Siig AP-40 SCSI Pro Driver Download (Official)

Download the latest version of the AP-40 SCSI Pro driver for your computer's operating system. This driver - "AP40_SCSI_Pro_All_v3.0656a.exe" - has been downloaded 481 times and is rated 4 out of 5 stars based on 15 reviews. It has been installed successfully by our users on PCs running Windows XP. The total disk space used for this update is 154.5 KB.

15 Ratings (see all reviews)

Supported Models

AP-40 SCSI Pro

SIIG AP-20 SCSI Pro PCI Adapter

SIIG AP-40 SCSI Pro PCI Adapter



Supported Operating Systems

Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95, DOS

File Name



Additional Notes

AP-40 SCSI Pro

Ultra Wide SCSI host adapter for Pentium or equivalent computers

Affordable Ultra Wide SCSI interface upgrade solution for PC computers

Supports up to 15 SCSI devices and burst data transfer rates up to 40MB/sec. Achieves optimum performance from data storage, multimedia, and other SCSI device

Works with various types of Ultra Wide/Ultra SCSI and fast SCSI-2 devices including hard disks, CD-R/RW drives, scanners, removable/MO drives and more

Uploaded By

Andrews (DG Staff Member) on 8-Sep-2004

Ratings & Reviews

See all Siig AP-40 SCSI Pro ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
DOS/ASPIUW.SYS 11.7 KB 13 Sep 2001
DOS/Readme.txt 400 bytes 14 Sep 2001
DOS/SIIGCD.SYS 9.9 KB 13 Sep 2001
DOS/SIIGMO.SYS 12.9 KB 13 Sep 2001
Netware/AEC671X.DSK 17.8 KB 18 Sep 1997
Netware/README.TXT 2.9 KB 29 Oct 1997
NW5/AEC671X.DDI 3.7 KB 21 Jan 2000
NW5/Aec671x.ham 28.3 KB 21 Jan 2000
OS2/OS2671X.DDP 147 bytes 19 Sep 1997
OS2/Os2671x.add 8.2 KB 24 Jan 2000
SCOUNIX/AEC671X.TAR 73.7 KB 11 Apr 2000
Win2000/SC247XU.SYS 14.9 KB 13 Sep 2001
Win2000/Sc247xu.inf 3.9 KB 13 Sep 2001
Win95/Sc247xu.inf 2.2 KB 14 Sep 2001
Win95/Sc247xu.mpd 18.4 KB 13 Sep 2001
Win98/Sc247xu.inf 2.2 KB 14 Sep 2001
Win98/Sc247xu.mpd 18.4 KB 13 Sep 2001
WinMe/Sc247xu.inf 2.2 KB 14 Sep 2001
WinMe/Sc247xu.mpd 18.4 KB 13 Sep 2001
WINNT/SC247XU.SYS 16.5 KB 13 Sep 2001
WINNT/Sc247xu.inf 16.5 KB 13 Sep 2001
WinXP/SC247XU.SYS 14.9 KB 13 Sep 2001
WinXP/Sc247xu.inf 3.9 KB 13 Sep 2001
TXTSETUP.OEM 1.4 KB 13 Sep 2001

How to Update AP-40 SCSI Pro Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the AP-40 SCSI Pro 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 Siig AP-40 SCSI Pro 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 Driver Update Utility for Siig AP-40 SCSI Pro. It is a software utility which automatically finds and downloads the right driver.

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 Siig. All company names/logos are properties of their owners.
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