1.56k Data/Fax soft Modem 2.External wireless 3.desktop& laptop use 4.OEM and ODM orders are welcome This product is a 56k Data/Fax soft Modem which is support to ITU T V.92. It adopted the technology of Motorola Modem, and we optimize it based on the condition of China. This Modem can be used in the following Operating System: Windows98, Windows ME,Windows NT, Windows 2000 Windows XP,VIST,WIN7 ...