Multi-Tech Systems INTELLIGENT SERIAL INTERFACE ISI9234PCIE - Manual (Page 7)

ISI Quick Start Guide
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6. Searching disc for software…screen appears.
7. Windows can’t verify the publisher of this driver software screen appears.
Click Install.
8. When the software for this device has been successfully installed screen
appears, Windows has finished installing the driver software for this device:
Multi-Tech ISI5634UPCI/ISI9234PCIE 8 Port Analog Modem Card.
Click Close.