DriverCove

MCS7820 MCS7840 2 4 port serial adapter Driver 1.4.7.17

by MosChip8.18764-bitSHA-256 verified

Manufacturer
MosChip
Device
MCS7820 MCS7840 2 4 port serial adapter
Driver version
1.4.7.17
Release date
December 24, 2009
Supported Windows
Windows 8.1, Windows 8, Windows 7
Architecture
64-bit (x64)
File size
325 KB
File name
20350654_2c6dc5e45198cf8b5e202c053722d4f5d37cf976.cab
Digital signature
Signed - catalog Mos24Ser_QUADPORT.cat
INF version
12/24/2009,1.4.7.17
INF provider
MosChip Semiconductor Technology Ltd.
Device class
Ports
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
221f2483e272c06f6b2895fb5476bfc6e953a332bd8425f340ff7c9d3dd844ce

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).