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Com21 DP1110XB USB Cable Modem Driver

Download for Windows — free, fast, always up-to-date

Network Com21 Windows 10, 8.1, 7, Vista, XP
This driver download is available for Windows PCs.
At a Glance
DeviceCom21 DP1110XB USB Cable Modem
VendorCom21
Supported OSWindows 10, 8.1, 7, Vista, XP
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On This Page

The Com21 DP1110XB USB Cable Modem driver enables Windows to recognize the modem’s USB connection and communicate with it as a network device. It is intended for users setting up this Com21 modem, reinstalling Windows, or troubleshooting a missing or unrecognized modem connection.

Before starting your Com21 DP1110XB USB Cable Modem driver download for Windows, check the package’s compatibility notes. Listed operating systems include Windows 10, 8.1, 7, Vista, and XP, but support depends on the individual driver package and your system architecture. For Windows 10/11 systems, do not assume a legacy driver supports both versions; Windows 11 compatibility is not confirmed here.

Key Features

  • USB modem recognition: Provides the software interface Windows needs to identify and communicate with the Com21 DP1110XB over USB.
  • Network connectivity support: Allows compatible Windows networking components to work with the modem when cable service and hardware are properly configured.
  • Reinstallation support: Helps restore the required device software after a Windows reinstall or accidental driver removal.
  • Device management: Lets you check driver information and device status through Windows Device Manager once the modem is recognized.

How to Install Com21 DP1110XB USB Cable Modem Driver

  1. Check your Windows configuration. Confirm your operating system version and whether it is 32-bit or 64-bit. Select a package that explicitly supports both your system and the DP1110XB model.
  2. Download and inspect the package. Choose a trusted source, whether it offers a free download or an archived package. Scan the downloaded files with your security software and extract them if necessary.
  3. Read the included instructions. Follow any guidance about when to connect the USB cable. Some installers require the software to be installed before the modem is attached.
  4. Install the driver. Run the provided setup program, if available. Otherwise, open Device Manager, locate the modem or unidentified device, select Update driver, and browse to the extracted driver folder.
  5. Verify operation. Restart Windows if prompted, check Device Manager for errors, and test connectivity. A successful installation still requires active cable service and correct modem configuration.

Keep the driver package backed up once the modem works reliably. Before you update, compare the installed driver with the latest version available for your exact device and Windows edition. Newer is not automatically more compatible, so avoid forcing unsupported drivers or disabling Windows security protections to install them.

Driver Details

DeviceCom21 DP1110XB USB Cable Modem
VendorCom21
CategoryNetwork
Supported OSWindows 10, 8.1, 7, Vista, XP
PublishedNovember 1, 2026
UpdatedNovember 1, 2026
This driver download is available for Windows PCs.

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