Specifications 5 RJ45 10/100 / 1000Mbps Auto-Negotiation ports, supports Auto-MDI / MDIX; Green Ethernet technology for optimized power consumption; IEEE 802.3x flow control standard, provides stable data transfers; Steel housing and design that allows mounting on the desk or wall; Supports QoS (IEEE 802.1p) and IGMP snooping; No configuration required, just plug it in and it’s ready to go.