Download the latest version of the 1024_1024B_S420 driver for your computer's operating system. This driver - "Drv_Cardreader_O2Micro_W2K-WXP_5.1.2600.0.zip" - has been downloaded 17 times and is rated 5 out of 5 stars based on 6 reviews. It is compatible with PCs running Windows XP, among other operating systems. The total disk space used for this update is 1.9 MB.
1024_1024B_S420
O2Micro FlashMedia Disk Device
O2Micro Integrated MMC/SD Controller
O2Micro Integrated MS/MSPRO Controller
O2Micro OZ6812 CardBus Controller
O2Micro OZ6832/6833 CardBus Controller
O2Micro OZ6836/6860 CardBus Controller
O2Micro OZ6912/601/711E0 CardBus/SmartCardBus Controller
Windows XP, Windows 2000
1024_1024B_S420
Drv_Cardreader_O2Micro Driver File
RajeshP (DG Staff Member) on 31-Jul-2008
PCI\VEN_1217&DEV_6872&SUBSYS_30001584&REV_05
PCI\VEN_1217&DEV_6933&SUBSYS_00026933&REV_01\3&61AAA01&0&50
PCI\VEN_1217&DEV_6933&SUBSYS_00026933&REV_01\3&61AAA01&0&51
PCI\VEN_1217&DEV_6933&SUBSYS_0021103C&REV_01
PCI\VEN_1217&DEV_6933&SUBSYS_002A103C&REV_01
PCI\VEN_1217&DEV_6972&SUBSYS_00000000&REV_00
To get the 1024_1024B_S420 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 Prosys-Tec 1024_1024B_S420 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 Prosys-Tec 1024_1024B_S420. It is a software utility which automatically finds and downloads the right driver.
Open a tool called Device Manager.
Use Device Manager to put the new driver on your computer.
Turn your computer off.
Turn your computer back on.
Now your new driver is ready!
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 |
|---|---|---|
| 0x0804.ini | 3.8 KB | 8 Apr 2004 |
| 1028.mst | 309.2 KB | 2 Mar 2006 |
| 1033.mst | 3.6 KB | 2 Mar 2006 |
| 1041.mst | 341.5 KB | 2 Mar 2006 |
| 2052.mst | 309.8 KB | 2 Mar 2006 |
| ISScript.Msi | 993.8 KB | 21 Oct 2004 |
| setup.exe | 254.0 KB | 2 Mar 2006 |
| Setup.ini | 1.9 KB | 2 Mar 2006 |
| Setup.msi | 1.9 MB | 2 Mar 2006 |
| System32/Drivers/O2MDDISK.CAT | 7.5 KB | 28 Feb 2006 |
| System32/Drivers/O2MDDISK.INF | 886 bytes | 15 Mar 2005 |
| System32/Drivers/O2MEDIA.CAT | 8.0 KB | 28 Feb 2006 |
| System32/Drivers/O2MEDIA.INF | 1.7 KB | 27 Feb 2006 |
| System32/Drivers/o2media.sys | 34.9 KB | 27 Feb 2006 |
| System32/Drivers/O2MW2K.CAT | 8.7 KB | 10 Feb 2005 |
| System32/Drivers/O2MW2K.INF | 4.3 KB | 9 Feb 2005 |
| System32/Drivers/O2MWXP.CAT | 8.7 KB | 10 Feb 2005 |
| System32/Drivers/O2MWXP.INF | 4.3 KB | 9 Feb 2005 |
| System32/Drivers/O2SD.CAT | 7.9 KB | 23 Feb 2006 |
| System32/Drivers/O2SD.INF | 1.7 KB | 21 Feb 2006 |
| System32/Drivers/o2sd.sys | 29.1 KB | 20 Feb 2006 |
| System32/Drivers/O2SDDISK.CAT | 7.5 KB | 23 Feb 2006 |
| System32/Drivers/O2SDDISK.INF | 874 bytes | 15 Mar 2005 |
| System32/o2flash.exe | 36.9 KB | 27 Jan 2005 |
| System32/RMDevice.dll | 13.3 KB | 21 Jan 2005 |
| 0x0404.ini | 3.8 KB | 13 Apr 2004 |
| 0x0409.ini | 5.5 KB | 27 Jul 2004 |
| 0x0411.ini | 5.9 KB | 15 Apr 2004 |