Features: 1.This network card is a dual?port Gigabit network card, server/pcie 2.0 x1 network card, convenient and practical. 2.This server network card has a larger radiator, work more stable, and heat dissipation faster. 3.Thicken the gold-plated gold fingers to reduce hardware contact failures and avoid problems such as sudden disconnection. 4.For the 82576EB chip controller, high performance and reliability make data transmission faster and reduce network conflicts. 5.The network standards are ieee 802.1p, ieee 802.1q, ieee 802.2, ieee 802.3ac, ieee 802.3az, ieee 802.3x, ieee 802.3z, ieee 802.3ad. specification:Item Type: Gigabit Network Card Bus Type: PCI Express 2.1 (2.5 GT/s) 1 x Lane PCI Express, available in x1, x4, x8 and x16 slots Card Type: Standard/low file Chipset ID: For Intel-82576EB Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab Interface: 2 RJ45 Rate: 1Gbps-594mW Requirements: Computer with PCI Express and available PCI Express x1 slot Gen 2.0 or higher (x1, x4, x8, x16) Compatible System: For Windows 7/8.x/ 10/ for Windows Server 2008 R2, 2012, 2016/Linux 2.6.x to 4.x Height: Approx. 120mm / 4.7in Length: Approx. 100mm / 3.9in Width: Approx. 22mm / 0.9in LED: 2 – Act LED (Green) 2 – Link (Green) PackageList:1 xNetwork Card NotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.