StarTech.com

1 Port USB to RS232 DB9 Serial Adapter with Detachable 6ft USB A to B Cable

Add an RS232 serial port to your laptop or desktop computer through a detachable USB cable

Product ID: ICUSB232D

  • Provides USB to straight-through RS232 serial connectivity
  • Detachable USB cable design (6ft / 1.8m USB A-B cable included)
  • Supports baud rates up to 128Kbps
View More
  • Compatible with Windows, Mac OS and Linux platforms
  • Compatible with USB 1.1 or higher ports
  • USB-powered - no external power adapter required
$23.99 CDN
213+ In stock
In stock
CA: 41 | US: 172
213+
In stock
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Overview

The ICUSB232D 1 Port USB to Serial Adapter lets you add an RS232 DB9 serial port to your laptop or desktop computer through USB, so you can connect to, monitor and control a serial device. For easy connections, the adapter features a female USB type-B port, so you can choose the length of USB cable needed to reach your serial device (6ft / 1.8m USB A-B cable included).

The USB to RS232 adapter is a convenient and cost-saving solution for providing legacy serial connectivity to devices such as point-of-sale terminals, serial modems, industrial equipment and a wide variety of other RS232 peripherals.

The USB to serial converter is easy to install and offers broad operating system compatibility including Windows®, Mac OS® and Linux for easy integration into mixed environments, and offers support for transfer rates up to 128 Kbps.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

The StarTech.com Advantage

  • Choose the cable length needed to reach your device, with the detachable USB cable design
  • Install on almost any laptop or desktop system, through broad operating system compatibility including Windows, Mac OS and Linux
  • Portable and lightweight, the USB-powered design requires no additional power adapter

Applications

Add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port

Connect bar code scanners, receipt printers and other point of sale devices

Connect, monitor and control industrial/automotive sensors and other sensitive equipment

Connect and program LED and digital signage boards

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Bus Type USB 2.0
Chipset ID Prolific - PL2303TA
Industry Standards USB 2.0/1.1
RS232
Interface Serial
Port Style Cable Adapters
Ports 1
Performance
Data Bits 5, 6, 7, 8
FIFO 512 Bytes
Flow Control None, Xon/Xoff, RTS/CTS, DCD/DTR/DSR
Max Baud Rate 128 Kbps
Parity None, Odd, Even, Mark, Space
Serial Protocol RS-232
Stop Bits 1, 1.5, 2
Connector(s)
Connector Type(s) 1 - USB B (4 pin) Female
1 - DB-9 (9 pin, D-Sub) Male
Software
OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016
Mac OS® 10.6 to 10.13
Linux 3.5.x to 4.11.x LTS Versions only
Special Notes / Requirements
System and Cable Requirements Available USB 1.1 (or above) port
Power
Power Source USB-Powered
Environmental
Humidity 5~95% RH (Non-Condensing)
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -10°C to 80°C (14°F to 176°F)
Physical Characteristics
Cable Length 6 ft [1.8 m]
Color Black
Enclosure Type Plastic
Product Height 0.9 in [22 mm]
Product Length 2.3 in [59 mm]
Product Weight 1.2 oz [35 g]
Product Width 1.3 in [32 mm]
Packaging Information
Shipping (Package) Weight 7 oz [198 g]
What's in the Box
Included in Package 1 - USB to RS232 Adapter
1 - 6ft USB Cable - A to B
1 - Driver CD
1 - Instruction Manual

Compatibility

View full OS compatibility
Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016
Mac OS® 10.6 to 10.13
Linux 3.5.x to 4.11.x LTS Versions only

Certifications

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Accessories

Product Support

Frequently Asked Questions

Installation

Some driver installation packages may require you to disable driver signature enforcement in Windows 8, which will allow unsigned driver packages to be installed on your system.

Note: Before you continue, save any open documents and close all open programs.

To disable driver signature enforcement, complete the following:

  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 finishes restarting, complete the following:

  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 your drivers.

Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.

Some driver installation packages may require you to disable driver signature enforcement in Windows 8.1, which will allow unsigned driver packages to be installed on your system.

Note: Before you continue, save any open documents and close all open programs.

To disable driver signature enforcement, complete the following:

  1. Press the Windows key + C.
  2. Click Settings > Change PC Settings.
  3. In the left pane, click Update & Recovery.
  4. In the left pane, click Recovery.
  5. Under Advanced startup, click Restart now.

When your system finishes restarting, complete the following:

  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 your drivers.

Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.­­­­­­­

You may need to disable Driver Signature Enforcement in Windows 10 to use some driver installation packages. When you disable this feature, you can install unsigned driver packages on your computer.

Note: Before you continue, save any open documents and close all of your programs. You will need to restart your computer to disable Driver Signature Enforcement.

To disable Driver Signature Enforcement, complete the following:

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

After your computer finishes restarting, complete the following:

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

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

Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.­­­­­­­

How to

To confirm that Windows detects your USB device, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

To confirm that the Mac OS detects your USB device, complete the following:

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your USB device is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

You may need to refresh the System Information page after you plug in your device.  To do so, press Command R with the System Information page open.

Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Troubleshooting

If the USB device does not work after your computer has been in extended hibernation, it is likely that Windows has automatically turned off the USB Root hub to save power. 

The steps below outline how to configure the USB root hub to stay on during hibernation, to prevent this from happening.
 

Windows 10 / 8

  1. On your keyboard, press the Windows key + X and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows 7 / Vista

  1. Click the Start button and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows XP

  1. On your desktop, right-click the My Computer icon and select Properties.
  2. Click the Device Manager tab.
  3. Expand Universal Serial Bus controllers by clicking the arrow to the left of it.
  4. Right-click the first USB Root Hub device and select Properties.
  5. Click the Power Management tab.
  6. Clear the box next to Allow the computer to turn off this device to save power.
  7. Click OK to apply the setting.
  8. Repeat steps 4-7 for any remaining devices in the Universal Serial Bus Controllers section with “Root Hub” in the name.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

1 Port USB to RS232 DB9 Serial Adapter with Detachable 6ft USB A to B Cable

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