... such as Windows98, Windows ME, Windows2000, WindowsXP, etc.. It supports data compressing protocol V.90 (56 Kbps), V.34 (33.6 Kbps ... . DTC rate is up to 115,200 Kbps.Support MNP5 data compresses protocol to make transfer more efficient.Set specified commands 100 ... -lightening circuit to strengthen its anti-thunder function. Technical Parameters:Data protocol: ITU-T V.92, V.90, V.34, V.32 ...