generate enough power for the chipset, so the external power supply
from USB is required.
4. If all links are correct, what should I do if there is no signal or image?
a) On your computer, please go to【Display】or【Monitor】and see
whether the monitor could be detected.
b) If no, please check and set the monitor to HDMI input mode manually.
c) If yes, please set an appropriate resolution and refresh rate
5. If no audio and the OS is Windows, what should I do?
Attention: Only Windows OS support sound output.
a) Select the USB audio on the playback tab of the sound menu in
Windows
b) Connect the USB cable to the USB port of the source computer. The
audio signal is embedded with HDMI video
c) Select the input audio from HDMI Display menu
6. Could the cable reach 4K?
Unfortunately, the cable could be up to 1920 x 1080 @ 60Hz (1080p Full
HD), but couldn't be reach 4k. As the VGA is an analog digital signal
output, not a high-definition interface.