Hifimediy USB Isolators - Made for audio to prevent ground loops
Fluke OC4USB USB Interface Cable | Fluke
4 Port RS-232 USB to Serial Adapter w/ Optical Isolation & Surge Protection - Coolgear
Opto-Isolated RS232/RS485/RS422(4-Wire) 4-Port Hub / Splitter (Industr – CommFront
Optically Isolated 7-Port USB Hub with SeaLATCH USB Ports - Sealevel
USB Optically Isolated, industrial 4 Port Hub DIRECT
USB TO RS232 ADAPTERS W/OPTICAL ISOLATION (FULL SPEED) — Connective Peripherals - Global Store
Ruggedized Single Port Inline USB Isolator Cable - Sealevel
Amazon.com: StarTech.com USB to Serial Adapter - Optical Isolation - USB Powered - FTDI USB to Serial Adapter - USB to RS232 Adapter Cable (ICUSB2321FIS),Black : Electronics
Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB : ID 2107 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Optically Isolated 7-Port USB Hub - Sealevel
Optically Isolated 7-Port USB Hub - Sealevel
Single Port USB 2.0 to RS-422 / RS-485 DB-9 Serial Adapter w/ Surge Protection & Optical Isolation - Coolgear
Amazon.com: Optical Cables by Corning Thunderbolt 3 USB Type-C Male Optical Cable, 5m : Electronics
SP385A-R3, USB to RS232 Opto-Isolated Converter - Black Box
USB to Serial Adapter Cable w/ Isolation - Serial Cards & Adapters | StarTech.com
USB-ISOLATOR - Single Port USB Isolator - ACCES I/O Products
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-to-Optical isolated RS-422/485 Industrial Adapter
B&B Electronics USB Optically Isolated Four 4-Port Hub w/ Power Supply UISOHUB4 | eBay
Optically Isolated 7-Port USB Hub with SeaLATCH USB Ports - Sealevel
Industrial USB-A 5KV Optical Isolation Adapter Din Rail - Shentek
Optically Isolated 7-Port USB Hub with SeaLATCH USB Ports - Sealevel
USB to RS485 Isolated adapter / converter
