Atto Celerity FC-42XS Driver Download (Official)

Atto Technology Drivers

The Celerity FC-42XS 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_celerity_266.exe" - has been downloaded 18 times and is rated 5 out of 5 stars based on 6 reviews. 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 1.1 MB.

6 Ratings

Supported Models

Celerity FC-42XS

ATTO Celerity FC-21PS Fibre Channel Adapter

ATTO Celerity FC-22XH Fibre Channel Adapter

ATTO Celerity FC-22XS Fibre Channel Adapter

ATTO Celerity FC-24XL Fibre Channel Adapter

ATTO Celerity FC-24XS Fibre Channel Adapter

ATTO Celerity FC-41EL Fibre Channel Adapter

ATTO Celerity FC-41EN Fibre Channel Adapter



Supported Operating Systems

Windows 2008, Windows Vista, Windows 2003, Windows XP

File Name


2.66 (20-May-2009) (2008-03-25) via .inf (2009-05-11) via .inf

Additional Notes

Dual-Channel 4-Gb Fibre Channel PCI-X Host Adapter

Uploaded By

Sathishkumar (DG Staff Member) on 17-Aug-2009

How to Update Celerity FC-42XS Device Drivers

Step 1 - Download Your Driver

To get the Celerity FC-42XS 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 Celerity FC-42XS 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

After downloading your new driver, it's time to install it. For Windows users, the built-in Device Manager is your go-to tool for managing system devices and drivers. Here's how to use it:

  1. Right-click the Start button to open the Quick Access menu.

  2. Select "Device Manager" from the list of options.

  3. In the Device Manager window, locate the device that needs updating.

  4. Right-click on the device name and choose "Update driver" from the context menu.

  5. Follow the on-screen instructions to complete the installation process.

Once the installation is complete, restart your computer to ensure the new driver is properly integrated and functional.

This simple process helps keep your system running smoothly and maintains compatibility with your 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
Setup.exe 342.0 KB 18 Aug 2008
Storport/41XA/attofc.dll 142.9 KB 4 Nov 2008
Storport/41XA/clrtyfca 48 bytes 18 Jul 2006
Storport/41XA/ 11.1 KB 11 May 2009
Storport/41XA/clrtyfca.inf 3.9 KB 11 May 2009
Storport/41XA/clrtyfca.sys 315.9 KB 11 May 2009
Storport/41XA/makedisk.bat 989 bytes 11 Sep 2007
Storport/41XA/makedisk.exe 16.4 KB 15 Oct 2006
Storport/attofc.dll 142.9 KB 4 Nov 2008
Storport/ 11.1 KB 11 May 2009
Storport/clrtyfc.inf 9.0 KB 11 May 2009
Storport/clrtyfc.sys 315.9 KB 11 May 2009
Storport/makedisk.bat 986 bytes 11 Sep 2007
Storport/makedisk.exe 16.4 KB 15 Oct 2006
attofc.dll 142.9 KB 4 Nov 2008 10.3 KB 11 May 2009
attomtln.inf 2.3 KB 25 Mar 2008
clrtyfc 38 bytes 24 Nov 2003 11.1 KB 11 May 2009
clrtyfc.inf 9.8 KB 11 May 2009
clrtyfc.sys 317.0 KB 11 May 2009
makedisk.bat 965 bytes 15 Sep 2007
makedisk.exe 16.4 KB 15 Oct 2006
txtsetup.oem 1.4 KB 30 Apr 2009
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