There is nothing special about the SE440BX-2 board (which I also own) necessitating 3rd party USB drivers. Everything you need to support USB is on the Windows 95 2.5 CD. Windows 95 doesn’t support USB out of the box no matter which version used, though. Right after installation, you need to install the USB supplement package, which is more like an OS upgrade rather than a simple driver update, hence part of the 2.5 release. I think it’s inside the “OTHER” directory or “ADMIN” on the CD. I can’t remember the exact directory. The file is called USBSUPP.EXE. The same directory contains one more patch to apply after USBSUPP.EXE is applied, post reboot. If you had the 2.1 CD, this patch wouldn’t be present.
You might have to reinstall if the OS was modified by the other package you installed. Adding USB support to Windows 95 is very methodical, and often wouldn’t install or would wreck the install completely if the environment wasn’t pristine.
If you want USB flash drive support, then you need a 3rd party driver.
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