The 4 Gb Fibre Channel Host Bus Adapter is a dual channel (HBA) with and optical LC type connector. Operating system support for this HBA is Windows 2003, Windows Server 2003, and Linux. This HBA is qualified for ProLiant platforms configured with the Enterprise Virtual Array 3000, 4000, 5000, 6000 and 8000, MSA1000, MSA1500 and XP array offerings. For supported Fibre Channel SAN Switches, please consult the SAN Design Reference Guide at the following WEB address: http://h18006.www1.hp.com/products/storageworks/san/documentation.html