Features: brand new and high quality Dual port Gigabit network card, PCI slot, fast heat dissipation, high speed and stability. The 82561 chip driver is used to make the speed faster and more stable. Low power consumption circuit board, the current is faster and more stable. Gold-plated gold-plated PCI fingers make contact more reliable, reduce hardware contact errors, and cause sudden disconnection and other problems! Fully shielded 2 RJ45 interface, reduce the loss, faster transmission speed with heavy anti-warping baffle. Specifications: Bus Type: pci for express 1.0 (2 gt / s) Bus width: x1 pci for express lane, operable in x1, x4, x8 and x16 slots. Card Type: Standard / Low Profile Chipset id: intel-82571eb Industry standards: ieee 802.3, ieee 802.3u, ieee 802.3x, ieee 802.3ab Interface: 2 x RJ45 Power consumption: 10gbps-3w Transmission speed: 10/100 / 1000Mbps Pci for express enabled PC with available pci express: slot x1 gen 1.0 or higher (x4, x8, x16) Software operating system compatibility: windows7 8.x, 10 11 for windows server2008 r2 2012, 2016, 2019, linux 2.6x to 5.x Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC x Dual Gigabit Ethernet Pci for Express Card