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Driver Details

O2Micro OZ77Cxx USB SmartCard Controller, v.1139, A02
O2Micro OZ77Cxx USB SmartCard Driver for 32-Bit (XP/2K, Vista)
Release Date 6/28/2007
Importance: Optional
Version: 1139,A02

The following formats are available for the file you have selected

Previous Versions

No previous version available.


O2Micro OZ77Cxx USB SmartCard Driver for 32-Bit (XP/2K, Vista)

Level of Importance:Optional

Dell recommends the customer review specifics about the update to determine if it applies to your system. The update contains changes that impact only certain configurations, or provides new features that may/may not apply to your environment.


Latitude D420
Latitude D430
Latitude D531
Latitude D620
Latitude D620 ATG
Latitude D630
Latitude D630 ATG
Latitude D631
Latitude D820
Latitude D830
Precision M4300
Precision M65
Precision M90
XPS M1710 (MXG061, Early 2006)
Operating Systems
MS Windows Vista 32-bit
MS Windows 2000
MS Windows XP

Applies to

  • OZ77Cxx USB SmartCard Controller

Fixes & Enhancements

Made improvements in resume times

Installation instructions

Hard Drive Installation (via WinZip) with Setup.exe File for R153770.EXE


1.Click Download Now, to download the file.
2.When the File Download window appears, click Save (Windows XP 
users will click Save) this program to disk and click OK.  The Save In: 
window appears. 
3.From the Save In: field, click the down arrow then click to 
select Desktop and click Save.  The file will download to your desktop.
4.If the Download Complete window appears, click Close.  The file 
icon appears on your desktop.


1.Double-click the new icon on the desktop labeled R153770.EXE.
2.The Self-Extracting window appears and prompts you to extract or 
unzip to C:\DELL\DRIVERS\R153770. Write down this path so the executable (I.e. 
Setup.exe) file can be found later.
3.The Self-Extractor window appears.
4.Click OK.
5.After completing the file extraction, if the Self-Extractor 
window is still open, close it.
6.Click the Start button and then click Run.
7.Type C:\DELL\DRIVERS\R153770 in the Open textbox and then click OK.
8.Follow the on-screen installation instructions.            


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