TP-LINK - ROUTER 3G/4G WIRELESS N 300MBPS TL-MR3420 USB/WAN failover guarantees an always active Internet connection. Wireless sharing of HD video, maximum speed up to 300 Mbps. QSS function: allows you to set up a secure and reliable connection by simply pressing a button. Bandwidth control: allows you to determine the bandwidth allocated to each PC TECHNICAL SPECIFICATIONS Interface 1 USB 2.0 Port for LTE/HSPA+/HSUPA/HSDPA/UMTS/EVDO USB Modem 1 10/100Mbps WAN Port, 4 10/100Mbps LAN Ports, support the auto-Negotiation and auto-MDI/MDIX WPS/Reset Button Wireless On/Off Switch Power On/Off Button External Power Supply 12VDC/1A Dimensions ( L x W x H ) 8*5.4*1.7 in. (204*138*44 mm) Antenna type Omni directional, Detachable, Reverse SMA Antenna gain 2x5dBi WIRELESS FEATURES Wireless standard IEEE 802.11b, IEEE 802.11g, IEEE 802.11n Frequency 2.4-2.4835GHz Transmission power <20dBm Wireless security Support 64 /128 bit WEP, WPA-PSK/WPA2-PSK, Wireless MAC Filtering SOFTWARE FEATURES Security NAT Firewall, SPI Firewall, MAC / IP / Packet / Application / URL Filtering, Denial of Service(DoS), SYN Flooding, Ping of Death Management Web Based Configuration(HTTP), Web Based Firmware Upgrade