For those with a Kingston HyperX Alloy Core RGB Membrane Gaming Keyboard

invalid@example.com (King Mustard), King Mustard
Sat, 03 Oct 2020 18:52:43 +0000
Keyboards

Have you noticed that, when the backlight is on (either of the two brightnesses), there is a high-pitch whine/hum? (when the room is very quiet)

I am 34 and can hear it.

As soon as I turn the backlight off, the sound disappears.

Very annoying.