USB CARE01: USB isolator, galvanic isolation host<>device at reichelt elektronik
Single Port Inline USB Isolator Cable, 4 kV Medical-Grade Isolation - Sealevel
Amazon.com: GeeekPi USB Isolator Module ADUM3160 USB Digital Isolation USB to USB Voltage Isolator Board Protection (5KV ESD MAX) with OC Protection : Electronics
USB to CAN Bus Adapter with Galvanic Isolation in Metal Case