JMicron JMB380 Driver Download

JMicron Drivers

The JMB380 is a network device manufactured by JMicron. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. Visitors have downloaded this file "" 42 times with an aggregate rating of 4 out of 5 stars based on 2 reviews. The uploader reports that this update will work successfully on PCs running Windows 7, Windows Vista and Windows XP. The total disk space used for this update is 997.6 KB.

2 Ratings

Supported Models


JMB38X MS Host Controller

JMB38X SD Host Controller

JMB38X SD/MMC Host Controller

JMB38X xD Host Controller



Supported Operating Systems

Windows 7, Windows Vista, Windows XP

File Name


R1.00.29 (22-May-2009) (2009-05-18) via .inf

Additional Notes

JMB38X Product Family

PCI Express to 1394a OHCI and Memory Card Host Controller Driver File

Uploaded By

Sathishkumar (DG Staff Member) on 15-Dec-2009

How to Update JMB380 Device Drivers

Step 1 - Download Your Driver

To get the JMB380 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 JMicron JMB380 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 JMicron Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the JMicron website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

After downloading your new driver, it's time to install it. For Windows users, the built-in Device Manager is your go-to tool for managing system devices and drivers. Here's how to use it:

  1. Right-click the Start button to open the Quick Access menu.

  2. Select "Device Manager" from the list of options.

  3. In the Device Manager window, locate the device that needs updating.

  4. Right-click on the device name and choose "Update driver" from the context menu.

  5. Follow the on-screen instructions to complete the installation process.

Once the installation is complete, restart your computer to ensure the new driver is properly integrated and functional.

This simple process helps keep your system running smoothly and maintains compatibility with your hardware components.

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
JMB38X_WinDrv_R1.00.29_WHQL/Application/DIFxAPI.dll 319.5 KB 2 Nov 2006
JMB38X_WinDrv_R1.00.29_WHQL/Application/setup.dll 73.7 KB 24 Feb 2009
JMB38X_WinDrv_R1.00.29_WHQL/Application/x64/DIFxAPI.dll 525.8 KB 2 Nov 2006
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/JmCR.sys 119.3 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/JmCrIcon.dll 110.1 KB 14 May 2008
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/ 94.1 KB 20 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/jmcr_jm.inf 124.7 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/jmcr_sda.inf 125.1 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x32/jmcr_to.inf 5.3 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/JmCR.sys 143.3 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/JmCrIcon.dll 110.1 KB 14 May 2008
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/ 94.2 KB 20 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/jmcr_jm.inf 124.7 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/jmcr_sda.inf 125.1 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Driver/x64/jmcr_to.inf 5.3 KB 18 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/Setup.exe 1.2 MB 22 Apr 2009
JMB38X_WinDrv_R1.00.29_WHQL/setup.ini 2.8 KB 22 May 2009
JMB38X_WinDrv_R1.00.29_WHQL/silentsetup.bat 31 bytes 23 Feb 2009
This website is not affiliated with JMicron. All company names/logos are properties of their owners.
server: web3, load: 0.52