【Smart Management】2x Dual LC fiber Optical Port: 1.25Gbps, 1310nm wavelength, support Gigabit Ethernet; 2x RJ45 Port: 10M/100M/1000M, supports Full/Half Duplex auto-negotiation and MDI/MDIX auto-crossover. With 4 ports to meet multi-user access..【High-quality and Widely Compatibility】Equipped with high-quality chip to ensure stability and Ultra-low time-delay data transmission. Complies with IEEE 802.3/802.3u/802.3z/802.3ab, 10/100/1000Base-TX/FX. Supports jumbo frame size 9K byte..【Plug-and-Play - Zero Configuration】Easy to installation and use, no software or configuration needed for fast deployment. With LED indicators for LINK/ACT/ PWR to easily monitor network status and dynamically feedback link connection state and fault detection ..【Compact Metal Housing Design】Easy installation and space saving with its compact design. Durable and light metal housing allows it work efficiently in various network environment..【What You Get】1x 4 port Gigabit Ethernet Media Converter, 2x 1000Base-LX module, 1x AC-DC Power Adapter, 1x Product Manual. 30-day Money-Back guarantee with 1 Year warranty and lifetime tech support.