... 56k Data/Fax modem with USB interface 2.V.90 and V.42/V.42bis/MNPS protocols 3.Use ... Data/Fax modem with USB interface2. Compliant with V.90 and V.42/V.42bis/MNPS protocols3. Compliant with ... Speed56KbData Mode Capabilities:ITU T V.92, 56KbpsITU T V.90, 56KbpsITU T V.34, 33600 to 2400 bpsITU T V.32bis, V. ... 32ITU T V.22bis,V.22ITU T V. ...