TP-Link TL-MR3420 3G/4G Wireless N Router — Full Description
The TP-Link TL-MR3420 is a versatile router designed to share 3G/4G mobile broadband or wired WAN connections as a stable Wi-Fi network. It supports up to 300 Mbps wireless speed on the 2.4 GHz band, making it ideal for HD streaming, web browsing, and general internet usage.
Key Features:
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3G/4G USB Modem Support: Plug in a compatible LTE/HSPA+/UMTS USB modem to instantly share mobile broadband with other devices.
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WAN Failover: Automatically switches between 3G/4G and your wired WAN connection to ensure “always-online” Internet.
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High-Gain Antennas: Comes with 2 × 5 dBi detachable antennas (in some hardware versions) for better signal strength
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WPS Button: One-touch wireless security setup via WPS for quick and secure connection.
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Bandwidth Control: Allows you to allocate and limit bandwidth per device.
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Security: Supports 64/128-bit WEP, WPA/WPA2-PSK, and features firewall protection (SPI, DoS).
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Ports:
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1 × USB 2.0 for modem
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4 × 10/100 Mbps LAN ports
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1 × 10/100 Mbps WAN port
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Power: Requires 12 V ⎓ 1 A power adapter (check hardware version)
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Compatibility: Works with Windows, macOS, Linux, and other operating systems.
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Manageability: Configurable via web interface; supports settings like parental control and IP/MAC/URL filtering.
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Dimensions: 204 × 138 × 44 mm (approx).
Use Cases:
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Turn a mobile 4G/3G USB dongle into a Wi-Fi hotspot for your home or small office
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Use it as a backup router — if your main internet goes down, it switches to mobile broadband automatically
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Ideal for locations without a stable wired internet connection
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Great for sharing a single mobile data plan with multiple devices






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