Model: HSP Riser
Operating System: Windows 98 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
HSP HSP Riser Driver. I could only connect at 28000 with the driver that came with my HSP Riser until I add to the modem initialization string the following.File Contents:
Now connecting at x2 at 115200
Best connection I have ever had.