12in. USB 2.0 to RS-232 DB-9 High Speed Serial Adapter w/ Surge Protection & FTDI Chipset

RS-232 | 128 Bytes Receive | 256 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 surge 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

$21.95

(1 customer review)

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1 - 4 $21.95
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12 - 24 $20.85
25 - 49 $20.41
50+ $19.76

Also available from:

Model No. USBG-RS232-F12

Description

Introduction:

The CG-RS232-F12 USB DB-9 Serial High-Speed Adapter is perfect for Laptop, Desktop, and Mobile Computer users that require an RS-232 converter for serial connection without the extra cable length. This USB DB-9 Serial RS-232 converter cable features RX/TX and Power LEDs that utilize the FTDI Chipset. Want to connect your GPS to your PC but don’t have a 9-pin serial port connection? This cable will do what you need! Using this converter cable and the host USB PC interface for your application, you can transfer your travel information between Map Source and your GPS.

 

Connect any serial device to a USB port with this HP USB to Serial DB9 Adapter. It features USB Type A to 9-pin serial adapter! This USB to RS-232 converter Serial Cable provides you the simplest way to attach your Notebook or Desktop computer to a serial modem, mouse or PDA cradle. It features Plug and Play capabilities for your peripherals such as: PDA Cradles, modems, mice, card readers, barcode readers, label writers, digital cameras, security systems, fingerprint verification and more.

 

Features:

  • 12 inch USB Cable length
  • Adds one RS-232 serial port by connecting to a USB port
  • Compact size cable type converter with cable length of 25 cm
  • Installed as standard Windows COM port
  • Full RS-232 modem control signals and hardware/software flow control
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • High speed serial port with the baud rate up to 921.6K bps
  • Non-standard baudrates supported
  • LED status indicators for TxD and RxD for easy port monitoring and diagnostic
  • Serial port protected with surge protection of 10KV
  • Powered by USB port, no external power adapter required
  • Easy plug and play installation and RS-232 device connection
  • COM port number assigned can be changed to any COM port number required
  • Works with USB 1.1 & 2.0 host port
  • Supported by Windows 11
OS Support:
  • Windows XP, 2003, CE, Vista, Windows 7, and Windows 8, 10, 11
  • Linux and Mac OS 10.X

Package Contents:

  • 12 Inch USB DB-9 Serial High Speed FTDI Adapter
  • Driver Disc
Specifications

Product Specifications

Compliance
Country of Origin

Taiwan

Compliance

RoHS

Mechanical
Color

Smoke

Item Dimensions (L × W × H)

3.20 × 1.68 × 0.94 in.

Item Weight

0.094 lbs.

Length

1ft

Ports

1 Serial Port

Material of Construction

Plastic

USB
USB Type

USB 2.0

Isolated/Surge Protected

Yes

Serial Attributes
RS Signals

TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND

Serial Standards

RS232

Baud Rate

921.6K bps

FIFO Receive

128 bytes

FIFO Transmit

256 bytes

Data Bits

7, 8

Parity

None, Even, Odd, Mark, Space

Stop Bits

1, 2

Flow Control

Hardware (RTS, CTS), XON/XOFF

Software
OS Support

Win 11, Linux, Mac OSX, Win 10, Win 7, Win 8

Product Information
Warranty

1 year from date of purchase

Hardware
Chipset

FTDI

LED Indicators

Power, TX / RX

Performance
Isolated/Surge Protected

Yes

Other Data
Connector

DB9 Male w/ Nuts

Chip Model

FT232BL

Weight

.25 lbs

Dimensions

7 × 4 × 1.5 in

UPC: 729440691318
Reviews (1)

1 review for 12in. USB 2.0 to RS-232 DB-9 High Speed Serial Adapter w/ Surge Protection & FTDI Chipset

  1. MN Tech Support

    I am using this as a reverse telnet cable from a router to a console port.
    Driver install was easy. The status lights of power, RxD, and TxD are great for identifying device issues.

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Product Documentation & Drivers


Need drawings, CAD files, or other compliance documentation? Click HERE

Serial F.A.Q.

Product F.A.Q.

View frequently asked product questions below. For all serial troubleshooting, visit this page.
Still need help? Reach out!

  • How do I clean and reinstall my FTDI drivers?
      1. Download the CDM Uninstaller HERE.
      2. Extract the zip file, or open the “CDMuninstallerGUI.exe” utility.
      3. Leave the ‘Vendor ID’ set to 0403 and ‘Product ID’ set to 6001.
      4. Click Add.
      5. Click Remove Devices.
      6. Download the corresponding driver for your operating system and follow on-screen prompts. Windows Driver | MacOS Driver

    Video tutorial here.

