... +8 FE2 WAN+8 FE, built-in WiFi1 Wan+1 ADSL+8FE, built-in WiFi1 Wan+1 ADSL+8 FE, ... built-in WiFi, 3G-WCDMAWiFi (802.11a/b/ ... g/n)/Built-inBuilt-inBuilt-in3GUSB extendedUSB extendedUSB extendedBuilt-in WCDMAExtension slot1 USB1 USB1 USB1 USBDimensions, Power Supply, and ... °C to 40°CAmbient humidity10% to 90%, non-condensing Huawei Symantic USG2110-A-GW-W