16-port 10/100/1000 Gigabit Desktop Switch Unmanaged Copper Gigabit Ethernet Switch 8 x 10/100/1000Mbps Auto-Negotiating Ports Auto-Negotiation of MDI-II / MDI-X Cross Over for Easy Expansion Half-/Full-Duplex IEEE 802.3x Flow Control Energy Efficient Ethernet (802.3az) compatible Jumbo frame up to 10000 bytes 8K MAC address, 512KB packet buffer 802.1p QoS, 8 queues 3 DIP-switches for EEE-(on)/Flow-(on)/Port Isolation & Storm-Control (off) Kensington Security-Slot and grounding screw (back side) Rackmount Kit for Installation in 19" Rack supplied Internal universal power supply 100-240V 0.20A