Atto Celerity FC-81EN Driver Download (Official)

Atto Technology Drivers

The Celerity FC-81EN 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. Visitors have downloaded this file "winx64_drv_celerity8_134.exe" 66 times with an aggregate rating of 5 out of 5 stars based on 7 reviews. The uploader reports that this update will work successfully on PCs running Windows 7, Windows Vista and Windows XP. The total disk space used for this update is 1.1 MB.

7 Ratings

Supported Models

Celerity FC-81EN

ATTO Celerity FC-81EN Fibre Channel Adapter

ATTO Celerity FC-81EP Fibre Channel Adapter

ATTO Celerity FC-82EN Fibre Channel Adapter

ATTO Celerity FC-82ENM Fibre Channel Adapter

ATTO Celerity FC-82EP Fibre Channel Adapter

ATTO Celerity FC-84EN Fibre Channel Adapter



Supported Operating Systems

Windows 7 (64 bit), Windows 2008 (64 bit), Windows Vista (64 bit), Windows 2003 (64 bit), Windows XP (64 bit)

File Name



Additional Notes

Fibre Channel Host Bus Adapter Driver

Uploaded By

Gitanjali (DG Staff Member) on 5-Aug-2011

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
CLI/atfcnvr.exe 85.5 KB 27 Jul 2010
CLI/atflash.exe 100.9 KB 27 Jul 2010
CLI/atinfo.exe 74.3 KB 27 Jul 2010
Setup.exe 474.7 KB 17 Feb 2011
Storport/attofc.dll 142.9 KB 14 Jan 2011
Storport/attofc_x.dll 166.9 KB 14 Jan 2011
Storport/ 10.3 KB 30 Mar 2011
Storport/clrty8fc.inf 8.1 KB 30 Mar 2011
Storport/clrty8fc.sys 270.4 KB 30 Mar 2011
Storport/makedisk.bat 1.0 KB 3 Nov 2010
Storport/makedisk.exe 16.4 KB 15 Oct 2006
attofc.dll 142.9 KB 14 Jan 2011
attofc_x.dll 166.9 KB 14 Jan 2011 9.0 KB 30 Mar 2011
attomtln.inf 2.9 KB 8 Feb 2011
clrty8fc 48 bytes 2 Apr 2008 10.3 KB 30 Mar 2011
clrty8fc.inf 6.5 KB 30 Mar 2011
clrty8fc.sys 269.9 KB 30 Mar 2011
makedisk.bat 990 bytes 3 Nov 2010
makedisk.exe 16.4 KB 15 Oct 2006
txtsetup.oem 832 bytes 10 Apr 2009

How to Update Celerity FC-81EN Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Celerity FC-81EN 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-81EN 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

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

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.

This website is not affiliated with Atto. All company names/logos are properties of their owners.
server: web4, load: 0.46