USB-SERIAL CH340 Driver
USB-SERIAL CH341 Driver
USB-SERIAL CH341A Driver
Windows 10, Windows 10 (64 bit), Windows 8.1, Windows 8.1 (64 bit), Windows 8, Windows 8 (64 bit), Windows 7, Windows 7 (64 bit), Windows 2008, Windows 2008 (64 bit), Windows Vista, Windows Vista (64 bit), Windows 2003, Windows 2003 (64 bit), Windows XP, Windows XP (64 bit), Windows 2000, Windows ME, Windows 98SE, Windows 98
CH341_USB_to_Serial.zip (258.5 KB)
This came from the driver CD that came with a cheap CH341 based USB to Serial adapter that had numerous other drivers on the CD as well. This is the correct driver for the serial adapter, and it includes drivers for Windows 7 x64. It also seems to have drivers for Windows 98, 2000, XP, 2003, Vista, and Server 2008 as well.
JacobGRocks (DG Member) on 24-Jul-2016
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The following files are found inside the driver download file.
|CH341 USB to Serial/CH340IR.EXE||149.2 KB||15 Apr 2012|
|CH341 USB to Serial/CH341PT.DLL||6.7 KB||29 Jul 2005|
|CH341 USB to Serial/CH341S64.SYS||58.4 KB||2 Jun 2009|
|CH341 USB to Serial/CH341S98.SYS||19.7 KB||11 Jun 2007|
|CH341 USB to Serial/CH341SER.INF||6.7 KB||24 Aug 2010|
|CH341 USB to Serial/CH341SER.SYS||39.6 KB||2 Jun 2009|
|CH341 USB to Serial/CH341SER.VXD||20.1 KB||17 Dec 2008|
|CH341 USB to Serial/INSTALL/#U6a21#U5757#U8c03#U8bd5.EXE||151.6 KB||28 Dec 2005|
|CH341 USB to Serial/INSTALL/DLL_LIB/CH341PT.BAS||3.1 KB||29 Jul 2005|
|CH341 USB to Serial/INSTALL/DLL_LIB/CH341PT.H||2.8 KB||29 Jul 2005|
|CH341 USB to Serial/INSTALL/DLL_LIB/CH341PT.LIB||5.6 KB||29 Jul 2005|
|CH341 USB to Serial/INSTALL/DLL_LIB/CH341PT.PAS||2.9 KB||29 Jul 2005|
|CH341 USB to Serial/INSTALL/README.TXT||10.3 KB||23 Sep 2007|
|CH341 USB to Serial/SETUP.EXE||65.5 KB||1 Sep 2010|
|CH341 USB to Serial/ch341SER.CAT||9.7 KB||26 Aug 2010|
To get the USB-SERIAL CH340 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 USB-SERIAL CH340 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 USB-SERIAL CH340. It is a software utility which automatically finds and downloads the right driver.
Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.
In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager
In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager
In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager
In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager
In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
Click the Update Driver button and follow the instructions.
In most cases, you will need to reboot your computer in order for the driver update to take effect.
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.