1PCI-EX1 interface, compatible with more motherboard slots. 2Can be used for server / soft routing / ROS / ESXI / PXE / remote wake / aggregation, etc. 3Widely compatible - Support for XP / WIN7 / WIN8 / WIN10 and other systems. 4This card can be used for diskless server, data server, website server and other servers, long-term work stability is extremely strong 5Can also be used for VM virtual machine, ESXI full version version, virtual VLAN, aggregation load balancing, flow control, ISCSI, and other virtual applications Features: PCI-EX1 interface, compatible with more motherboard slots. Widely compatible - Support for XP / WIN7 / WIN8 / WIN10 and other systems. Can be used for server / soft routing / ROS / ESXI / PXE / remote wake / aggregation, etc. This card can be used for diskless server, data server, website server and other servers, long-term work stability is extremely strong Can also be used for VM virtual machine, ESXI full version version, virtual VLAN, aggregation load balancing, flow control, ISCSI, and other virtual applications Adopts for Intel82576 chip network card, higher speed and the most important advantage is that it can support the server multi-core virtual environment for multi-core data distribution. Moreover, multicast and broadcast of data on virtual servers is also supported. For Intel I/O Acceleration Technology, which is a set of features that improve data transfer speed from network devices to chips and processors across platforms, helping to improve system performance and application latency, for Intel Quick Data technology / Cache Direct Access (DCA) / MSI- X, low latency interrupt, receiver side adjustment (RSS) and other features.Specification: Type: Dual Port Network CardType: Server NIC Chip: for intel 82576-T2 Support PCMCIA standard: NO Bus interface: PCI-E X1 Full duplex: compatible with full and half duplex LED indicator: 2 LED indicators Network cable interface type: RJ45 Transmission rate: 10/100/1000 Transmission media type: UTP Network standard: IEEE8 02.3ad, IEEE802.1Q, IEEE802.3, IEEE801.p Working temperature: 0 - 55 Working humidity: 85% Storage temperature: -20 - 65 Storage humidity: 85% Size: Approx. 13.5 * 12 * 2.1cmPackage list: 1 x Server NIC 1 x Half-height Veneer1 x CD Note: Please allow slight error due to manual measurement. Thanks