Bus Type: Pci Express 1.1 (2.5 Gt/s) With Low Profile Compatible With Pci-e 1x,4x,8x,16x Slot Support Windows 2003 Server/vista/virtual Server 2005,red Hat Enterprise Linux*4 Or Later,professional 9.2 Or Later,freebsd 5.x Or Later Support Pex To Serve Our Customers With Wider Range Of Products, We Are Committed To Offering Various Types Of Excellent Quality Fiber-optic Products To Fulfill Different Demands Of The Industry. If You Are Interested In Products Which Are Not Shown In Our Online Catalog, Please Let Us Know! Product Type: Gigabit Ethernet Card Network Technology: 10/100/1000base-t Host Interface: Pci Express Interfaces/ports: 1 X Rj-45 Features: Intel 82574l Gigabit Ethernet Controller: High Performance And Reliability; Low Power Data Rate Supported Per Port: 10, 100 1,000 Mbps Bus Type: Pci Express 1.1 (2.5 Gt/s) Bus Width: X1 Lane Pci Express Operable In X1, X4, X8, X16 Slots Bus Speed (x1, Encoded Rate): 2.5 Gbps Uni-directional; 5 Gbps Bi-directional Connectors: Rj-45 Interrupt Levels: Int