Fujitsu Modem 56k USB, 56 Kbit/s, USB 1.1, Pegasus Discrete DAA, 56, 33.6, 28.8, 14.4 Mbps, V.44, V.42bis, MNP 5, Windows XP Fujitsu Modem 56k USB. Modem speed: 56 Kbit/s, Interface: USB 1.1, Chipset: Pegasus Discrete DAA. Supported data transfer rates: 56, 33.6, 28.8, 14.4 Mbps, Data compression: V.44, V.42bis, MNP 5. Compatible operating systems: Windows XP. Weight: 250 g, Depth: 28 mm, Height: 28 mm