I just went through this. I concluded to put the generic netgear switch near the router and then put the Etherregen at the streamer with a short quality cable into the streamer.
Then I realized I could move my Roon Core over to the audio stand and elimate the negeear switch all togehter. So I have an 8 meter AQ silver plated cable supplying my Etherrregen and then all my accessories hooked to it.
Addressing Erik’s comment. Etherregen comes with a switching power supply but they claim that their onboad power managment system is all that is necessary. I bought the Nutone audio linear power supply, could hear no difference, and sold it. I didn’t sell it because I could hear no difference. Small improvments are sometimes not audible in a listening session. It was not expensive, and I would have kept it. I sold it because I was sure the difference was small and it runs too hot for my taste. I"m looking casually for an LPS for it, 7 to 12 volts that runs cooler. I just bought Farad power supplies for my DAC and they are nice but pricey. They DID make a difference on the DAC.
Jerry