Feature&Specification One 10M/100M auto negotiation WAN port, connectible with xDSL/cable modem or Ethernet Four 10M/100M auto negotiation LAN ports Compliant with IEEE802.3 Ethernet standard and IEEE802.3u fast Ethernet standard Full duplex IEEE802.3x flow control, half duplex backpressure flow control Supporting TCP/IP, PPPoE, DHCP, ICMP, NAT, SNTP protocols Prevent D.O.S network attack Supporting VPN pass through Supporting UPnP, MSN audio and video communication Supporting DDNS Providing DHCP server, supporting fixed IP address Supporting static and dynamic routing Supporting virtual server, supporting DMZ host Supporting MAC address filter, can control Internet access of users Support URL filter, can control Web site access of users Run or stop at set time, save Internet access money Local, remote Web management, English Web pages Upgrade firmware on Web Standard/protocols supported: IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.1X, TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP Ports: 4 10/100M auto detect RJ45 port (Auto MDI/MDIX); 1 10/100M Base-T WAN port (Auto MDI/MDIX) Transmission media: Cat 3 or above UTP (10Base-T); Cat 5 UTP (100Base-TX) LED indicator: power, SYS, WAN link/act, LAN link/act Working temperature: 0-45癈 Storage temperature: -20~70癈 Working humidity: 10-85% RH non-condensing Power adaptor output: AC 9V, 1A Max. power consumption: 3W