1、Applicable to a variety of places, as you like (office, Internet cafe, monitoring, data server, etc.). 2、For Intel 82576 master chip. 3、Support multiple systems: for Windows Server 2008, Windows Vista SP2, etc. 4、Dual port 1 Gbps SFP network card, high speed network, fully meet your needs. 5、Gold-plated PCI-E interface, stable and durable. Features: 1. Applicable to a variety of places, as you like (office, Internet cafe, monitoring, data server, etc.). 2. For Intel 82576 master chip. 3. Support multiple systems: for Windows Server 2008, Windows Vista SP2, etc. 4. Dual port 1 Gbps SFP network card, high speed network, fully meet your needs. 5. Gold-plated PCI-E interface, stable and durable. Specification: Product name: E1G42EF-SFP Controller Processor: for Intel 82576 Gigabit Ethernet Controller Ethernet Controller(s): for Intel 82576 Connector & Cable Medium: SFP+ x 2 Interface Type: Slot Type, Maximum Bus: PCI Express* 2.0 2.5 GT/s Lane x 4 Lane Bus Width: 4 lane PCI Express feasible in x4, x8, x16 slots Transmission Speed: 1Gpbs Network Interface: Optical Fiber (LC interface) Applicable Network Type: Gigabit Ethernet Module Type: Compatible Multi mode / Single Mode Optical Module Supported Slot Height(s): Low Profile and Full Height System Requirements: For Windows Server 2008, Windows Vista SP2, Windows Server 2003 SP2, Linux Stable Kernel version 3.x, 2.6, x, Red Hat Enterprise Linux 4,5, 6, SUSE Linux Enterprise Server 9,10, 11, FreeBSD 7, VMware ESX/ESXi 3.x Size: about 150*120*20mm/5.91*4.72*0.79in Package List: 1 * Network Card 1 * Driver CD 1 * Low Profile Bracket Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.