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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. Dual Port DB-9 USB Serial Ultra MINI Adapter with Cable RS-232 X 2

    Supports Windows 10, 8, 7 and Vista (32 and 64-Bit), this USB 2-port Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub. Learn More
  2. USB to RS-422 Converter

    Regular Price: $32.95

    Special Price $9.89

    3ft gray USB to RS-422 serial converter adapter is designed for rugged application areas with its strong molded enclosure, can be configured for both RS-422 and RS-485 and are fully compliant with USB specifications 1.1 and 2.0 with transfer rates of up to 3Mbps. Learn More
  3. USB to RS-485 Converter Adapter Cable Black

    Regular Price: $32.95

    Special Price $9.89

    3ft black USB to RS-422 serial converter adapter is designed for rugged application areas with its strong molded enclosure, can be configured for both RS-422 and RS-485 and are fully compliant with USB specifications 1.1 and 2.0 with transfer rates of up to 3Mbps. Learn More
  4. USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above
    $21.95

    This 3 ft. USB to Serial adapter is a tool of choice when supporting serial peripherals in newer computers without serial support. Now supported by Windows 11, this is an ideal solution for device support.

    • LED activity monitoring
    • Full support of RS-232 signals
    • USB bus powered
    • 3ft. cable connection
    Learn More
  5. 36in. USB to RS-232 Serial DB9 Adapter w/ Prolific Chip (Pl-2303HX)

    3ft. DB-9 Serial Adapter High Speed USB SERIAL RS-232 Learn More
  6. 36 inch DB-9 Serial Adapter High Speed USB SERIAL RS-232 With FTDI Chipset

    Regular Price: $19.79

    Special Price $14.99

    Supports Windows 7 and 8 and Vista (32 and 64-Bit) with Microsoft Certified Drivers. This FTDI CHIP Adapter is with RX/TX and Power LED and supports OS X and VISTA! Want to connect your GPs, modem, or digital camera easily? Learn More
  7. USB to RS-422 Terminal Block Adapter

    Regular Price: $38.49

    Special Price $11.55

    Designed for Point of Sale type devices this RS422 serial adapter is configured via 5-wire terminal block for serial signal. Learn More
  8. USB to UART with +3.3V TTL Adapter

    Regular Price: $27.49

    Special Price $8.25

    USB to UART with +3.3V TTL Adapter Learn More
  9. USB to Parallel & Serial Converter  for Windows Xp 2000 and Vista

    Regular Price: $14.04

    Special Price $4.21

    USB to Parallel & Serial Converter needs no additional IRQ, DMA, or I/O address resources and supports serial applications for high-speed transfers up to 230400 bps. Works with Windows Xp, 2000, and Vista. Learn More
  10. 6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset
    $21.04

    RS-232 | 512 Bytes Receive | 512 Bytes Transmit | FTDI

    • Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no serial port connections.
    • Safe Connections: Designed with a unique system load reduction feature, the Mini USB to Serial Adapter also offers 15kV ESD protection for connected devices.
    • Plug-&-Play: The adapter’s power is drawn from a USB connection for ease of access and is compatible with Windows (up to Win 11), Mac OS, and Linux.
    • COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
    • Upstream: 1 USB port, Type A Male Connector
    • Downstream: 1 Male DB9, w/ nuts
    • LEDs: Power, TX / RX
    Learn More

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