Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB : ID 2107 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Black Box USB to RS232 Opto-Isolated Converter : Electronics
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Industrial USB-A 5KV Optical Isolation Adapter Din Rail - Shentek
Industrial adapter USB 2.0 to RS232 RS422 RS485 opto-isolated 8 ports - Cablematic
USB to RS485 Isolated adapter / converter
2-Port Industrial USB 2.0 to RS-422 / 485 Optical Isolated Adapter - Coolgear
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 Isolator for Protection of all types of USB devices
RS232 RS485 RS422 TTL USB Serial Fiber Optic Converters / Ethernet Data Converters
Optically Isolated 7-Port USB Hub - Sealevel
USB-ISOLATOR - Single Port USB Isolator - ACCES I/O Products
4 Port RS-232 USB to Serial Adapter w/ Optical Isolation & Surge Protection - Coolgear
USB 8 Opto-Isolated Digital Inputs Module - Denkovi A E LTD
USB to Serial Adapter Cable w/ Isolation - Serial Cards & Adapters | StarTech.com
Optically Isolated 7-Port USB Hub - Sealevel
Hifimediy USB Isolators - Made for audio to prevent ground loops
Amazon.com: Black Box USB to RS232 Opto-Isolated Converter : Electronics
Adapter Isolated USB To UART TTL, USB To Serial Port TTL 5V3.3V2.5V1.8V Optically Isolated Magnetic Isolation _ - AliExpress Mobile
Opto-Isolated RS232/RS485/RS422(4-Wire) 4-Port Hub / Splitter (Industr – CommFront
USB Isolator (Industrial) – CommFront
Optically Isolated 7-Port USB Hub - Sealevel
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