Dual RJ45 ports: 10/100/1000M auto-negotiation, full duplex and half duplex, MDI/MDI-X auto crossover. Dual SFP ports: 1.25Gb/s, extend distances ranging from 550M to 120KM depending on the SFP transceiver, providing diverse fiber connect type options for different network applications. Plug and play, fast deployment: There's no software or configuration needed. And LED indicators for LINK/ACT, PWR can dynamic feedback link connection state and fault detection to easily monitor network status. Metal Housing: Compact design for easy installation, durable and light metal housing allows it to work flexibly and efficiently in various network environments. What You Get: 1x 4 port Gigabit Ethernet Media Converter, 1x AC-DC Power Adapter, 1x Product Manual.