TP-Link TL-MR3420 300Mbps 3G/4G Wireless N Router

Easy Setup and Management

Set up the TP-Link TL-MR3420 in minutes thanks to its intuitive web interface and the powerful Tether app. Manage network settings, including Parental Controls and Access Control, from any Android or iOS device. Control your home network whenever and wherever you are.

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TP-Link TL-MR3420 300Mbps 3G/4G Wireless N Router

The Classic USB-Modem Router – Still the #1 Choice for Villages & Backup Internet in 2025

The TP-Link TL-MR3420 is the legendary router that has kept millions of rural Bangladeshi homes, villages, small shops, and remote offices online for over a decade. Unlike newer SIM-card routers, it works by simply plugging in any compatible 3G/4G USB modem/dongle (Grameenphone, Robi, Banglalink, Airtel, Teletalk) and instantly shares the connection as Wi-Fi to up to 32 devices.

Even in 2025, it remains the most popular and reliable choice for:

• Villages with no fiber/cable
• Backup internet during load-shedding or broadband outages
• Construction sites, farms, and temporary offices
• Users who already own a high-speed USB modem

TP-Link TL-MR3420 Key Features:

• 300 Mbps Wireless N (2.4 GHz) – perfect for HD YouTube, Facebook, WhatsApp calls
• Compatible with 120+ USB modems – works with almost every 3G/4G dongle sold in Bangladesh (official list on TP-Link website)
• 2× 5dBi Detachable Antennas – excellent range, up to 1,500–2,000 sq ft (can upgrade to even higher-gain antennas)
• Failover Mode – automatically switches between USB modem and wired WAN (DSL/fiber) when one fails
• 1× USB 2.0 Port – plug & play with your existing dongle
• Fast Ethernet Ports – 1× 100 Mbps WAN + 4× 100 Mbps LAN
• Bandwidth Control (QoS) – prioritize gaming or video calls
• Parental Controls & Guest Network
• WPS One-Touch Connection
• Multiple Modes – 3G/4G Router, WISP Client, AP, Repeater
• Super Easy Tether App Setup – QR code in minutes

TP-Link TL-MR3420 Technical Specifications:

• Wi-Fi Standard: 802.11n (Wireless N), 300 Mbps on 2.4 GHz
• USB Support: 3G/4G USB modems (HSPA+, HSUPA, HSDPA, UMTS, EVDO, LTE dongles)
• Ports: 1× 100 Mbps WAN, 4× 100 Mbps LAN, 1× USB 2.0
• Antennas: 2× detachable 5dBi
• Dimensions: 174 × 111 × 30 mm

Popular Compatible Modems in Bangladesh (2025):

• Huawei E8372h, E8372h-153, E8372h-609, E8372h-820
• Huawei E303, E173, E3531, E355
• ZTE MF79U, MF831, MF910
• Any unlocked 4G dongle with HiLink or RNDIS mode

Frequently Asked Questions (FAQs)

1. Does it have a built-in SIM slot? No — you plug in your existing USB modem/dongle.

2. Will it work with my old Grameenphone/Robi dongle? Yes — supports 120+ models. Check the official TP-Link compatibility list.

3. Can I use it as backup when fiber fails? Yes — connect fiber to WAN port; it automatically switches to 4G when fiber drops.

4. How many devices can connect? Up to 32 devices smoothly.

5. Coverage? 1,500–2,000 sq ft — one of the best in budget class (and antennas are upgradable).

6. Easy to set up? Yes — plug modem → power on → connect to Wi-Fi → done (or use Tether app).

7. Can I increase range? Yes — replace antennas with 9dBi or 12dBi outdoor ones.

8. Still worth buying in 2025? Absolutely — if you already have a good USB modem or live in rural areas, nothing beats its reliability and range.

9. Overheating issues? Very rare — famous for running 24/7 even in hot summers.

10. What’s in the box?

• TP-Link TL-MR3420 Router
• 2× 5dBi Antennas
• Power adapter
• Ethernet cable
• Resource CD & Quick Guide
• USB extension cable

The TP-Link TL-MR3420 — the immortal village champion that keeps Bangladesh connected where fiber can’t reach! 🇧🇩❤️