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 "JMB38X_WinDrv_R1.00.21_WHQL.zip" 44 times with an aggregate rating of 4 out of 5 stars based on 2 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 808.7 KB.
JMB380
Windows 7, Windows Vista, Windows XP
JMB38X_WinDrv_R1.00.21_WHQL.zip (808.7 KB)
R1.00.21 (1-Dec-2008)
1.00.21.02 (2008-10-27) via .inf
JMB38X Product Family
PCI Express to 1394a OHCI and Memory Card Host Controller Driver File
Sathishkumar (DG Staff Member) on 15-Dec-2009
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.
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.
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| JMB38X_WinDrv_R1.00.21_WHQL/Application/DIFxAPI.dll | 319.5 KB | 2 Nov 2006 |
| JMB38X_WinDrv_R1.00.21_WHQL/Application/JMInsDrv.exe | 10.2 KB | 23 Sep 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Application/res/x32/JmCrIcon.dll | 110.1 KB | 14 May 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Application/res/x64/JmCrIcon.dll | 109.6 KB | 14 May 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Application/x64/DIFxAPI.dll | 525.8 KB | 2 Nov 2006 |
| JMB38X_WinDrv_R1.00.21_WHQL/Application/x64/JMInsDrv.exe | 10.2 KB | 23 Sep 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x32/JmCR.sys | 107.4 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x32/jmcr.cat | 73.2 KB | 10 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x32/jmcr.inf | 95.9 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x32/jmcr_ns.inf | 94.9 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x64/JmCR.sys | 128.9 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x64/jmcr.cat | 73.2 KB | 10 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x64/jmcr.inf | 95.9 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Driver/x64/jmcr_ns.inf | 94.9 KB | 3 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/Setup.exe | 1.1 MB | 31 Oct 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/setup.ini | 2.9 KB | 11 Nov 2008 |
| JMB38X_WinDrv_R1.00.21_WHQL/silentsetup.bat | 12 bytes | 25 Jun 2007 |