Tech Specs Switch Auto-negotiates port speed to 10 Mbps, 100 Mbps, or 1000 Mbps Plug & play installation For Customer Complaints:Email:helpdesk@in.dlink.com Support No:+91-832-2856000 or 1860-233-3999 Uses 802.3az Energy Efficient Ethernet to reduce power usage automatically without sacrificing performance Auto MDI/MDIX crossover for all ports D-Link Green Technology: IEEE 802.3az Energy Efficient Ethernet, Port standby, Cable length detection and Link status detection