Quote Originally Posted by Stratmangler View Post
Are your devices connected by ethernet or WiFi?
If it's the latter then probably not.

Most everything else in your home has SMPS powering it, so unless you make steps to lessen the crap they all kick out onto the mains it's pretty pointless just changing out one of them.
The Raspberry Pi has a Paul Hynes hard wired onto the GPIO pins to avoid the usb input. I believe its about reducing noise going into the router by refining the 12 volt supply.