Features: The Adaptive Rtl8111H PC Standalone Networking Card features a high-speed and stable Networking connection for a smooth online experience. Supports adaptive speeds with transfer rate of 1000Mbps Compatibles wide operating systems, featuring low power consumption. Suitable for individual users, corporate office environment, and online game enthusiasts who need high-speed Networking connection. Can be used for desktop or laptop networking card upgrades to provide faster Networking connections. Specifications: Size:about 65.3x44x16.3mm/2.57x1.76x0.64in Component：PCB Control: Rtl8111H Transmission Rate:10/100/1000Mbps Interfaces Type:PCIE-X1 Networking Type:Gigabit Ethernet Networking Standard:Ethernet Transmission Media:1000M Port Type:RJ45 Package Includes: 1PC Rtl8111H PCIE Ethernet Card note: Due to light and screen difference, the item color may slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement.