New 56K V.92/V.90 External USB Fax Modem
ITU-T V.90/V.92; 115.2Kbps DTE baud rate * Full-duplex 56Kbps/data/fax * ITU-T V.42 and MNP 2-4 data error Correction * V4.2 bit and MNP5 data compression protocol * Enhanced AT command set