ASIX MCS7820 Driver Download (Official)

ASIX Drivers Removable Drive Drivers
ASIX MCS7820 Driver Download (Official)
8 Ratings

Supported Models

MCS7820 Driver

High-Speed USB MultiSerial Compound Device Driver

High-Speed USB Serial Port Driver



Supported Operating Systems

Windows 8 (64 bit), Windows 7 (64 bit), Windows Vista (64 bit), Windows XP (64 bit)

File Name (1.2 MB)

Versions (27-Mar-2012)

Find Related Drivers

Uploader Notes

USB to Dual Serial Controller Driver File

Uploaded By

Shanmugasundaramg (DG Staff Member) on 14-Feb-2013

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/9710_7840_QUADPORT_MSUninst.exe 374.8 KB 19 Jul 2009
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/Installation_Notes.txt 383 bytes 5 Mar 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/MCS78x0_Windows_Driver_User_Manual_v200.pdf 408.6 KB 22 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/MSSetup_QUADPORT.exe 411.6 KB 27 Apr 2010
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/history.txt 21.5 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/MSConfig_QUADPORT.ini 159 bytes 6 Nov 2006
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/Mos24SerPropPage_QUADPORT.dll 65.5 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/Mos24Ser_QUADPORT.inf 5.6 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/Mos24Serial_QUADPORT.exe 428.0 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/Ms24Comp_QUADPORT.inf 3.4 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/MultiMP_QUADPORT.exe 342.0 KB 31 May 2008
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/QuadCoInst_QUADPORT.dll 16.4 KB 29 Apr 2010
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/mos24ser_QUADPORT.sys 277.8 KB 3 Oct 2012
MCS7840_7820_7810_Windows_64bit_Driver_v2.0.2.0_WHCK_Binary/win64_AMD/ 9.9 KB 17 Oct 2012

How to Update MCS7820 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the MCS7820 driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter MCS7820 into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for MCS7820. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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