CG0079B Expands the AT command set Offers fast connection and stable performance Bus-powered Supports auto-dialing， tone/ pulse dialing， auto answer， auto-send and receive fax Supports caller ID， automatic format/ speed sensing， data/ fax/ voice calls， transfer/backward call  The single configuration files are stored in the host Meet the V.92， V.90， V.42， V.42bis/MNP5， V.17， V.29 protocol and V.27ter fax protocol Supports Windows 98/ 2000/ ME/ XP/ CE5.0 Interface: USB 2.0 A Max Data Download Speed: Up to 56Kb/s Data Upload Speed: 48Kb/s Fax Speed: 14.4 Kb/s Telephone Line Connection Port: RJ11 Voltage: 5 V Package Details Weight: 115.56 g Size: 15*11*3.5 cm Package Includes * Modem * Connection Cable * Disk