Digi AccelePort Xp Universal PCI 16-port. Host interface: PCI. Weight: 0.19 kg. Operating temperature range (T-T): 10 - 55 °C, Storage temperature range (T-T): -25 - 85 °C, Operating relative humidity range: 5 - 90 %. Minimum system requirements: PCI 2.3, Dimensions (WxDxH): 106.7 x 119.9 mm, Compatible operating systems: Microsoft Windows Server 2003 Microsoft Windows XP Microsoft Windows 2000 Microsoft Windows NT