Host Interface: PCI Express x2Total Number of Ports: 2Number of Network (RJ-45) Ports: 2Media Type Supported: Twisted PairNetwork Technology: 10/100/1000Base-TForm Factor: Plug-in CardWidth: 2.7"Depth: 4.3"Device Supported: ServerEnvironmentally Friendly: YesEnvironmental Certification: RoHSThis product is New, Factory Sealed, and Guaranteed Authentic - The Broadcom 5720 Dual-Port Gigabit NIC from Dell™ is responsible for connecting your desktop and server to your network. It features dual triple-speed IEEE 802.3-compliant Media Access Controllers (MACs) with dual 10/100/1000 Ethernet transceivers (PHYs), PCI Express bus interface, and on-chip memory buffer in a single device. It"s based on the Broadcom BCM5720 Controller.It is supported by Dell Technical Support when used with a Dell system.