MosChip MCS9901 Driver Download (Official)

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MosChip MCS9901 Driver Download (Official)
2 Ratings

Supported Models

MCS9901 Driver

High-Speed PCIe Serial Port Driver

PCI-Express Multi-IO Controller Driver

PCIe ECP Parallel Port Driver

PCIe-IO Bridge Driver

PCIe-ISA Communication Port Driver

PCIe-ISA Parallel Port Driver



Supported Operating Systems

Windows XP (64 bit)

File Name (1.8 MB)

Versions (22-Jan-2010)

Find Related Drivers

Uploader Notes

PCI and PCI Express Connectivity

Single lane PCI Express (PCIe) based Peripheral Controller

Uploaded By

Dilipkumar (DG Staff Member) on 12-Apr-2010

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
MCS9901_XP/AMD64/ISASerial.sys 82.9 KB 29 Jan 2008
MCS9901_XP/AMD64/MOSCHIP_PCIeUninst.exe 49.2 KB 29 Jan 2008
MCS9901_XP/AMD64/PCIeCoInst.dll 12.8 KB 29 Jan 2008
MCS9901_XP/AMD64/PCIePorts.dll 77.3 KB 29 Jan 2008
MCS9901_XP/AMD64/PPorts.sys 137.2 KB 29 Jan 2008
MCS9901_XP/AMD64/SPorts.sys 138.2 KB 29 Jan 2008
MCS9901_XP/MCS9901_WinXP_UM_Ver0.3.pdf 1.4 MB 19 Feb 2008
MCS9901_XP/PCIeMF.inf 11.3 KB 29 Jan 2008
MCS9901_XP/PCIeNull.inf 1.9 KB 29 Jan 2008
MCS9901_XP/PCIePorts.inf 17.1 KB 29 Jan 2008
MCS9901_XP/PCIeSetup.exe 266.2 KB 29 Jan 2008
MCS9901_XP/X86/ISASerial.sys 67.1 KB 29 Jan 2008
MCS9901_XP/X86/MOSCHIP_PCIeUninst.exe 49.2 KB 29 Jan 2008
MCS9901_XP/X86/PCIeCoInst.dll 9.2 KB 29 Jan 2008
MCS9901_XP/X86/PCIePorts.dll 63.5 KB 29 Jan 2008
MCS9901_XP/X86/PPorts.sys 83.5 KB 29 Jan 2008
MCS9901_XP/X86/SPorts.sys 117.2 KB 29 Jan 2008

How to Update MCS9901 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the MCS9901 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 MCS9901 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 MCS9901. 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

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.

This website is not affiliated with MosChip. All company names/logos are properties of their owners.
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