MosChip MCS9901 Driver Download (Official)

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

File Name (3.4 MB)

Versions (28-Mar-2008) (2008-02-20) via .inf

Find Related Drivers

Uploader Notes

MCS9901 is a single lane PCI Express (PCIe) based Peripheral Controller. It is a single chip solution for PCIe based Serial, Parallel Port expansion add-in cards. MCS9901 supports four high performance Serial Ports, one IEEE 1284 compliant parallel port, one USB 2.0 host controller and ISA style interface.

Uploaded By

Sathishkumar (DG Staff Member) on 14-Aug-2009

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
MCS9901_WHQL/MCS9901_Vista_UM_WHQL.pdf 683.3 KB 21 Mar 2008
MCS9901_WHQL/MCS9901_WinXP_UM_WHQL.pdf 1.1 MB 28 Mar 2008
MCS9901_WHQL/Win Vista/Vista32Bit/PCIeMF.inf 8.1 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/PCIeNull.inf 1.6 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/PCIePorts.inf 11.7 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/PCIeSetup32.exe 262.1 KB 21 Mar 2008
MCS9901_WHQL/Win Vista/Vista32Bit/X86/ISASerial.sys 66.6 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/X86/MOSCHIP_PCIeUninst.exe 245.8 KB 20 Mar 2008
MCS9901_WHQL/Win Vista/Vista32Bit/X86/PCIePorts.dll 63.5 KB 29 Jan 2008
MCS9901_WHQL/Win Vista/Vista32Bit/X86/PPorts.sys 81.9 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/X86/SPorts.sys 113.7 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista32Bit/ 15.2 KB 7 Mar 2008
MCS9901_WHQL/Win Vista/Vista64Bit/AMD64/ISASerial.sys 72.2 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/AMD64/MOSCHIP_PCIeUninst.exe 333.8 KB 20 Mar 2008
MCS9901_WHQL/Win Vista/Vista64Bit/AMD64/PCIePorts.dll 77.3 KB 29 Jan 2008
MCS9901_WHQL/Win Vista/Vista64Bit/AMD64/PPorts.sys 95.7 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/AMD64/SPorts.sys 124.4 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/PCIeMF.inf 8.1 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/PCIeNull.inf 1.6 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/PCIePorts.inf 11.7 KB 20 Feb 2008
MCS9901_WHQL/Win Vista/Vista64Bit/PCIeSetup64.exe 359.4 KB 21 Mar 2008
MCS9901_WHQL/Win Vista/Vista64Bit/ 15.2 KB 7 Mar 2008
MCS9901_WHQL/Win XP/Windows32Bit/PCIeMF.inf 8.1 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/PCIeNull.inf 1.6 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/PCIePorts.inf 11.7 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/PCIeSetup32.exe 262.1 KB 21 Mar 2008
MCS9901_WHQL/Win XP/Windows32Bit/X86/ISASerial.sys 64.5 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/X86/MOSCHIP_PCIeUninst.exe 245.8 KB 20 Mar 2008
MCS9901_WHQL/Win XP/Windows32Bit/X86/PCIePorts.dll 63.5 KB 29 Jan 2008
MCS9901_WHQL/Win XP/Windows32Bit/X86/PPorts.sys 81.2 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/X86/SPorts.sys 115.7 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows32Bit/ 15.2 KB 26 Mar 2008
MCS9901_WHQL/Win XP/Windows64Bit/AMD64/ISASerial.sys 82.9 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/AMD64/MOSCHIP_PCIeUninst.exe 333.8 KB 20 Mar 2008
MCS9901_WHQL/Win XP/Windows64Bit/AMD64/PCIePorts.dll 77.3 KB 29 Jan 2008
MCS9901_WHQL/Win XP/Windows64Bit/AMD64/PPorts.sys 136.2 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/AMD64/SPorts.sys 137.7 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/PCIeMF.inf 8.1 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/PCIeNull.inf 1.6 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/PCIePorts.inf 11.7 KB 20 Feb 2008
MCS9901_WHQL/Win XP/Windows64Bit/PCIeSetup64.exe 359.4 KB 21 Mar 2008
MCS9901_WHQL/Win XP/Windows64Bit/ 15.3 KB 26 Mar 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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