piXL PX27UDH4K 27 Inch Frameless IPS Monitor, 4K, LED Widescreen, 5ms Response Time, 60Hz Refresh, HDMI, Display Port, 2x USB-A+, USB-B+, USB-C 16.7 Million Colour Support, VESA Mount, Black Finish – PC
Dell UltraSharp 27 Inch 4K USB-C Hub Monitor (U2723QE) : Computer Monitors | Dell UK
HP's new '4K Envy' monitor comes with USB-C - FlatpanelsHD