Comtrol RocketPort Infinity Octa PCIX UPCI 8 Port RJ45F RS-232/422/485 Model 30002-1 Type: Serial Header Adapter Operating Systems Supported: Linux Microsoft® Windows® 7 Microsoft® Windows® 2008 Server Microsoft® Windows® Vista Microsoft® Windows Server® 2003 Microsoft® Windows® XP Microsoft® Windows NT® 4.0 (Legacy) Microsoft® Windows® 2000 (Legacy) Dimensions: 2.6 Height x 4.7 Width