Features: Dual-port high-speed transmission, 2.5 Gigabit network card, movies are no longer buffered, and 4K high-definition video is played smoothly without waiting. PCIE interface is universal and supports motherboards with X1/X4/X8/X16 card slot interfaces. The use of high-quality environmentally friendly aluminum materials can reduce the power loss of the components and lower the maximum temperature of the components. Using high-performance chips, it has excellent performance and strong speed in large-scale games and complex multi-tasking. CF-P25 adopts a new generation (2.5G) network technology and provides a transmission speed of up to 2.5Gbps, which is faster than standard and Gigabit Ethernet. Provide 2.5Gbps network access for desktop computers for easy entertainment and leisure. Specifications: Material:PCB Size:Approx.8.5x5.8x12cm/3.34x2.28x4.72inches Color:Black Style 1: Cooling Style 2: Fan style Transmission rate: 10/100/1000Mbps/2.5Gbps Bus type: PCI-E Applicable network type: Gigabit Ethernet Network standard: 2.5Gbps Transmission medium: optical fiber Port type: RJ-45 LED indicator: Yes Use environment: Working temperature: 0℃～40℃ Storage temperature: -40°℃～70°°℃ Working humidity: 10%～90%RH non-condensing Storage humidity: 5%90%RH non-condensing Package Includes: 1x Network Card note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.