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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. 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

  8. 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

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