... such as Windows98, Windows ME, Windows2000, WindowsXP, etc.. It supports data compressing protocol V.90 (56 Kbps), V.34 (33 ... featuring high-efficiency data transfer. Main features:External USB56 K Modem, no need for externally-connected power supply, supporting hot ... MNP5Command system: EIA/ TIA 578 Classes 1, compatible to Hays AT commands group.Flow control way: Software (XON/XOFF) or hardware ( ...