Optima Centoris A255 Series Driver Download (Official)

Download the latest version of the Centoris A255 Series driver for your computer's operating system. This version of "a255_PCMCIA.zip" is rated (4 out of 5 stars) based on 236 downloads and 13 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 5.0 MB.

13 Ratings (see all reviews)

Supported Models

Centoris A255 Series

O2Micro OZ6812 CardBus Controller

O2Micro OZ6832/6833 CardBus Controller

O2Micro OZ6836/6860 CardBus Controller

O2Micro OZ6912/711E0 CardBus/SmartCardBus Controller

O2Micro OZ6922 CardBus Controller

O2Micro OZ6933/711E1 CardBus/SmartCardBus Controller

O2Micro OZ6933E CardBus Controller




Supported Operating Systems

Windows XP, Windows 2000

File Name


V1.0.7.1 (12-Feb-2004)
5.00.2183.1 (2003-03-31) via .inf
5.1.2600.0 (2003-03-31) via .inf (2004-02-12) via .inf

Additional Notes

Centoris A255 Series

O2Micro (C) OZ711Mx MediaBay Reader

Driver for the PCMCIA slot in the A255 Series notebooks

Uploaded By

Malathy (DG Staff Member) on 7-Mar-2006

Ratings & Reviews

See all Optima Centoris A255 Series ratings and reviews

Device Hardware IDs

Compatible IDs













How to Update Centoris A255 Series Device Drivers

Step 1 - Download Your Driver

To get the Centoris A255 Series 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 Optima Centoris A255 Series 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 Optima Centoris A255 Series. It is a software utility which automatically finds and downloads the right driver.

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
Driver/PCMCIA/0x0404.ini 2.9 KB 2 May 2002
Driver/PCMCIA/0x0409.ini 4.1 KB 2 May 2002
Driver/PCMCIA/0x0411.ini 4.2 KB 22 Apr 2002
Driver/PCMCIA/0x0804.ini 2.9 KB 2 May 2002
Driver/PCMCIA/1028.mst 20.0 KB 11 Feb 2004
Driver/PCMCIA/1033.mst 3.6 KB 11 Feb 2004
Driver/PCMCIA/1041.mst 29.7 KB 11 Feb 2004
Driver/PCMCIA/2052.mst 20.5 KB 11 Feb 2004
Driver/PCMCIA/O2Micro/O2Remove.exe 34.3 KB 29 Oct 2003
Driver/PCMCIA/O2Micro/SetupCB.exe 20.5 KB 14 Sep 2002
Driver/PCMCIA/O2Micro/SetupMMB.exe 20.5 KB 1 May 2003
Driver/PCMCIA/O2Micro/Win2k/MbxStby.sys 6.1 KB 28 Jan 2004
Driver/PCMCIA/O2Micro/Win2k/O2MW2K.INF 3.7 KB 31 Mar 2003
Driver/PCMCIA/O2Micro/Win2k/O2mmb.inf 2.5 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/Win2k/Release.txt 5.6 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/Win2k/o2mmb.cat 8.3 KB 26 Feb 2004
Driver/PCMCIA/O2Micro/Win2k/o2mmb.sys 191.1 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/Win2k/o2mw2k.cat 8.2 KB 9 Apr 2003
Driver/PCMCIA/O2Micro/WinXp/MbxStby.sys 6.1 KB 28 Jan 2004
Driver/PCMCIA/O2Micro/WinXp/O2MWXP.INF 3.7 KB 31 Mar 2003
Driver/PCMCIA/O2Micro/WinXp/O2mmb.inf 2.5 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/WinXp/Release.txt 5.6 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/WinXp/o2mmb.cat 8.3 KB 26 Feb 2004
Driver/PCMCIA/O2Micro/WinXp/o2mmb.sys 191.1 KB 12 Feb 2004
Driver/PCMCIA/O2Micro/WinXp/o2mwxp.cat 8.2 KB 9 Apr 2003
Driver/PCMCIA/O2Micro/chipId 128 bytes 29 May 2003
Driver/PCMCIA/O2Micro/mbxfinst.exe 41.0 KB 1 May 2003
Driver/PCMCIA/Setup.ini 1.3 KB 11 Feb 2004
Driver/PCMCIA/instmsia.exe 1.7 MB 11 Mar 2002
Driver/PCMCIA/instmsiw.exe 1.8 MB 11 Mar 2002
Driver/PCMCIA/isscript.msi 633.9 KB 15 Oct 2002
Driver/PCMCIA/mbxinst.msi 2.2 MB 11 Feb 2004
Driver/PCMCIA/setup.exe 217.1 KB 11 Feb 2004
This website is not affiliated with Optima. All company names/logos are properties of their owners.
server: web3, load: 0.83