While the dude in the YT video comes across as a very pretentious prick, he does IMO point out that this switch is a bunch of hooey. Seriously a glued on crystal makes it a "crystal oscillator"? That is hilarious. Folks couldn’t tell a difference in blind test listening either versus the D-Link the AQVOX is based on. Most everything in the AQVOX is just glued on. For ~800 Euro? Best to spend your money elsewhere where a difference could be made in your digital chain.
Snake oil of the year?
AQVOK Switch SE Audiophile High-End Network Switch Lan. I think we are going to have some fun with this one, let it rip here. https://www.youtube.com/watch?v=NMFQ3YvR3Eo
Here is the product page.