56k usb conexant modem

1) 56K external fax modem 2) Conexant chipset 3) Data modulation rate: a) V. 34bis, V. 34+, ITU-T V. 34 b) V. 32bis, V. 32, V. 22bis, V. 22 and Bell 212A c) ITU-T V. 23, V. 21 and Bell 103 4) Transmission: 56000, 33600, 31200, 28800, 24000, 14400, 12000, 9600, 7200, 4800, 1200, 1200/75 and 300bps 5) Voice mode: remote / local record and play back voice 6) Computer interface: PCI bus and plug-and-play 7) Data compression: ITU-T V. 42bis and MNP 5 8) Error correction: ITU-T V. 42 and MNP 2, 3, and 4 9) Advanced power management support specifications: ITU-T V.92,V.90,K56flex,V.34,V.32 bis,V.32,V.22 bis,V.22,V.23,and V.21;Bell 212A and Bell 103 Compatible with Windows 98 / 2000 / XP / ME / NT4.0 vista/windows