ST Lab PCI 2S1P I/O CARD Driver Download

ST Lab Drivers

The PCI 2S1P I/O CARD is a removable drive manufactured by ST Lab. Visitors have downloaded this file "mcs9865.exe" 2,820 times with an aggregate rating of 5 out of 5 stars based on 10 reviews. Our users report success installing this driver update on PCs running Windows 7 and Windows XP. The total disk space used for this update is 2.4 MB.

10 Ratings (see all reviews)

Supported Models


High-Speed PCI Serial Port

M65-PCI ECP Parallel Port

M65-PCI Multi-I/O Controller

M65-PCI Serial Port

PCI ECP Parallel Port

PCI Multifunction-IO Controller

PCI-ISA Communication Port


ST Lab


Supported Operating Systems

Windows Vista, Windows Vista (64 bit), Windows 2003, Windows 2003 (64 bit), Windows XP, Windows XP (64 bit), Windows 2000

File Name

Versions (2008-12-11) via .inf (2008-05-22) via .inf

Additional Notes

PCI I/O Serial

I-420 PCI IO Card 2 Serial Ports Plus 1 Parallel Port

PCI Driver File

Uploaded By

Karthikkumar (DG Staff Member) on 17-Apr-2009

Most Helpful Reviews

John Galt
Tested on Windows 8
31 Mar 2016
(21 minutes after download)

Installation:  out of 5
Stability:  out of 5
Compatibility:  out of 5
"Vista 64 bit definitely will not install on Windows 8, 8.1, or 10. Might run on the older systems, probably Linux. Windows probably broke something to thwart migrating legacy hardware to a new motherboard."
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Tested on Windows XP
8 Sep 2015
(4 days after download)

Installation: 5 out of 5
Stability: 4 out of 5
Compatibility: 4 out of 5
"like this drivers for good"
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See all ST Lab PCI 2S1P I/O CARD ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
2K_XP_2003/Windows32Bit/PciMf.inf 8.9 KB 23 May 2008
2K_XP_2003/Windows32Bit/PciPorts.inf 12.4 KB 23 May 2008
2K_XP_2003/Windows32Bit/PciSetup.exe 262.1 KB 23 May 2008
2K_XP_2003/Windows32Bit/X86/MOSCHIP_PciUninst.exe 249.9 KB 22 May 2008
2K_XP_2003/Windows32Bit/X86/PciIsaSerial.sys 66.0 KB 22 May 2008
2K_XP_2003/Windows32Bit/X86/PciPPorts.sys 82.4 KB 22 May 2008
2K_XP_2003/Windows32Bit/X86/PciPorts.dll 63.5 KB 25 Apr 2008
2K_XP_2003/Windows32Bit/X86/PciSPorts.sys 119.8 KB 22 May 2008
2K_XP_2003/Windows32Bit/ 13.5 KB 4 Jun 2008
2K_XP_2003/Windows64Bit/AMD64/MOSCHIP_PCIUninst.exe 333.8 KB 22 May 2008
2K_XP_2003/Windows64Bit/AMD64/PciIsaSerial.sys 82.9 KB 22 May 2008
2K_XP_2003/Windows64Bit/AMD64/PciPPorts.sys 136.2 KB 22 May 2008
2K_XP_2003/Windows64Bit/AMD64/PciPorts.dll 77.3 KB 25 Apr 2008
2K_XP_2003/Windows64Bit/AMD64/PciSPorts.sys 140.3 KB 22 May 2008
2K_XP_2003/Windows64Bit/PCISetup.exe 358.4 KB 23 May 2008
2K_XP_2003/Windows64Bit/PciMf.inf 8.9 KB 23 May 2008
2K_XP_2003/Windows64Bit/PciPorts.inf 12.4 KB 23 May 2008
2K_XP_2003/Windows64Bit/ 13.6 KB 4 Jun 2008
98SE_ME/M65ENUM.vxd 14.4 KB 4 Dec 2008
98SE_ME/M65Enum.inf 2.1 KB 11 Dec 2008
98SE_ME/M65Ports.inf 2.7 KB 11 Dec 2008
98SE_ME/M65unst.exe 147.5 KB 11 Dec 2008
DOS/GEMDOSIN.EXE 66.4 KB 23 Dec 2008
DOS/gmconfig.cfg 180 bytes 23 Dec 2008
Linux/MCS9865_Linux.tar.gz 329.2 KB 28 Jun 2008
Vista/Vista32Bit/PciMf.inf 8.9 KB 23 May 2008
Vista/Vista32Bit/PciPorts.inf 12.4 KB 23 May 2008
Vista/Vista32Bit/PciSetup.exe 262.1 KB 23 May 2008
Vista/Vista32Bit/X86/MOSCHIP_PciUninst.exe 249.9 KB 22 May 2008
Vista/Vista32Bit/X86/PciIsaSerial.sys 66.6 KB 22 May 2008
Vista/Vista32Bit/X86/PciPPorts.sys 81.9 KB 22 May 2008
Vista/Vista32Bit/X86/PciPorts.dll 63.5 KB 25 Apr 2008
Vista/Vista32Bit/X86/PciSPorts.sys 115.7 KB 22 May 2008
Vista/Vista32Bit/ 13.5 KB 9 Jun 2008
Vista/Vista64Bit/AMD64/MOSCHIP_PCIUninst.exe 333.8 KB 22 May 2008
Vista/Vista64Bit/AMD64/PciIsaSerial.sys 72.2 KB 22 May 2008
Vista/Vista64Bit/AMD64/PciPPorts.sys 95.7 KB 22 May 2008
Vista/Vista64Bit/AMD64/PciPorts.dll 77.3 KB 25 Apr 2008
Vista/Vista64Bit/AMD64/PciSPorts.sys 126.5 KB 22 May 2008
Vista/Vista64Bit/PCISetup.exe 358.4 KB 23 May 2008
Vista/Vista64Bit/PciMf.inf 8.9 KB 23 May 2008
Vista/Vista64Bit/PciPorts.inf 12.4 KB 23 May 2008
Vista/Vista64Bit/ 13.5 KB 9 Jun 2008

How to Update PCI 2S1P I/O CARD Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the PCI 2S1P I/O CARD 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 ST Lab PCI 2S1P I/O CARD 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 ST Lab Driver Update Utility. 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 11, 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 ST Lab. All company names/logos are properties of their owners.
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