Trust 56K V92 USB Modem. Modem speed: 56 Kbit/s, Type: External fax/modem. Data link protocols: V92. Minimum hard disk space: 20 MB, Minimum system requirements: USB port (free), Analog telephone line, CD-ROM drive, Minimum processor: Pentium 200MHz MMX. Dimensions (WxDxH): 100 x 24 x 48 mm