... with USB interface Compliant with V.90,and V.42/V.42bis/MNP5 protocols Compliant with V.17,V.29 and V.27ter Group3 fax protocols ... : ITU-TV.92 , V.90 , V.34 , V.32bis , V.32 , V.22bis , V.22 , V.23 , V.21 , Bell212A , 103Fax protocol: V.17, V.29, V.27terandV.21Channel2 fax protocol ... error correct: V.42Operating temperature 0°C to 40°CStorage temperature -40°Cto 70°COperating Humidity 10% to 90% RH no ...