5-Port 10/100/1000Mbps Desktop Switch TL-SG105     5 10/100/1000Mbps Auto-Negotiation RJ45 ports supporting Auto-MDI/MDIX     Green Ethernet technology saves the power up to 84%     IEEE 802.3x flow control provides reliable data transfer     Steel housing, desktop or wall-mounting design     Support 802.1p/DSCP QoS* and IGMP Snooping function     Plug and play ,no configuration needed  * For V2 and later version