Tenda D303 300Mbps ADSL2+ Modem & 3G Router is an an all-in-one, advanced ADSL2/2+ device that includes a Wireless-N 300Mbps router, 4-Port Ethernet switch, 3G and NAS in one unit. The device provides triple WAN ports ensuring an uninterrupted broadband connection. It connects to the network through a DSL or Ethernet connections. By simply plugging in an activated 3G USB modem, the device can connect to mobile broadband. When the DSL/cable is disconnected, the device will connect to the mobile network. When DSL/cable connection is restored, the device will reconnect to reduce billing. Hence, the D303 is an ideal solution for office situations where a constant and uninterrupted connection is critical, or residences where fixed broadband connections are not available. Specifications : Hardware : Protocols: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, IEEE 802.3, IEEE 802.3u, ANSI T1.413, ITU G.992.1, ITU G.992.2, ITU G.992.3, ITU G.992.5, CDMA2000, WCDMA, Interface: 3x10/100Mbps auto-negotiation (Auto MDI/MDIX) LAN ports, Interface: 1x10/100Mbps auto-negotiation WAN/LAN Interchangeable (Auto MDI/MDIX), Interface: 1 x RJ11 port and 1 x USB V2.0, Antenna: x2 external Omni directional antennas, Button: 1 x Power and 1 x Reset/WPS, Power Input: 100-240V 50/60MHz, Power Output: 9V DC-1A, Operating Temperature: 0? ~ 40?, Storage Temperature: -40? ~ 70?, Operating Humidity: 10% ~ 90% RH Non-condensing, Storage Humidity: 5% ~ 90% RH Non-condensing, LED : Power/SYS/Internet/DSL/WLAN/LAN/ WPS/USB, Transmission Media: Cat.5, Cat.5e, Cat.6, Telephone Line, Wireless. Wireless Speed: 300Mbps, Frequency: 2.4GHZ, Operating Mode: Wireless ADSL / ADSL2+ Modem Router, WDS, Internet Connection Type: Dynamic IP, Static IP, PPPoE, PPPoA, IPoA, LED : Power/SYS/Internet/DSL/WLAN/LAN/WPS/USB, Transmission Media: Cat.5, Cat.5e, Cat.6, Phone Cable. Wireless Speed: 300Mbps, Frequency: 2.4GHZ, Wireless Radio: On/Off, SSID Broadcast: On/Off, WDS: On/Off, SSID setup, Channel: Auto, 1-13, Network Mode?11b only, 11g only, 11n only, 11bg mixed, 11bgn mixed, Channel Bandwidth?Auto, 20MHz, 40MHz, Security: Wireless Access Control (Wireless MAC filter), Wireless Security: Enable/Disable; 64-/128-bit WEP; WPA-PSK/WPA2-PSK, Dimensions: 171.61mm x 111.16mm x 34.47mm