O2Micro Integrated MMC/SD Controller Driver Download

The O2Micro Integrated MMC/SD Controller is a device manufactured by O2Micro. Visitors have downloaded this file "cardreader.zip" 354 times with an aggregate rating of 5 out of 5 stars based on 6 reviews. It has been installed successfully by our users on PCs running Windows 10 and Windows 7. The total disk space used for this update is 3.9 MB.

6 Ratings (see all reviews)

Supported Models

O2Micro Integrated MMC/SD Controller

O2Micro FlashMedia Disk Device

O2Micro Integrated MS/MSPRO Controller

O2Micro Integrated MS/SM/xD Controller



Supported Operating Systems


File Name

Uploaded By

DriverGuide (DG Staff Member) on 15-Aug-2010

Most Helpful Reviews

Tested on Windows 10
13 Feb 2018
(6 minutes after download)

Installation: 5 out of 5
Stability: 5 out of 5
Compatibility: 5 out of 5
"Worked well on a Gateway laptop that originally had Vista."
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See all O2Micro Integrated MMC/SD Controller ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
CardReader/setup.exe 45.1 KB 18 Dec 2006
CardReader/x64/setup.exe 3.2 MB 19 Jan 2007
CardReader/x64/vista64/O2SDx64.INF 1.8 KB 19 Dec 2006
CardReader/x64/vista64/o2medx64.INF 1.8 KB 28 Nov 2006
CardReader/x64/vista64/o2medx64.cat 8.1 KB 30 Nov 2006
CardReader/x64/vista64/o2medx64.sys 110.1 KB 28 Nov 2006
CardReader/x64/vista64/o2sdx64.cat 8.1 KB 2 Jan 2007
CardReader/x64/vista64/o2sdx64.sys 43.3 KB 19 Dec 2006
CardReader/x64/xp64/O2MDDISK.CAT 7.5 KB 8 Sep 2005
CardReader/x64/xp64/O2MDDISK.INF 902 bytes 5 Apr 2005
CardReader/x64/xp64/O2SDx64.INF 1.8 KB 19 Dec 2006
CardReader/x64/xp64/o2mediaamd64.INF 1.8 KB 26 Apr 2006
CardReader/x64/xp64/o2mediaamd64.cat 8.0 KB 1 May 2006
CardReader/x64/xp64/o2mediaamd64.sys 45.3 KB 20 Apr 2006
CardReader/x64/xp64/o2sdx64.cat 10.7 KB 8 Jan 2007
CardReader/x64/xp64/o2sdx64.sys 43.3 KB 19 Dec 2006
CardReader/x86/setup.exe 2.2 MB 19 Jan 2007
CardReader/x86/vista/O2MEDIA.INF 1.8 KB 20 Nov 2006
CardReader/x86/vista/O2SD.INF 1.8 KB 19 Dec 2006
CardReader/x86/vista/o2media.cat 8.1 KB 21 Nov 2006
CardReader/x86/vista/o2media.sys 38.4 KB 20 Nov 2006
CardReader/x86/vista/o2sd.cat 8.1 KB 2 Jan 2007
CardReader/x86/vista/o2sd.sys 36.0 KB 19 Dec 2006
CardReader/x86/xp/O2MDDISK.CAT 7.5 KB 28 Feb 2006
CardReader/x86/xp/O2MDDISK.INF 886 bytes 14 Mar 2005
CardReader/x86/xp/O2MEDIA.CAT 8.0 KB 28 Feb 2006
CardReader/x86/xp/O2MEDIA.INF 1.7 KB 27 Feb 2006
CardReader/x86/xp/O2SD.INF 1.8 KB 19 Dec 2006
CardReader/x86/xp/o2media.sys 34.9 KB 27 Feb 2006
CardReader/x86/xp/o2sd.cat 8.1 KB 2 Jan 2007
CardReader/x86/xp/o2sd.sys 36.0 KB 19 Dec 2006

How to Update O2Micro Integrated MMC/SD Controller Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the O2Micro Integrated MMC/SD Controller 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 O2Micro Integrated MMC/SD Controller 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 O2Micro Integrated MMC/SD Controller. 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 O2Micro. All company names/logos are properties of their owners.
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