Data/Fax USB Modem 1.56k 2.Prevent surge-damaged, 3. ... 4.Win98,WinME,WinNT,Win2000 WinXP,VIST,WIN7and Linux. 56k Data/Fax soft Modem 1.Support to ITU T V.92 ... (3C), FCC and CE, youcan use it safety and stably. Data mode capabilities:ITU T V.92, 56KbpsITU T V.90 ... correction (LAPM and MNP)V.42bis and MNP class 5 data compressionOperating system support: Windows 98, ME, NT,2000, XP, Vista ...