  • How can I change my device’s COM port?
      1. Click on Start and navigate to the Control Panel
      2. Locate and click on Device Manager
      3. Under “Ports (COM & LPT)” you will find your serial device titled “USB Serial Port” along with its current COM Port.
      4. Right click on “USB Serial Port” and click on Properties.
      5. Navigate to the “Port Settings” tab and click on “Advanced…”
      6. Once there, the “COM Port Number:” can be changed with a dropdown menu to select the port number.
      7. Click your desired port number (i.e. COM2) and click “OK”.
      8. Click “OK” once more.
      9. Your serial device is now assigned to your chosen COM Port.

     

  • How do I check to ensure the COM port is listed properly in Windows?
    To ensure your serial device is installed properly, complete the following:

    1. Press Windows Key + R to open the Device Manager. Once Run comes up, type “devmgmt.msc” into the text field and press Enter.
    2. Expand the section labeled, Ports (COM & LPT).
    3. You should now see a COM number in brackets to the right of each port. If the device is installed properly, no exclamation points or question marks should be present next to the device.
  • I have everything hooked up, but nothing is functioning correctly.
    To rule out potential issues, quickly test your individual components to ensure that they are working correctly individually, and are not the source of the problem:

    • Serial cables
    • Serial ports
    • Serial devices

    Test your components by:

    • Hook up the serial cable(s), serial port(s), and serial device(s) in a different setup to see if the issue stems from a particular component, or the setup as a whole.
    • Replace the serial cable, port, or device within your setup to further troubleshoot the issue’s origin.

    When testing cables:

    • Test each cable individually.
    • Use short cables when you are testing.

    When testing serial ports and devices:

    • Press the Windows key + R, in Run, type devmgmt.msc, and press Enter to open the Device Manager. You can then check to see if your device is listed under Ports (COM & LPT).
    • Ensure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number.
    • If the device is listed with an error, follow the instructions on the website to reinstall the drivers.
  • Serial communication is not functioning correctly, how can I tell if the problem caused by the adapter or my serial software application?
    Older serial communication applications make use of legacy hardware addresses, often incompatible with PCI, PCIe, and USB to Serial products. Contact the software provider to troubleshoot.
  • I am receiving an error when I try to install the drivers in Windows 8 64 bit.
    Driver Signature Enforcement in Windows 8 may need to be disabled in order to use various drivers. After disabling this feature, the driver will be allowed to install.

    Note: You are required to restart your computer after disabling the Driver Signature Enforcement. Save all open work on your computer.

    Disable driver signature enforcement:

    1. Press the Windows key + C.
    2. Click Settings > Change PC Settings.
    3. In the left pane, click General.
    4. In the right pane, under Advanced startup, click Restart now.

    When your system restarts:

    1. Click Troubleshoot > Advanced options > Startup Settings > Restart.
    2. Press 7.

    When your computer restarts, Driver Signature Enforcement will be disabled and you can install the drivers.

  • I am receiving an error when I try to install the drivers in Windows 10 64 bit.
    Driver Signature Enforcement in Windows 10 may need to be disabled in order to use various drivers. After disabling this feature, the driver will be allowed to install.

    Note: You are required to restart your computer after disabling the Driver Signature Enforcement. Save all open work on your computer.

    Disable Driver Signature Enforcement:

    1. Click the Windows icon in the taskbar.
    2. Click Power.
    3. Press and hold the Shift key and click Restart.

    After your computer restarts:

    1. Click Troubleshoot Advanced Options Startup Settings Restart.
    2. Press 7.

    When your computer restarts, Driver Signature Enforcement will be disabled and you can install the drivers.

  • Why did the software not install properly in macOS High Sierra (10.13) or later?
    High Sierra 10.13 and later versions of macOS enforce strict security policy revisions. In order for the device to operate, software packages like those used in this installation must be allowed in macOS Security and Privacy settings once the software is installed.

    Once the driver/software is installed, follow these steps to allow the software:

    1. Open System Preferences.
    2. Open Security & Privacy.
    3. Click the Allow button near the bottom of the General tab.
Pin-Outs

DB9 RS-232 Pin-Outs

DB9 RS-232 Pin-Out Diagram
DB9 RS-232 Pin-Out Chart

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