Detailed Product Description Description:56k Internal FAX Modem Newly-Designed Internal Data/Fax Modem ... Data modem l ITU-T V.92,V.90,K56flex,V.34,V.32 bis,V.32,V.22 bis,V.22,V.23,and V.21;Bell 212A and ... MNP 2-4 error correction Fax modem l V.17,V.29,V.27ter,and V.21 l EIA/TIA 578 Class 1 ... external components +5V to +3.3V,and voltage regulator PCI+5V,PCI+3.3V,and Vatu +3.3V power switching circuit l ...