface Book 2 and a HP Notebook. Both Notebooks should connect to a 4K display with 60fps.
I bought an i-Tec USB-C Dock but when connected to the SB2 I have only 30fps on the display. With the HP Notebook every works fine (same i-Tec Dock, same cables and so on).
Any ideas on what that could be? Any suggestions which Dock I should by that supports at least one 4k with 60fps display?
Thanks in advance.