Uperfect external monitor with coil whine

If you have problem with uperfect monitor and you are using with MacBook then this is for you.

The coil whine is present when the display is powered only from MacBook.

Uperfect monitors support power pass through which actually removes the coil whine.

So plug MacBook power source into the monitor and connect monitor to the MacBook. This way the mac gets all the power and the monitor won't whine.