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USB to Serial

USB to Serial Adapters supporting RS232, RS422, and RS485 signals from a USB serial interface, lower OS also supported. USBGear offers the USB to serial interface adapters in single or multiple ports and various configurations including cable length, RS232 TTL (terminal block), and style.

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  1. 4-port USB to RS232 Adapter FTDI FT4232H & ZyWyn
    $76.95

    The CG-4X232FTDI is a 4 Port RS232 to USB 2.0 serial adapter cable that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB). Learn More
  2. 4 port RS232 to USB FTDI chip adapter w/ RX and TX Status LED
    $65.95

    4 Port USB To Serial Adapter with Rx / TX Indicators easily adds 4 standard serial ports to your desktop, laptop or other mobile device and fully supports Windows 11.

    • RXD, TXD Status LED Array
    • Easy Plug and Play installation
    • USB interface: standard Type A female
    • Baud rates up to 921.600bps
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  3. USB Type-C 4-Port Serial Adapter

    4 Port USB-C to Serial adapter with RX/TX LED Indicators easily adds 4 standard serial ports to your desktop, laptop or other mobile device and fully supports Windows 11.

    • RXD, TXD Status LED Array
    • Easy Plug and Play installation
    • USB interface: standard Type-C female
    • Baud rates up to 921.600bps
    Learn More
  4. 4-Port USB to RS-232 w/ Optical-isolation, Surge Protection, Metal Case

    Optical isolation and surge protection are available on serial port and is individually optically isolated with 2000 volt DC optical isolation on 8 signal pins, GND is isolated by 5V DC-to-DC converter. The optical isolation protects your computer from spikes and surges. Learn More
  5. USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter

    4 optically isolated and surge protected terminal block ports, the USB2-4COMi-TB USB to quad port industrial serial adapter is designed to make RS-422 and RS-485 serial port expansion quick and easy. Learn More
  6. USB 2.0 to 4-Port RS232-422-485 Serial TB Adapter Isolation | Surge
    $239.95

    4 optically isolated and surge protected terminal block ports, The USB2-4COMi-SI-TB is a USB 2 to 4-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD. Learn More
  7. Industrial USB 4 Port Serial RS-232 adapter w/FTDI Chipset, COM Retention, RX/TX LED Indicators, DIN Rail Mount Bracket, & Surface Mounting Brackets
    $82.49

    Gearmo USB 4 Port Serial RS232 featuring FTDI Chipset with LED Indicators Industrial Version

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