Auto-negotiation ports provide smart integration between 10Mbps and 100Mbps hardware. 5 10/100Mbps Auto-Negotiation RJ45 ports, Supports Auto MDI / MDIX. Plug and play no configuration required. Energy efficient technology which saves up to 60% lower in power consumption. Non-blocking switching architecture that forwards and filters packets at full wire-speed for maximum throughput. IEEE 802.3x flow control provides reliable data transfer. Fanless design ensures quiet operation.