Trust 56K PCI Modem MD-1100. Modem speed: 56 Kbit/s, Interface: PCI, Type: PCI Modem. Data link protocols: V.92. Minimum system requirements: Intel Pentium II and higher One free PCI slot Analogue telephone connection . Dimensions (WxDxH): 120 x 120 x 20 mm. Package dimensions (WxDxH): 175 x 35 x 145 mm