Koutech IO-PU520 Driver Download (Official)

Koutech Drivers

The IO-PU520 is a USB device manufactured by Koutech. This driver can help resolve issues like USB device not recognized, "Disk Not Formatted" errors, or if your device randomly ejects or stops working. This driver - "IO-PU520.zip" - has been downloaded 246 times and is rated 5 out of 5 stars based on 12 reviews. Compatibility for this driver update includes PCs running Windows operating systems such as Windows XP. The total disk space used for this update is 1.6 MB.

Koutech IO-PU520 Automatic Driver Update Utility
12 Ratings

Supported Models


ACDC USB 2.0 Host Controller

APC USB 2.0 Host Controller

ATEN USB 2.0 Host Adapter

BUSlink USB 2.0 Host Controller

CardBus to USB 2.0 Enhanced Host Controller

DC-602B/T PCI to USB Enhanced Host Controller

EIO USB 2.0 Host Controller


Supported Operating Systems

Windows XP, Windows 2000, Windows ME, Windows 98SE

File Name

Additional Notes


USB Driver File

Uploaded By

Sivaprakash (DG Staff Member) on 12-Jan-2006

How to Update IO-PU520 Device Drivers

Step 1 - Download Your Driver

To get the IO-PU520 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 Koutech IO-PU520 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 Koutech Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

After downloading the new driver, proceed with installation. On Windows, use the built-in Device Manager utility to manage your system's devices and drivers. To access it:

  1. Right-click the Start button

  2. Select "Device Manager" from the menu

  3. Locate the device needing the update

  4. Right-click the device and choose "Update driver"

  5. Follow the on-screen prompts to install

Once complete, restart your computer to ensure the new driver is fully implemented and functioning properly.

This process helps maintain your system's performance and compatibility with various 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
DriverInfo.txt 186 bytes 10 Jan 2002
uPD720100/Nehcd.inf 11.9 KB 1 Jan 2002
uPD720100/ReadMe.doc 5.6 KB 1 Jan 2002
uPD720100/USB2DriverWinMe.pdf 1.1 MB 1 Jan 2002
uPD720100/USB2DriversWin98.pdf 1.0 MB 1 Jan 2002
uPD720100/install.txt 402 bytes 1 Jan 2002
uPD720100/nehcd.sys 34.4 KB 1 Jan 2002
uPD720100/nusb2hub.sys 29.4 KB 1 Jan 2002
uPD720100/nusbd.sys 32.5 KB 1 Jan 2002
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