Features: Support two 2.5Gbps PCI-Express dual-portconvergence ROS- soft routing. Using original high performance chip support 2.5Gbps high speed transmission. Support 10/100/1000 auto-configuration; support for swap/polarity-/skew correction, crossover detection and auto-correction. Support Wake-on-LAN and Remote Wake-up;Support hardware error correction code function With 120mm/80mm two baffles, supporting 4U- large chassis 120mm, supporting 2U small chassis 80mm Specifications: Item: 2-Port Gigabit Ethernet Network Card Bus width: 2.5Gbps PCI-Express X4 Connectors: 4 x RJ45 Data rate 10/100/1000M/ 2.5Gbps Applicable Network Type: -Gigabit Ethernet Transmission Medium: Wired Port Type: RJ45 Support Windows7/8/8.1/10/XP/Vista-Linux- Baffle Size:Approx 120mm/4.72in 80mm/3.15in 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 2-port Gigabit-Server- Network Card 2PCSx Baffles