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HDA CX20549-Softmodem Driver

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Network Microsoft Windows 10, 8.1, 7, Vista, XP
This driver download is available for Windows PCs.
At a Glance
DeviceHDA CX20549-Softmodem
VendorMicrosoft
Supported OSWindows 10, 8.1, 7, Vista, XP
SafetyScanned, malware-free
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On This Page

The HDA CX20549-Softmodem driver lets Windows communicate with the computer’s built-in dial-up modem, enabling compatible software to use a telephone-line connection. Listed under Microsoft in the Network category, this device requires a matching driver if you have reinstalled Windows, see an unidentified modem in Device Manager, or need to restore dial-up connectivity.

Key Features

  • Modem recognition: Helps Windows identify the HDA CX20549-Softmodem and make it available to compatible communications software.
  • Dial-up connection support: Provides the software interface needed to connect through an analog telephone line and a dial-up service.
  • Legacy Windows options: Driver selection covers Windows 10, 8.1, 7, Vista, and XP; individual packages may support only certain versions or architectures.
  • Troubleshooting support: Installing the correct package can resolve missing-driver errors and restore access to modem settings in Windows.

How to Install HDA CX20549-Softmodem Driver

  1. Identify your Windows version. Check whether your system uses 32-bit or 64-bit Windows. For Windows 10/11 systems, note that Windows 10 is listed as supported, but Windows 11 compatibility is not confirmed.
  2. Verify the hardware. Open Device Manager and locate the modem or unidentified device. Under Properties > Details > Hardware Ids, check the identifier against the driver package’s supported devices.
  3. Choose a compatible package. Before starting an HDA CX20549-Softmodem driver download for Windows, review its operating-system requirements and source. If a free download is offered, make sure it includes the driver rather than an unrelated updater.
  4. Install the driver. Extract the downloaded archive if necessary, then run its setup program. If no installer is included, select Update driver in Device Manager, choose Browse my computer for drivers, and point Windows to the extracted folder.
  5. Restart and test. Restart if prompted, then confirm that Device Manager shows the modem without a warning icon. Test it using your dial-up connection settings and a suitable analog telephone line; this device does not provide Wi-Fi or Ethernet access.

Keep the driver updated when a compatible release addresses a problem you are experiencing. The latest version is useful only if it matches your hardware and Windows edition, so review compatibility before each update and retain a working driver copy in case you need to roll back.

Driver Details

DeviceHDA CX20549-Softmodem
VendorMicrosoft
CategoryNetwork
Supported OSWindows 10, 8.1, 7, Vista, XP
PublishedOctober 31, 2026
UpdatedNovember 1, 2026
This driver download is available for Windows PCs.

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