Atto ExpressPCI UL4S Driver Download (Official)
The ExpressPCI UL4S is a disk drive controller manufactured by Atto Technology. This driver fixes problems with drive not found, slow or unreliable data transfer, intermittent connection or hardware conflicts. This driver - "winx86_drv_epciu320_311.exe" - has been downloaded 50 times and is rated 5 out of 5 stars based on 6 reviews. It is compatible with PCs running Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 404.0 KB.
Supported Models
ExpressPCI UL4S
ATTO Empty LUN
ATTO ExpressPCI 4DRO SCSI Adapter
ATTO ExpressPCI 4SRO SCSI Adapter
ATTO ExpressPCI 5DRO LP SCSI Adapter
ATTO ExpressPCI 5DRO SCSI Adapter
ATTO ExpressPCI UL4D SCSI Adapter
ATTO ExpressPCI UL4S SCSI Adapter
Manufacturers
Supported Operating Systems
Windows 2008, Windows Vista, Windows 2003, Windows XP, Windows 2000
File Name
winx86_drv_epciu320_311.exe (404.0 KB)
Versions
3.11 (26-Sep-2008)
3.11.2.0 (2008-09-22) via .inf
1.50.2.0 (2008-03-25) via .inf
Additional Notes
Single-Channel Full-Height Ultra320 SCSI PCI-X Host Adapter
Uploaded By
Sathishkumar (DG Staff Member) on 14-Aug-2009
Related Driver Updates
How to Update ExpressPCI UL4S Device Drivers
Step 1 - Download Your Driver
To get the ExpressPCI UL4S 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 Atto ExpressPCI UL4S 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 Atto 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 Atto website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
To install your new driver on Windows:
Right-click the Start button.
Click "Device Manager">
Find your device in the list.
Right-click the device and select "Update driver"
Follow the steps on screen.
Restart your computer when done.
This keeps your computer working at its best.
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 |
|---|---|---|
| Setup.exe | 342.0 KB | 18 Aug 2008 |
| Storport/express2.cat | 9.6 KB | 22 Sep 2008 |
| Storport/express2.inf | 4.8 KB | 22 Sep 2008 |
| Storport/express2.sys | 83.0 KB | 22 Sep 2008 |
| Storport/makedisk.bat | 959 bytes | 1 Apr 2008 |
| Storport/makedisk.exe | 16.4 KB | 15 Oct 2006 |
| attomtln.cat | 9.2 KB | 22 Sep 2008 |
| attomtln.inf | 2.3 KB | 25 Mar 2008 |
| express2 | 41 bytes | 12 Jan 2005 |
| express2.cat | 9.6 KB | 22 Sep 2008 |
| express2.inf | 4.8 KB | 22 Sep 2008 |
| express2.sys | 82.5 KB | 22 Sep 2008 |
| makedisk.bat | 939 bytes | 21 Nov 2007 |
| makedisk.exe | 16.4 KB | 15 Oct 2006 |
| txtsetup.oem | 782 bytes | 27 Jun 2006 |