TP-Link
TP-Link Deco S4(2-pack) AC1900 Whole Home Mesh WiFi System
★★★★★
4 in
Blanket your home in fast, reliable WiFi with the TP-Link Deco S4 mesh system covering up to 3,800 sq. ft.
$79.98*$99.99Save 20%
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*Price sourced from Amazon.com. Last updated:Jun 03, 2026.Price and availability are subject to change.
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Overview
Key Features
A New Way to WiFi: Deco Mesh technology gives you a better WiFi experience in all directions with faster WiFi speeds and strong WiFi signal to cover your whole home.
Better Coverage than traditional WiFi routers: Deco S4 2 units work seamlessly to create a WiFi mesh network that can cover homes up to 3,800 sq. ft. No Dead Zone anymore.
Seamless and Stable WiFi Mesh: Rather than wifi range extender that need multiple network names and passwords, Deco S4 allows you to enjoy seamless roaming throughout the house, with a single network name and password.
Incredibly fast 3× 3 6Stream AC1900 speeds makes the deco capable of providing connectivity for up to 75 devices.
With advanced Deco Mesh Technology, units work together to form a unified network with a single network name. Devices automatically switch between Decos as you move through your home for the fastest possible speeds
Robust Parental Controls: Limit online time and block inappropriate websites according to unique profiles created for each family member. Easy to keep your children safe while they’re online.
Setup is a breeze with the Deco app available on your Android or iOS device. Turn on/off guest WiFi with Alexa voice commands.
Each Deco S4 has 2 Gigabit Ethernet ports(4 in total for a 2-pack) and supports Wired Ethernet Backhaul for better speeds. Any of them can work as a Wi-Fi Router. Works with all internet service providers, such as AT andT, Verizon, Xfinity, Spectrum, RCN, Cox, CenturyLink, Frontier, etc.( a modem is required for most internet service providers)
Specifications
WiFi Standard
AC1900 Dual-Band
Coverage
Up to 3,800 sq. ft. (2-pack)
Ethernet Ports
2 Gigabit ports per unit
Modes
Router and Access Point
Roaming
Seamless
Features
Parental Controls, Guest Network
Voice Assistant
Amazon Alexa Compatible
Units Included
2
Pros & Cons
👍 Pros
- Covers up to 3,800 sq. ft. with just two units, eliminating most dead zones
- Seamless roaming hands off devices between units without interruption
- Built-in parental controls and guest network require no additional software
- Simple app-based setup gets the mesh network running in minutes
- Each unit includes 2 Gigabit Ethernet ports for wired device connections
👎 Cons
- Only 2 Ethernet ports per unit limits wired device connections without a switch
- No Wi-Fi 6 support, as the AC1900 standard is a previous generation
- No built-in USB port for network-attached storage or printer sharing
- Advanced configuration options are limited compared to standalone routers
Frequently Asked Questions
How much area does the Deco S4 2-pack cover?
The two-unit pack covers up to 3,800 square feet, which is sufficient for most medium to large homes.
Can the Deco S4 be used as an access point instead of a router?
Yes, the Deco S4 supports both Router mode and Access Point mode, so you can integrate it with an existing router if needed.
How many Ethernet ports does each Deco S4 unit have?
Each unit has 2 Gigabit Ethernet ports, which can be used to wire in devices like game consoles, smart TVs, or desktop computers.
Does the Deco S4 support seamless roaming between units?
Yes, the mesh system uses seamless roaming so your devices automatically switch to the strongest unit without dropping the connection as you move through your home.
Is the Deco S4 compatible with voice assistants?
Yes, it is compatible with Amazon Alexa, allowing you to control basic network functions with voice commands.
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