Open Box. The 5-Port Gigabit GREENnet Switch from TRENDnet is a Gigabit Ethernet switch with impressive power-saving features: it can consume up to 70% less power than comparable switches. The switch features 5 Gigabit Ethernet ports, all of which support Auto-MDIX negotiation. Compatible with all standard Ethernet protocols, the switch can be used to create networks to which computers of any operating system can connect. 5 10/100/1000Mbps Gigabit Ethernet ports, each featuring Auto-MDIX negotiation GREENnet technology reduces power consumption when Ethernet ports are not in use, a connected device is turned off or in power-saving mode, and can adjust signal output based on Ethernet cable length Utilizes the store-and-forward switching method with non-blocking wire-speed performance IEEE 802.3x Full Duplex Flow Control supports full-duplex operation Back pressure Flow Control supports half-duplex operation Features a 1K MAC address table and 104KB of buffer memory Operates and maximizes packet filtering and forwarding rate Supports Jumbo Frame packets, up to 9KB in size Housed in a sturdy metal enclosure Front panel LEDs give indication of network status and activity TRENDnet TEG-S50G Specs Interfaces Ports 5 x 10/100/1000 Mb/s Gigabit Ethernet (RJ45) Protocols Transmission Method Store-and-Forward MAC Address Table Size 1K Standards Supported IEEE Standards 802.3, 802.3ab, 802.3u, 802.3x Performance Electrical DC Input Power 5 VDC at 2.5 A AC Input Power 120 VAC, 60 Hz Environmental Operating Temperature 32 to 122F / 0 to 50C Operating Humidity 10 to 90% General Dimensions 5.9 x 4.1 x 1.3" / 15 x 10.5 x 3.3 cm Weight 0 lb / 0 kg Packaging Info Package Weight 0.85 lb Box Dimensions (LxWxH) 6.6 x 6.2 x 2.7"