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. This version of "winx64_drv_mpdirector_121.exe" is rated (5 out of 5 stars) based on 23 downloads and 9 reviews. It is compatible with PCs running Windows 7, Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 2.5 MB.
Celerity FC-81EN
Celerity FC-82EN
Celerity FC-84EN
Windows 7 (64 bit), Windows Vista (64 bit), Windows XP (64 bit)
winx64_drv_mpdirector_121.exe (2.5 MB)
1.21
Fibre Channel Host Bus Adapter Driver
Gitanjali (DG Staff Member) on 5-Aug-2011
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.
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:
Right-click the Start button
Select "Device Manager" from the menu
Locate the device needing the update
Right-click the device and choose "Update driver"
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.
The following files are found inside the driver download file.
Name | Size | Date |
---|---|---|
attobus.msi | 2.8 MB | 17 Feb 2011 |
setup.exe | 390.7 KB | 17 Feb 2011 |