Atto ExpressPCI UL5D LP Driver Download (Official)

Atto Technology Drivers

The ExpressPCI UL5D LP 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 update - "winx86_drv_epciu320_311.exe" - has an average rating of 5 out of 5 stars based on 3 reviews, and has been downloaded 24 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 404.0 KB.

Atto ExpressPCI UL5D LP Automatic Driver Update Utility
3 Ratings

Supported Models

ExpressPCI UL5D LP


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



Supported Operating Systems

Windows 2008, Windows Vista, Windows 2003, Windows XP, Windows 2000

File Name


3.11 (26-Sep-2008) (2008-09-22) via .inf (2008-03-25) via .inf

Additional Notes

Dual-Channel Low-Profile Ultra320 SCSI PCIe Host Adapter

Uploaded By

Sathishkumar (DG Staff Member) on 14-Aug-2009

How to Update ExpressPCI UL5D LP Device Drivers

Step 1 - Download Your Driver

To get the ExpressPCI UL5D LP 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 UL5D LP 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

  1. Open a tool called Device Manager.

  2. Use Device Manager to put the new driver on your computer.

  3. Turn your computer off.

  4. 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
Setup.exe 342.0 KB 18 Aug 2008
Storport/ 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 9.2 KB 22 Sep 2008
attomtln.inf 2.3 KB 25 Mar 2008
express2 41 bytes 12 Jan 2005 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
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