Question External volume control with USB pass through

[dreamerman]

I have been searching for a volume control for laptop/desktop with USB pass through for the keyboard. Just a simple volume control like those volume knobs on certain keyboards. For pass through, I mean attaching a USB keyboard to the volume controller. I looked at Amazon and Aliexpress but all those volume controllers with USB port are for flash drives. Appreciate letting me know if you have seen any.

 

[Ralston18]

More information needed.

Keyboards are not audio devices.

What make and model keyboard? Link?

My keyboard (Logitech K540) has buttons to increase, decrease, and mute audio.

However, your requirement is a knob control to do the same - correct?