AX4 (RAX35) router producing constant, high-pitched frequency out of the box

Hi all,

I got this router within the last week, updated the firmware, all the normal setup.  While the speeds are a significant improvement over my AC router, the router produces a constant, high frequency noise.

The router is still under the return period, but sadly the store I purchased from does not have any others for me to make an exchange to see if the problem persists.  And I got the item on sale, so I'd prefer to not have to return it, just to have to pay more for the same item elsewhere.

So I'm reaching out to see if anyone else has experienced the same issues, if the noise is to be expected (if I am able to RMA the current unit, will that one have the noise as well), and in general, how you all think I should proceed.

Thanks in advance!

J