Amazon.com: COMMFRONT Industrial USB Isolator, USB 2.0 5000Vrms Isolation (per UL 1577), Low and Full Speed Data Rate: 1.5Mbps and 12Mbps, Plug-n-Play, No Drivers Required : Electronics
USB Power Isolator Keeps Smoke In | Hackaday
Galvanic Isolator for USB 2 - can be used with the Ana Pot - zimmerandpeacock
Galvanic isolator - 33001 - Wiesemann & Theis - power / voltage / USB
TTL 2724: USB isolator, galvanic isolation host<>device at reichelt elektronik