DriverCove

PHD Inc - Other hardware - PHD USB CDC Modem 3100 Driver 1.4.6.0

by PHD Inc8.18764-bitSHA-256 verified

Manufacturer
PHD Inc
Device
PHD Inc - Other hardware - PHD USB CDC Modem 3100
Driver version
1.4.6.0
Release date
August 24, 2007
Supported Windows
Windows 8.1, Windows 8, Windows 7
Architecture
64-bit (x64)
File size
184 KB
File name
20168985_83a07ed0dc9fdf7555d7a86c3e4b8a85e6f33b3f.cab
INF version
08/24/2007,1.4.006
INF provider
PHD Inc
Device class
Modem
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
257f11ec2f949def8af814a1119eef74b175c7dddd0d1a40ac34bf8a8e628723

Supported hardware IDs (2)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 8.1, Windows 8, Windows 7) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run pnputil /add-driver C:\driver\*.inf /install.
  7. Check Device Manager: the device should show no warning icons, and the driver version should match.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).