... power consumption, 160MA 260MA 3 built-in wired Ethernet port, no adapter4 Nokia Universal battery, easy to buy ... lazy modeSPI stateful packet filtering firewallIP address port filteringMAC address port filteringURL filteringAgainst Dos attacksAnti-ping functionDHCP server ... bandwidth managementInterface 1 10/100Mbps LAN / WAN Ethernet port sharingUSB2.0 interface (3G card interface)A mini USB ...