USB Graphics Adapters   USBC-6950-HDMI


About the USBC-6950-HDMI category (1)
Strangely 4K monitor will only run at 30hz (used to do 60hz) when another monitor is plugged into the PC's HDMI port (3)
USB device you connected is unrecognized (5)
Low framerates on applications using USBC-6950-HDMI adapter (3)