Devantech 8-Channel, 1A Optically Isolated USB Relay Module - RobotShop
Optically Isolated Usb To Rs485/422/232 Interface Industrial Grade Lightning Protection Usb To Serial Converter - Switch Caps - AliExpress
4 Port USB to Quad RS-422 485 Optically Isolated Adapter - Coolgear
USB to RS485 | RS422 Optically Isolated Industrial Serial Adapter
Fluke OC4USB USB Interface Cable | Fluke
USB to 32 Optically Isolated Inputs Module - Sealevel
USB to RS485 | RS422 Optically Isolated Industrial Serial Adapter
USB-OPTO-RLY816 - ROS Components
Optically Isolated USB to Serial Adapter by Emil Johnsen — Kickstarter
Amazon.com: Black Box USB to RS232 Opto-Isolated Converter : Electronics
USB to 4 Optically Isolated Inputs/4 Form C Relay Outputs Digital Interface Adapter - Sealevel
Optically Isolated Usb To Serial Port 5v3.3v2.5v1.8v Optically Isolated Usb To Ttl Serial Port Ch340 Uart - Integrated Circuits - AliExpress
USB 8 Opto-Isolated Digital Inputs Module - Denkovi A E LTD
USB to 32 Optically Isolated Inputs Digital Interface Adapter - Sealevel
Optically Isolated 7-Port USB Hub with SeaLATCH USB Ports - Sealevel
Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB : ID 2107 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
2-Port Industrial USB 2.0 to RS-422 / 485 Optical Isolated Adapter - Coolgear
SC-USB: Optically Isolated USB Interface
Amazon.com: High-Speed Isolation USB to TTL Serial Module Power Isolation Optocoupler Isolation 3.3V 5V TTL Output : Electronics
USB to Optical Adapter Industrial Isolated RS-232/422/485 - Coolgear
Optically Isolated USB-FTDI Interface (OPTOUSB) from Land Boards, LLC on Tindie
USB to RS485 Isolated adapter / converter
USB to 32 Optically Isolated Inputs Module - Sealevel
USB to RS485 Isolated adapter / converter
