i Fi Audios new & enhanced i Silencer+ is a must if you want to enjoy vivid open music. Electrical noise on USB (Universal Serial Bus) causes errors data loss & poor signal integrity. You will hear these as distortion – pops clicks & delays. The i Silencer+ solves all of this quickly & easily. It plugs directly into the USB (Universal Serial Bus) port of your computer as a link between your computer & your DAC removing electrical noise both EMI & RFI at the source. Your music will seem clearer warmer & more transparent with enhanced bass.