Download the latest version of the S15ST3 driver for your computer's operating system. It has been downloaded 41 times with a user rating of 5 out of 5 stars, based on 5 reviews. It is compatible with PCs running Windows 7, Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 16.1 MB.
S15ST3
O2Micro Integrated MMC/SD Controller
O2Micro Integrated MS/MSPRO/xD Controller
O2Micro MMC Disk Device
O2Micro MS/PRO Disk Device
O2Micro OZ6812 CardBus Controller
O2Micro OZ6832/6833 CardBus Controller
Windows 7, Windows 7 (64 bit), Windows Vista, Windows Vista (64 bit), Windows XP, Windows XP (64 bit)
O2Micro_FlashMemory_Controller_1.1.1.315_xpVista__1.1.1.316_win7_.zip___ (16.1 MB)
1.1.1.316 (6-May-2009)
Card Reader Driver File
Karthika (DG Staff Member) on 7-Nov-2011
PCI\VEN_1217&DEV_6872&SUBSYS_30001584&REV_05
PCI\VEN_1217&DEV_6933&SUBSYS_0021103C&REV_01
PCI\VEN_1217&DEV_6933&SUBSYS_002A103C&REV_01
PCI\VEN_1217&DEV_6933&SUBSYS_00580E11&REV_01
PCI\VEN_1217&DEV_6933&SUBSYS_101A1025&REV_02
PCI\VEN_1217&DEV_6972&SUBSYS_00000000&REV_00
To get the S15ST3 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 Twinhead S15ST3 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 Twinhead S15ST3. It is a software utility which automatically finds and downloads the right driver.
Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:
Access the Quick Access menu by right-clicking the Start button.
From the menu options, choose "Device Manager".
Within Device Manager, identify the device requiring the driver update.
Open the context menu for the device by right-clicking its name.
Select "Update driver" and proceed through the guided installation.
To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.
Regular driver updates contribute to optimal system performance and hardware compatibility.
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.
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| setup.exe | 79.1 KB | 25 Oct 2007 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2flash.exe | 72.2 KB | 5 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/O2Icon.dll | 739.9 KB | 11 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/O2Icon_2.dll | 1.2 MB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2mddisk.cat | 8.3 KB | 11 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/O2MDDISK.INF | 989 bytes | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2mdx64.cat | 9.6 KB | 11 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2mdx64.INF | 2.4 KB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2mdx64.sys | 56.6 KB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2sddisk.cat | 8.2 KB | 18 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/O2SDDISK.INF | 972 bytes | 8 Jan 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2sdx64.cat | 9.1 KB | 18 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/O2SDx64.INF | 1.9 KB | 4 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/xp/o2sdx64.sys | 49.7 KB | 11 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2flash.exe | 65.5 KB | 12 Feb 2007 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/O2Icon.dll | 739.9 KB | 6 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/O2Icon_2.dll | 1.2 MB | 6 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2mddisk.cat | 7.2 KB | 20 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/O2MDDISK.INF | 984 bytes | 6 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2mdx64.cat | 8.5 KB | 20 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2mdx64.INF | 2.4 KB | 11 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2mdx64.sys | 63.3 KB | 7 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2sddisk.cat | 7.2 KB | 20 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/O2SDDISK.INF | 967 bytes | 6 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2sdx64.cat | 8.0 KB | 20 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/O2SDx64.INF | 1.9 KB | 29 Apr 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/win7/o2sdx64.sys | 49.7 KB | 7 May 2009 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2flash.exe | 72.2 KB | 5 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/O2Icon.dll | 739.9 KB | 11 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/O2Icon_2.dll | 1.2 MB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2mddisk.cat | 8.3 KB | 11 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/O2MDDISK.INF | 988 bytes | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2mdx64.cat | 9.5 KB | 11 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2mdx64.inf | 2.4 KB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2mdx64.sys | 63.3 KB | 10 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2sddisk.cat | 8.3 KB | 18 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/O2SDDISK.INF | 971 bytes | 5 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2sdx64.cat | 9.1 KB | 18 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/O2SDx64.INF | 1.9 KB | 4 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/vista/o2sdx64.sys | 49.7 KB | 7 Nov 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/utility/DIFxAPI.dll | 512.0 KB | 12 Dec 2008 |
| x64/program files/O2Micro Flash Memory Card Driver/utility/DPInst.exe | 925.2 KB | 15 Oct 2008 |
| x64/System32/SDA/SDPA7120.dll | 73.7 KB | 16 Nov 2007 |
| x64/0x0c0c.ini | 7.4 KB | 28 Mar 2007 |
| x64/0x040a.ini | 7.1 KB | 28 Mar 2007 |
| x64/0x040b.ini | 6.4 KB | 28 Mar 2007 |
| x64/0x040c.ini | 7.3 KB | 16 Apr 2007 |
| x64/0x040e.ini | 6.5 KB | 28 Mar 2007 |
| x64/0x041b.ini | 6.6 KB | 28 Mar 2007 |
| x64/0x041d.ini | 6.2 KB | 28 Mar 2007 |
| x64/0x041f.ini | 6.4 KB | 28 Mar 2007 |
| x64/0x0404.ini | 4.3 KB | 28 Mar 2007 |
| x64/0x0405.ini | 6.6 KB | 28 Mar 2007 |
| x64/0x0406.ini | 6.5 KB | 28 Mar 2007 |
| x64/0x0407.ini | 7.2 KB | 28 Mar 2007 |
| x64/0x0408.ini | 7.5 KB | 28 Mar 2007 |
| x64/0x0409.ini | 6.2 KB | 8 Mar 2007 |
| x64/0x0410.ini | 7.0 KB | 28 Mar 2007 |
| x64/0x0411.ini | 6.7 KB | 28 Mar 2007 |
| x64/0x0412.ini | 5.8 KB | 2 Apr 2007 |
| x64/0x0413.ini | 6.9 KB | 28 Mar 2007 |
| x64/0x0414.ini | 6.4 KB | 28 Mar 2007 |
| x64/0x0415.ini | 6.8 KB | 28 Mar 2007 |
| x64/0x0419.ini | 6.6 KB | 28 Mar 2007 |
| x64/0x0804.ini | 4.4 KB | 28 Mar 2007 |
| x64/0x0816.ini | 6.9 KB | 28 Mar 2007 |
| x64/1028.mst | 36.9 KB | 27 May 2009 |
| x64/1029.mst | 49.2 KB | 27 May 2009 |
| x64/1030.mst | 48.1 KB | 27 May 2009 |
| x64/1031.mst | 54.8 KB | 27 May 2009 |
| x64/1032.mst | 54.3 KB | 27 May 2009 |
| x64/1033.mst | 3.6 KB | 27 May 2009 |
| x64/1034.mst | 51.7 KB | 27 May 2009 |
| x64/1035.mst | 48.1 KB | 27 May 2009 |
| x64/1036.mst | 53.8 KB | 27 May 2009 |
| x64/1038.mst | 52.2 KB | 27 May 2009 |
| x64/1040.mst | 54.3 KB | 27 May 2009 |
| x64/1041.mst | 51.7 KB | 27 May 2009 |
| x64/1042.mst | 46.6 KB | 27 May 2009 |
| x64/1043.mst | 53.2 KB | 27 May 2009 |
| x64/1044.mst | 48.1 KB | 27 May 2009 |
| x64/1045.mst | 50.2 KB | 27 May 2009 |
| x64/1049.mst | 48.6 KB | 27 May 2009 |
| x64/1051.mst | 48.1 KB | 27 May 2009 |
| x64/1053.mst | 47.6 KB | 27 May 2009 |
| x64/1055.mst | 48.1 KB | 27 May 2009 |
| x64/2052.mst | 37.4 KB | 27 May 2009 |
| x64/2070.mst | 50.7 KB | 27 May 2009 |
| x64/3084.mst | 54.3 KB | 27 May 2009 |
| x64/O2Micro Flash Memory Card Reader Driver.msi | 8.6 MB | 27 May 2009 |
| x64/setup.exe | 371.8 KB | 27 May 2009 |
| x64/Setup.ini | 3.0 KB | 27 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2flash.exe | 72.2 KB | 5 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2Icon.dll | 739.9 KB | 11 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2Icon_2.dll | 1.2 MB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2mddisk.cat | 8.3 KB | 11 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2MDDISK.INF | 971 bytes | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2media.cat | 9.5 KB | 11 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2MEDIA.INF | 2.4 KB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2media.sys | 52.1 KB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2sd.cat | 9.0 KB | 18 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2SD.INF | 1.8 KB | 4 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2sd.sys | 42.1 KB | 11 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/o2sddisk.cat | 8.2 KB | 18 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/xp/O2SDDISK.INF | 953 bytes | 8 Jan 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2flash.exe | 65.5 KB | 12 Feb 2007 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/O2Icon.dll | 739.9 KB | 6 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/O2Icon_2.dll | 1.2 MB | 6 