ASIX - MultiPortSerial - 3.20.7.200 Driver 3.20.7.200
by AsixWindows 1064-bitSHA-256 verified
- Manufacturer
- Asix
- Device
- ASIX - MultiPortSerial - 3.20.7.200
- Driver version
3.20.7.200- Release date
- October 13, 2020
- Supported Windows
- Windows 10
- Architecture
- 64-bit (x64)
- File size
- 136 KB
- File name
a588d9eb-1279-4619-9fcb-c7f9035a93fe_a8c6b6eac16fa8d070dc5b4b59e396371df836d7.cab- Digital signature
- Signed - catalog
Mos24Ser_QUADPORT.cat - INF version
10/13/2020,3.20.7.200- INF provider
- ASIX
- Device class
- Ports
- Source
- Microsoft Update Catalog
- Last verified
- July 8, 2026
- SHA-256
cb2bd313bc3824af082909da9ddfffe4580be6ad8b14fc3e189274176c9a2007
Supported hardware IDs (5)
- QUADPORT\QUAD_SERIAL_INTERFACE
- QUADPORT\QUAD_PARALLEL_INTERFACE
- QUADPORT\QUAD_SERIAL_INTERFACE_RS232
- QUADPORT\QUAD_SERIAL_INTERFACE_RS485
- USB\VID_0B95&PID_7840
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
- Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
- Verify compatibility: your Windows version (Windows 10) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
- Download the file using the button - it comes directly from Microsoft Update Catalog.
- Optionally verify the checksum: open PowerShell, run
Get-FileHash your-download.cab -Algorithm SHA256and compare with the SHA-256 above. - Extract the .cab archive: right-click → Extract All, or run
expand -F:* file.cab C:\driver\in Command Prompt. - 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. - 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).