Quatech ESU2-400 Driver Download (Official)
Download the latest version of the ESU2-400 driver for your computer's operating system. This update - "usb720.zip" - has an average rating of 5 out of 5 stars based on 8 reviews, and has been downloaded 76 times. The uploader reports that this update will work successfully on PCs running Windows Vista and Windows XP. The total disk space used for this update is 134.7 KB.
Supported Models
ESU2-400
DSU-100 Dual RS-232 Serial Ports
DSU-200/300 Dual RS-422/485 Serial Ports
DSU2-100 Dual RS-232 Serial Ports
DSU2-400 Dual RS-232/422/485 Serial Ports
ESU-100 Eight RS-232 Serial Ports 1-4
ESU-100 Eight RS-232 Serial Ports 5-8
ESU-200/300 Eight RS-422/485 Serial Ports 1-4
Manufacturers
Supported Operating Systems
Windows Vista, Windows XP, Windows 2000
File Name
Versions
7.207.20 (2007-03-05) via .inf
Additional Notes
ESU2-400
USB Serial Adapters
Driver File
Uploaded By
Karthikkumar (DG Staff Member) on 11-Dec-2008
Related Driver Updates
How to Update ESU2-400 Device Drivers
Step 1 - Download Your Driver
To get the ESU2-400 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 Quatech ESU2-400 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 Quatech ESU2-400. It is a software utility which automatically finds and downloads the right driver.
Step 2 - Install Your 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.
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| QTUSBBX2.INF | 9.4 KB | 5 Mar 2007 |
| QTUSBPT2.INF | 4.4 KB | 5 Mar 2007 |
| cocpyinf.dll | 22.0 KB | 16 Apr 2003 |
| history.txt | 19.3 KB | 5 Mar 2007 |
| qtucombx.sys | 103.3 KB | 5 Mar 2007 |
| qtucomco.dll | 15.4 KB | 5 Mar 2007 |
| qtucompp.dll | 43.5 KB | 25 Jan 2007 |
| qtucompt.sys | 57.9 KB | 5 Mar 2007 |
| qtusbbx2.cat | 15.0 KB | 12 Mar 2007 |
| qtusbpt2.cat | 12.4 KB | 12 Mar 2007 |
| qtwdmlib.sys | 17.9 KB | 23 May 2005 |
| readme.txt | 10.4 KB | 24 Aug 2006 |