TP-Link TL-MR3420 3G/4G Wireless N Router

The TP-Link TL-MR3420 3G/4G Wireless N Router is a versatile and cost effective networking solution that lets you share internet access via wired broadband or a 3G/4G USB modem over a Wi-Fi network. With 300 Mbps Wi-Fi speed on the 2.4 GHz band, built in USB support for mobile broadband dongles, and easy failover between WAN and 3G/4G connections, it’s ideal for homes, small offices, or temporary setups where wired internet may be unavailable or unreliable. The intuitive web interface and security features help you configure and protect your network with ease.

Key Features

• 3G/4G USB Modem Support: Connect a compatible 3G/4G USB modem to create a Wi-Fi hotspot and share mobile broadband with multiple devices.

• Failover Function: Automatic switch between wired WAN and 3G/4G USB modem keeps you online if one connection fails.

• 300 Mbps Wireless N: Delivers up to 300 Mbps on the 2.4 GHz Wi-Fi band  suitable for HD streaming, browsing, and multi device use.

• Multiple Connectivity Options: 1 × 10/100 Mbps WAN port, 4 × 10/100 Mbps LAN ports, and 1 × USB 2.0 port for modems.

• Robust Security: WPA/WPA2 encryption, NAT/SPI firewall, IP/MAC filtering, and DoS protection help safeguard your network.

• WPS Button: One touch Wi-Fi Protected Setup (WPS) for quick and secure wireless connection. 

• Easy Setup & Management: Configure via web interface and manage basic settings like parental controls and bandwidth limits.

• External Antennas: Dual high gain antennas for better wireless coverage. 

Specifications

Wireless & Network

• Standards: IEEE 802.11b/g/n (2.4 GHz).

• Wireless Speed: Up to 300 Mbps @ 2.4 GHz.

• Frequency Band: 2.4-2.4835 GHz.

• Security: WEP, WPA-PSK/WPA2-PSK, Wireless MAC filtering.

Hardware

• Ports:

  • 1 × USB 2.0 (for 3G/4G USB modems).

  • 1 × 10/100 Mbps WAN.

  • 4 × 10/100 Mbps LAN.

• Buttons: WPS/Reset, Wireless On/Off, Power On/Off.

• Antennas: 2 × 5 dBi external antennas (often detachable on some versions).

• LED Indicators: Power, WAN, WLAN, LAN, USB status.

Software Features

• Security & Protocols: NAT/SPI firewall, MAC/IP/Packet/Application/URL filtering, DoS protection (SYN Flooding, Ping of Death).

• Management: Web based setup & firmware upgrade.

• WAN Types: Dynamic IP, Static IP, PPPoE, PPTP, L2TP.

Physical & Power

• Dimensions: ~204 × 138 × 44 mm.

• Power Supply: 9 V DC (typical).