You can build your own isolated USB Cable - EngineerZone Spotlight - EZ Blogs - EngineerZone
Industrial adapter USB 2.0 to RS232 RS422 RS485 opto-isolated 8 ports - Cablematic
Industrial adapter USB 2.0 to RS232 RS422 RS485 opto-isolated 4 ports - Cablematic
4 Port USB 3.1 Gen1 Isolated Hub with 15KV ESD Surge Protection
Opto-Isolated USB to RS232 / RS485 / RS422 Converter (Industrial / Por – CommFront
Black Box USB TO RS232 OPTO-ISOLATED CONVERTER (SP385A-R3)
Digital Isolators Offer Easy to Use Isolated USB Option | Analog Devices
Black Box Opto-Isolator - serial adapter - USB - RS-422/485 - TAA Compliant
Industrial USB-A 5KV Optical Isolation Adapter Din Rail - Shentek
Optically Isolated 7-Port USB Hub with SeaLATCH USB Ports - Sealevel
AZSMZ opto isolated USB MIDI Converter from AZSMZ on Tindie
OPTO•USB Optical Isolation for USB DACs – AudioWise
Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB : ID 2107 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
SC-USB: Optically Isolated USB Interface
USB Optically Isolated, industrial 4 Port Hub DIRECT
OPTO•USB Optical Isolation for USB DACs – AudioWise
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 2.0 4-Port Isolated Hub - Coolgear
USB-ISOLATOR - Single Port USB Isolator - ACCES I/O Products
ICI202A, Isolated USB Hub - Industrial-Grade - Black Box
USB to TTL serial opto-isolated converter - CH340
USB to TTL serial opto-isolated converter - CH340
ADUM3160 USB to USB Isolator Board Protection Isolation Board – Star International
USB to RS232 Opto-Isolated Converter | Black Box
Optically Isolated USB to Serial Adapter by Emil Johnsen — Kickstarter
Hifimediy USB Isolators - Made for audio to prevent ground loops
