DriverCove

DAVICOM Semiconductor, Inc. - Network - DM9621A USB Adapter Driver 5.0.1.215

by Davicom Semiconductor, Inc.8.18732-bitSHA-256 verified

Manufacturer
Davicom Semiconductor, Inc.
Device
DAVICOM Semiconductor, Inc. - Network - DM9621A USB Adapter
Driver version
5.0.1.215
Release date
February 15, 2012
Supported Windows
Windows 8.1, Windows 8, Windows 7
Architecture
32-bit (x86)
File size
1.5 MB
File name
20474922_357431c756dc199e28c6425231c829146c32c295.cab
Digital signature
Signed - catalog dm9usb.cat
INF version
02/15/2012, 5.0.1.0215
INF provider
DAVICOM Semiconductor, Inc.
Device class
Net
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
5fa6e6784a79da37f25eac11bf82de6817cb78c2bca5f584cc7c37b6c7dd0e3e

Supported hardware IDs (8)

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 (x86)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).