iFi has released the Audio Lan Silencer, a device for galvanically separating and shielding your network-connected device from noise.
According to the manufacturer, the iFi Audio LAN iSilencer should provide more transparency and dynamics, as well as a clearer high. And all this together should make music sound more lively and open. You simply plug the filter between router, network switch or Ethernet connection in the wall, to which you then connect, for example, a streamer. The filter removes annoying electrical interference from the transmitted signal. Internally, the dongle consists of a shielded plug and Ethernet connection, with integrated ground connections. By the way, this device – unlike more esoteric solutions – will not cost you an arm and a leg, looking at its price tag of €89.