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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. USB to Serial RS-422/RS-485 Industrial Single Port Adapter w/FTDI

    USB to Serial RS-422/RS-485 Industrial Single Port Adapter w/FTDI

    $59.99 As low as: $57.68

    The USB-COMi-TB USB-to-RS-422/485 Industrial Serial Adapter is designed to make industrial communication port expansion quick and simple. Connecting to a USB port on your computer or USB hub. Learn More
  2. USB to RS-485 Adapter W/Terminal Block Changer FTDI chip inside

    USB to RS-485 Adapter W/Terminal Block Changer FTDI chip inside

    2 Review(s) | Add Your Review

    $19.90 As low as: $18.71

    Out of stock

    Professional grade USB to RS485 Converter optimized for Windows 7/8/10 and Server 2003/2008. High-Speed and Interface compliance,USB1.1,2.0,3.0, EIA/TIA RS-485. Learn More
  3. Mini USB Serial Adapter Hi-Speed 920K FTDI Chip

    Mini USB Serial Adapter Hi-Speed 920K FTDI Chip

    15 Review(s) | Add Your Review

    $10.99 As low as: $10.33

    The Mini USB serial adapter Hi-Speed 460K FTDI Chip PC DB-9 RS232 is supported by Windows 10, and offers High-Speed and the convenience of a plug-and-play feature so your time isn't taken after it's connected. Perfect for use with modems, PDA's, GPS, Industrial Devices, cell phones, digital cameras and more. Learn More
  4. USB to RS232 Isolated TTL | CMOS Adapter Cable with TB

    USB to RS232 Isolated TTL | CMOS Adapter Cable with TB

    $43.95

    Up until now you've had to make a choice between USB to TTL adapters and their voltage with either or selections. This USB to RS232 isolated TTL/CMOS adapter cable eliminates that by allowing you to choose a voltage setting right at the adapter's connection point at the terminal block. Learn More
  5. USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable

    USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable

    13 Review(s) | Add Your Review

    $14.29

    USB to Serial RS-232 DB9 mini adapter with USB 2.0 extension cable is a FTDI based adapter that converts a USB port into a RS232 serial port capable of speeds up to 921,600 bps. It is designed to make serial port expansion easy with plug and play and built-in drivers for older Windows systems. It is installed as a standard Windows COM port. Learn More
  6. Industrial USB 2.0 to RS-232 Serial High-Speed Adapter w/ DIN-Rail Bracket

    Industrial USB 2.0 to RS-232 Serial High-Speed Adapter w/ DIN-Rail Bracket

    $36.29

    High speed serial adapter for single port RS232 communication via a USB 2.0 connection utilizing FTDI chipset. Designed with an industrial chassis the serial adapter can be mounted with Din rail brackets and supports LED status indicators for power, TxD, and RxD signals. Learn More
  7. 16in. USB 2.0 to RS-232 Serial Converter w/ LED Indicators & FTDI

    16in. USB 2.0 to RS-232 Serial Converter w/ LED Indicators & FTDI

    1 Review(s) | Add Your Review

    $24.07

    This 16 inch 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. Learn More
  8. USB-C 2.0 to Serial RS-232 16 Inch Adapter w/ LED Indicators

    USB-C 2.0 to Serial RS-232 16 Inch Adapter w/ LED Indicators

    1 Review(s) | Add Your Review

    $31.85

    This NEW 16 inch USB C to Serial RS232 adapter uses the new type-C USB connector technology for easy, reversible connections. The same great tool of choice when supporting serial peripherals in newer computers without serial support with a C port host. Supported by Windows 11, this is an ideal solution for serial device support. Learn More
  9. 6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset

    6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset

    1 Review(s) | Add Your Review

    $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
  10. USB to Serial RS232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support

    USB to Serial RS232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support

    37 Review(s) | Add Your Review

    $19.90

    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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Recent Reviews
  1. 3ft. Black USB 2.0 Hi-Speed A to A High Performance Extension Cable
    3ft. Black USB 2.0 Hi-Speed A to A High Performance Extension Cable
    5.0 out of 5 stars Perfect!.
    Just what I needed.
    (Review by John)
  2. 3ft. Black USB 2.0 Hi-Speed A to A High Performance Extension Cable
    3ft. Black USB 2.0 Hi-Speed A to A High Performance Extension Cable
    5.0 out of 5 stars works great.
    I love the extra length it gives me for my usb cord for my phone.
    (Review by Dotty)
  3. USB 3.2 Powered 4 Port Mini Hub with ESD & Surge Protection
    USB 3.2 Powered 4 Port Mini Hub with ESD & Surge Protection
    5.0 out of 5 stars very reliable.
    solid connection no noticeable input delay and provides ample power. i have stream deck, mouse
    (Review by Marty)
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