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  1. USB 2.0 to RS232 Serial Port DB9 9 Pin Male Converter Adapter - UK Seller

    Support RS232 serial interface (both DB25 and DB9). The USB to Serial/Parallel Adapter provides the connection between USB and the traditional RS-232 serial port. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC.

    eBay

  2. FT232RNL USB TO RS232/485/422/TTL Interface Converter Industrial Isolation new

    Supports multiple communication interface conversion, USB to RS232, USB to RS485, USB to RS422, USB to TTL. High quality USB-B and RS232 connectors, smoothly plug/pull. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.

    eBay

  3. FT232RNL USB TO RS232/485/422/TTL Interface Converter For Mac/Windows 11/10/8.1

    Supports multiple communication interface conversion, USB to RS232, USB to RS485, USB to RS422, USB to TTL. High quality USB-B and RS232 connectors, smoothly plug/pull. RS232 Connector: DB9 male. RS232 Protection: TVS diode, surge protection & ESD protection.

    eBay

  4. FT232RNL USB TO RS232/485/422/TTL Interface Converter Industrial Isolation

    Supports multiple communication interface conversion, USB to RS232, USB to RS485, USB to RS422, USB to TTL. High quality USB-B and RS232 connectors, smoothly plug/pull. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.

    eBay

  5. USB 2.0 to RS232 Serial Port DB9 9 Pin Male Converter Adapter Win7/8/2000/XP Mac

    Plug Type: USB 2.0 to 9 Pin Male RS232. Interface: RS232. It allows you to use bridge or connectivity between the USB and serial port interface. Colour: Blue. Happy Buying.

    eBay

  6. Tripp Lite USA-19HS Keyspan USB to Serial Adapter - USB-A Male to DB9 RS232 M...

    Tripp Lite USA-19HS Keyspan USB to Serial Adapter - USB-A Male to DB9 RS232 Male 3 ft. (0.91 m) TAA. Tripp Lite USA-19HS Keyspan USB to Serial Adapter - USB-A Male to DB9 RS232 Male 3 ft. (0.91 m) TAA USB Serial RS-232 USB A DB9 Black Taiwan.

    eBay

  7. FT232RNL USB to RS232/RS485/RS422/TTL Interface Converter Industrial Isolation

    Supports multiple communication interface conversion, USB to RS232, USB to RS485, USB to RS422, USB to TTL. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.

    eBay

  8. New FT232RNL USB TO RS232/485/422/TTL Interface Converter Industrial Isolation

    Supports multiple communication interface conversion, USB to RS232, USB to RS485, USB to RS422, USB to TTL. High quality USB-B and RS232 connectors, smoothly plug/pull. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.

    eBay

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