1x Multimode Dual LC fiber Optical Port: 1.25Gbps, 850nm wavelength, support Gigabit Ethernet; 1x RJ45 Port: 10M/100M/1000M, supports Full/Half Duplex auto-negotiation and MDI/MDIX auto-crossover. Equiped 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. Modulization configuration design, support hot-swappable, plug and play. And LED indicators for TX, FX LINK/ACT, POWER, FDX can dynamic feedback link connection state and fault detection to easily monitor network status. Only 93mm x 72mm x 27mm(3.7"x 2.8"x 1.1") in measurement. Its compact modular design facilitates deployment in a narrow desktop location to save space. Product List: 1x Gigabit Ethernet Media Converter, 1x 1000Base-SX SFP module, 1x DC Power Adapter, 1x Product Manual. 30-day Money-Back guarantee, lifetime tech support.