Filtering the 5V USB power supply line | Andys Workshop
USB 2.0 Cable Cord w/ Inline Noise Filter, Type A Male to Male [USBWIRE1] - $4.99 : Auber Instruments, Inc., Temperature control solutions for home and industry
Filtering the 5V USB power supply line | Andys Workshop
USB Power Filter | Hackaday.io
Amazon.com: WAudio AC Noise Power Filter - Line Conditioner Power Purifier Surge Protector with Universal Outlets : Electronics
Amazon.com: iFi iPurifier3 USB Audio and Data Signal Filter/Purifier (USB Male Type B, White) : Electronics
DIY bench power supply - how to filter out the noise? - General Electronics - Arduino Forum
JEDAC - yet another take on a DIY high-end USB Audio DAC
usb device - USB 2.0 VBUS Filter - Electrical Engineering Stack Exchange
USB isolators (filters) for audio: passive or active | diyAudio