Mecer AHA-2940W Driver Download (Official)

Mecer Drivers

The AHA-2940W is a device manufactured by Mecer. You can unlock features and improve performance by updating its driver. This version of "" has been downloaded 58 times with a user rating of 5 out of 5 stars, based on 10 reviews. The total disk space used for this update is 316.1 KB.

10 Ratings

Supported Models


Adaptec AIC-755x PCI SCSI Controller

Adaptec AHA-2930CU PCI SCSI Controller

Adaptec AHA-2930UW PCI SCSI Controller

Adaptec AHA-2940/AHA-2940W PCI SCSI Controller

Adaptec AHA-2940AU PCI SCSI Controller

Adaptec AHA-2940U/AHA-2940UW PCI SCSI Controller

Adaptec AHA-2940U/UW Dual/AHA-394xAU/AUW/AUWD PCI SCSI Controller




Supported Operating Systems

Not Applicable

File Name

Additional Notes


Add On Cards Controllers for Pci Bus

Card Controller Driver file

Uploaded By

Jegadesh (DG Staff Member) on 7-May-2007

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
DISK1 33 bytes 31 Dec 1994
README.TXT 576 bytes 9 Dec 1998
TXTSETUP.OEM 1.2 KB 6 Jul 1998
WIN9X/ADPINSTR.VXD 17.6 KB 20 Dec 1996
WIN9X/AIC78U2.MPD 89.6 KB 24 Nov 1998
WIN9X/AIC78XX.CAT 33 bytes 31 Aug 1998
WIN9X/AIC78XX.INF 13.3 KB 15 Jan 1999
WIN9X/AIC78XX.MPD 76.3 KB 18 Jan 1999
WIN9X/README95.TXT 16.8 KB 6 Jan 1999
WIN9X/README98.TXT 14.3 KB 6 Jan 1999
WINNT/3_5/AIC78U2.SYS 81.7 KB 24 Nov 1998
WINNT/3_5/AIC78XX.SYS 69.6 KB 18 Jan 1999
WINNT/3_5/OEMSETUP.INF 15.9 KB 17 Jul 1998
WINNT/4_0/AIC78U2.SYS 82.1 KB 24 Nov 1998
WINNT/4_0/AIC78XX.SYS 70.0 KB 18 Jan 1999
WINNT/4_0/OEMSETUP.INF 16.8 KB 6 Jul 1998
WINNT/README.TXT 33.8 KB 6 Jan 1999

How to Update AHA-2940W Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the AHA-2940W 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 Mecer AHA-2940W 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 Mecer 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 Mecer 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 Mecer. All company names/logos are properties of their owners.
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