Digi AccelePort® Xr 920. Host interface: PCI, Output interface: RS-422. Built-in processor: 32-bit IDT RISC. Operating temperature range (T-T): 10 - 55 °C, Storage temperature range (T-T): -25 - 85 °C, Operating relative humidity range: 5 - 95 %. Cables included: DB-25M. Compatible operating systems: -Microsoft Windows Server 2003 -Microsoft Windows XP -Microsoft Windows 2000 -Microsoft Windows NT