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2mddisk.cat | 7.2 KB | 20 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/O2MDDISK.INF | 968 bytes | 6 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2media.cat | 8.4 KB | 20 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2media.inf | 2.4 KB | 11 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2media.sys | 52.1 KB | 7 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2sd.cat | 8.0 KB | 20 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/O2SD.INF | 1.8 KB | 29 Apr 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2sd.sys | 42.1 KB | 7 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/o2sddisk.cat | 7.2 KB | 20 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/win7/O2SDDISK.INF | 950 bytes | 6 May 2009 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2flash.exe | 72.2 KB | 5 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2Icon.dll | 739.9 KB | 11 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2Icon_2.dll | 1.2 MB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2mddisk.cat | 8.3 KB | 11 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2MDDISK.INF | 972 bytes | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2media.cat | 9.5 KB | 11 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2MEDIA.INF | 2.4 KB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2media.sys | 52.1 KB | 10 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2sd.cat | 9.1 KB | 18 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2SD.INF | 1.8 KB | 4 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2sd.sys | 42.1 KB | 11 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/o2sddisk.cat | 8.3 KB | 18 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/vista/O2SDDISK.INF | 954 bytes | 5 Nov 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/utility/utility/DIFxAPI.dll | 313.9 KB | 12 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/utility/utility/DPInst.exe | 790.0 KB | 12 Dec 2008 |
| x86/program files/O2Micro Flash Memory Card Driver/cardbus_xp/o2mwxp.cat | 8.7 KB | 11 Feb 2005 |
| x86/program files/O2Micro Flash Memory Card Driver/cardbus_xp/O2MWXP.INF | 4.3 KB | 9 Feb 2005 |
| x86/System32/SDA/SDA/SDPA7120.dll | 73.7 KB | 16 Nov 2007 |
| x86/0x0c0c.ini | 7.4 KB | 28 Mar 2007 |
| x86/0x040a.ini | 7.1 KB | 28 Mar 2007 |
| x86/0x040b.ini | 6.4 KB | 28 Mar 2007 |
| x86/0x040c.ini | 7.3 KB | 16 Apr 2007 |
| x86/0x040e.ini | 6.5 KB | 28 Mar 2007 |
| x86/0x041b.ini | 6.6 KB | 28 Mar 2007 |
| x86/0x041d.ini | 6.2 KB | 28 Mar 2007 |
| x86/0x041f.ini | 6.4 KB | 28 Mar 2007 |
| x86/0x0404.ini | 4.3 KB | 28 Mar 2007 |
| x86/0x0405.ini | 6.6 KB | 28 Mar 2007 |
| x86/0x0406.ini | 6.5 KB | 28 Mar 2007 |
| x86/0x0407.ini | 7.2 KB | 28 Mar 2007 |
| x86/0x0408.ini | 7.5 KB | 28 Mar 2007 |
| x86/0x0409.ini | 6.2 KB | 8 Mar 2007 |
| x86/0x0410.ini | 7.0 KB | 28 Mar 2007 |
| x86/0x0411.ini | 6.7 KB | 28 Mar 2007 |
| x86/0x0412.ini | 5.8 KB | 2 Apr 2007 |
| x86/0x0413.ini | 6.9 KB | 28 Mar 2007 |
| x86/0x0414.ini | 6.4 KB | 28 Mar 2007 |
| x86/0x0415.ini | 6.8 KB | 28 Mar 2007 |
| x86/0x0419.ini | 6.6 KB | 28 Mar 2007 |
| x86/0x0804.ini | 4.4 KB | 28 Mar 2007 |
| x86/0x0816.ini | 6.9 KB | 28 Mar 2007 |
| x86/1028.mst | 37.4 KB | 27 May 2009 |
| x86/1029.mst | 49.2 KB | 27 May 2009 |
| x86/1030.mst | 48.6 KB | 27 May 2009 |
| x86/1031.mst | 55.3 KB | 27 May 2009 |
| x86/1032.mst | 54.3 KB | 27 May 2009 |
| x86/1033.mst | 3.6 KB | 27 May 2009 |
| x86/1034.mst | 52.2 KB | 27 May 2009 |
| x86/1035.mst | 48.6 KB | 27 May 2009 |
| x86/1036.mst | 54.3 KB | 27 May 2009 |
| x86/1038.mst | 52.2 KB | 27 May 2009 |
| x86/1040.mst | 54.8 KB | 27 May 2009 |
| x86/1041.mst | 52.2 KB | 27 May 2009 |
| x86/1042.mst | 47.1 KB | 27 May 2009 |
| x86/1043.mst | 53.2 KB | 27 May 2009 |
| x86/1044.mst | 48.6 KB | 27 May 2009 |
| x86/1045.mst | 50.7 KB | 27 May 2009 |
| x86/1049.mst | 49.2 KB | 27 May 2009 |
| x86/1051.mst | 48.1 KB | 27 May 2009 |
| x86/1053.mst | 48.6 KB | 27 May 2009 |
| x86/1055.mst | 48.1 KB | 27 May 2009 |
| x86/2052.mst | 37.9 KB | 27 May 2009 |
| x86/2070.mst | 51.2 KB | 27 May 2009 |
| x86/3084.mst | 54.3 KB | 27 May 2009 |
| x86/O2Micro Flash Memory Card Reader Driver.msi | 8.5 MB | 27 May 2009 |
| x86/setup.exe | 371.8 KB | 27 May 2009 |
| x86/Setup.ini | 3.0 KB | 27 May 2009 |