I needed a ground loop isolator ASAP, so I took some old ethernet magnetics and wired them up to some audio jacks. : r/diyaudio
USB Isolator USB HUB Isolator USB Isolator Board ADUM4160/ADUM3160
AUDIO GD USB Isolator for AMANERO - Audiophonics
Quad USB Isolator Module Signal Digital Safety Isolation Line Protector Module | eBay
Diymore Adum4160 Usb To Usb Isolator Module Audio Noise Eliminator Industrial Isolator Protection Board With Acrylic Case - Integrated Circuits - AliExpress
USB Isolators for Audio - My Hi-Fi Journey
Build a Simple Isolator for Externally Powered Arduinos | Nuts & Volts Magazine
DIY Ground Loop Isolator
USB isolators (filters) for audio: passive or active | diyAudio
USB Isolator kits in store « Circuits@Home
Amazon.com: USB2.0 Hub Isolation Board, Stable Transmission Durable USB Isolator Easy Installation 4 Channel for DIY : Electronics