Say goodbye to weak WiFi and “no signal” spots. The Deco X20-4G fuses ultra-fast WiFi 6 mesh performance with integrated 4G+ support so your home internet just works — smoothly everywhere. Whether you’re streaming 4K, gaming, working from home, or have dozens of smart devices, this 4G gateway mesh system gives you one network to cover it all.
Key Specifications
- WiFi Standard: WiFi 6 (802.11ax) dual-band.
- Maximum theoretical WiFi speed: up to 1.8 Gbps (5 GHz: 1201 Mbps + 2.4 GHz: 574 Mbps).
- Built-in 4G+ modem (Cat6) for SIM card internet access/WAN fallback.
- Wired ports: 3 × Gigabit WAN/LAN Ethernet ports.
- Device capacity: It supports 150+ devices.
- Size & weight: Dimensions approx 105 × 105 × 167 mm.
- Operating environment: 0 °C – 40 °C operating temp, storage –40 °C – 60 °C.
Features & Benefits
- Built-in 4G+ gateway: You can get online instantaneously by plugging in a SIM card, which is useful as a backup or in situations where fixed-line broadband isn’t available.
- Mesh WiFi system: Your entire house is covered by a single, unified WiFi network that allows you to move around freely without losing connectivity.
- WiFi 6 technology: Better speed, better capacity, less lag—ideal for multiple devices, streaming, and gaming.
- Gigabit wired ports: Even if you have high-speed wired devices (smart TV, NAS, game console), you’re covered.
- Smart security & parental controls: Includes features via TP-Link’s HomeShield (IoT protection, parental control, device insights).
- Flexible use modes mean that it works as a 4G/3G router, a wireless router, or an access point to fit your setup.
Uses & Ideal Scenarios
- Ideal for homes where fixed-line broadband is slow, unavailable, or intermittent; use it with a 4G SIM card.
- Great for apartments, small houses, or rental homes where you need whole-home coverage without dead zones.
- Perfect for households with multiple connected devices: smartphones, tablets, smart home gadgets, streaming TVs.
- Suitable for remote working, online classes, gaming, or 4K/8K streaming where dependable WiFi is needed.
- Handy as a backup internet gateway—if your main line fails, you can still stay connected via 4 G.
Why You Need This Product
In the connected home of today, you no longer have one device; you have phones, tablets, TVs, game consoles, smart cameras, and IoT devices. If your WiFi goes out or you get a weak signal in certain rooms, it becomes frustrating. The Deco X20-4G gives you whole-home mesh WiFi, built-in 4G+ Internet option, and WiFi 6 speeds wrapped in one easy solution. Whether you’re upgrading your old router or setting up a new home network, this is a future-proof choice that makes sure everyone and every device stays connected with ease.

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