Also saw this about the NPS- 1260 and usb and spdif ect.
It has been tested to work well on power cords, and fuses (apply with care) as well as circuit breaker connection and the wires connected to these devices, receptacles are an obvious choice. Obvious uses are on RCA’s, XLR’s, speaker cables, speaker jumper plates, thin applications on USB and HDMI AES3 and SPDIF have been “transformative” successful in our testing.
It can be used on coaxial cable wires connecting your Wi-Fi system or ethernet cables removing the excess from the plastic connecter itself completely so that it is clean afterward.
Can be used on antenna connection of routers, digital cables of all electrical types. Patch cables, quarter-inch cables 1/8 in cables headphone connections of all types, mini-XLR, and others have been successfully treated.