TP-Link Deco S4 Mesh WiFi System – 3,800 sq ft Coverage, AC1900, 2-Pack

A Smarter Mesh WiFi System for Your Home

The TP-Link Deco S4 uses mesh technology to deliver stronger signals in every direction, helping your devices stay connected as you move through rooms. In a 2-pack setup, the system can cover up to 3,800 square feet, with optional wired backhaul to boost performance where needed.

One network name keeps things simple. As you travel from living room to bedroom, your phone or tablet will switch to the strongest Deco unit automatically, so you don't have to reconnect or re-enter passwords.

What you get and how it helps

• In a 2-pack, each Deco unit provides two Gigabit Ethernet ports, giving four ports total for wired devices or backhaul.
• Coverage up to 3,800 sq ft with two units, reducing dead spots across larger homes.
• One network name enables seamless roaming without multiple passwords.

Performance and control at your fingertips

The Deco S4 delivers AC1900-class performance with 3x3 streams, supporting many devices without slowing down. Parental controls allow you to tailor online time and block certain sites per family profile, while the Deco app makes setup simple on iOS or Android. You can also manage or pause guest WiFi using Alexa voice commands.

• AC1900-class speeds and robust device support for busy households.
• Parental controls by family profile for safer online experiences.
• App-based setup and Alexa-enabled guest network control for quick adjustments.

Compatibility is broad—these units work with most major ISPs, and a modem is typically required to connect your service. If you need more space, adding another Deco is a simple way to extend coverage.