Hifimediy USB Isolators - Made for audio to prevent ground loops
Amazon.com: USB Data Blocker, USB Power Blocker Audio Noise Filter Ground Loop Isolator Wide Compatibility Accessory, Refuse Hacking Provide Safe Charging : Electronics
USB Isolators/Ground Loop Eliminators for Software Defined Radio Applications
USB Isolator
USB isolator prevents ground-loop problems | Elektor Magazine
TOPPING HS01 USB Isolator
Amazon.com: iFi iDefender+ USB Audio Ground Loop Eliminator (Type C > A) : Electronics