Adaptec DuoConnect Adapter AUA-3121 - Manual (Page 15)

6
Installing the Windows Drivers
3 Select Don’t search, I will choose the driver to install, then
click Next.
4 Click Next again.
5 Click Have Disk.
6 Insert the Adaptec USB2connect CD into the CD-ROM drive.
Type the drive letter for your CD-ROM drive in the
Copy
manufacturer’s files from box, as shown below, and click OK.
Note: Your CD-ROM drive may have a different drive letter
than the one shown in the example above.