If you need to add a panel-mount connection for USB Micro B, but don’t have the time or ability to cut a custom oval or square hole, this Round Panel Mount Extension…
Hi, I’ve ordered Skip to the beginning of the images gallery
Micro B Round Panel Mount Extension Cable - 30cm (ADA4217) and the only reference on the page about the mounting is “about 30mm in diameter”. I hunted around an found this product on another site with a couple of datasheets. I’m linking them here so maybe you can update the page. I believe the mounting hole size is important (I need to go buy a drill bit for it) and maybe it would be useful to know before purchasing the product.