MosChip MCS7840 Driver Download (Official)
The MCS7840 is a network device manufactured by MosChip. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. This driver - "Driver_Release_20Note64_7840.zip" - has been downloaded 46 times and is rated 5 out of 5 stars based on 11 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 868.5 KB.
Supported Models
MCS7840
High-Speed USB Serial Port
Manufacturers
Supported Operating Systems
Windows XP (64 bit)
File Name
Driver_Release_20Note64_7840.zip (868.5 KB)
Versions
1.4.1.0 (31-May-2008)
1.4.1.0 (2008-05-30) via .inf
Additional Notes
The MCS7840 is a USB 2.0 to Quad-Serial Port device. It has been developed to connect a wide range of standard serial devices to a USB host. The MCS7840 has a USB device controller connected to four (4) individual UARTs.
Uploaded By
Sathishkumar (DG Staff Member) on 14-Aug-2009
Related Driver Updates
How to Update MCS7840 Device Drivers
Step 1 - Download Your Driver
To get the MCS7840 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 MosChip MCS7840 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 MosChip Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the MosChip website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
After you get your new driver, you need to put it on your computer. On Windows, there's a tool called Device Manager that helps with this. It shows you all the parts of your computer and the drivers they use. To finish setting up the new driver, you'll probably need to turn your computer off and on again.
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.
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| Readme.txt | 208 bytes | 5 Apr 2007 |
| Version1.4.1.0/Win64/9710_7840_QUADPORT_MSUninst.exe | 373.8 KB | 3 Jun 2008 |
| Version1.4.1.0/Win64/MSSetup_QUADPORT.exe | 410.1 KB | 3 Jun 2008 |
| Version1.4.1.0/Win64/win64_AMD/MSConfig_QUADPORT.ini | 159 bytes | 6 Nov 2006 |
| Version1.4.1.0/Win64/win64_AMD/Mos24SerPropPage_QUADPORT.dll | 65.5 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/Mos24Ser_QUADPORT.inf | 4.9 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/Mos24Serial_QUADPORT.exe | 421.4 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/Ms24Comp_QUADPORT.inf | 3.3 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/MultiMP_QUADPORT.exe | 342.0 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/QuadCoInst.dll | 12.3 KB | 31 May 2008 |
| Version1.4.1.0/Win64/win64_AMD/mos24ser_QUADPORT.sys | 365.3 KB | 31 May 2008 |