---
product_id: 185020780
title: "TP-Link Deco S4 Mesh AC1900 WiFi System - Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Ports, Works with Alexa, Deco S4(3-Pack)"
brand: "tp-link"
price: "$344"
currency: NZD
in_stock: true
reviews_count: 8
category: "Tp Link"
url: https://www.desertcart.nz/products/185020780-tp-link-deco-s4-mesh-ac1900-wifi-system-up-to
store_origin: NZ
region: New Zealand
---

# AC1900 dual-band speeds 5500 sq.ft. coverage 6 Gigabit Ethernet ports TP-Link Deco S4 Mesh AC1900 WiFi System - Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Ports, Works with Alexa, Deco S4(3-Pack)

**Brand:** tp-link
**Price:** $344
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your home WiFi game—because buffering is so last decade!

## Quick Answers

- **What is this?** TP-Link Deco S4 Mesh AC1900 WiFi System - Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Ports, Works with Alexa, Deco S4(3-Pack) by tp-link
- **How much does it cost?** $344 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/185020780-tp-link-deco-s4-mesh-ac1900-wifi-system-up-to)

## Best For

- tp-link enthusiasts

## Why This Product

- Trusted tp-link brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Effortless setup via the intuitive Deco app—get your network live in minutes without tech headaches.
- • **Blazing Fast AC1900 Speeds:** Experience ultra-smooth streaming and gaming with 3×3 6-stream dual-band WiFi supporting 100+ devices simultaneously.
- • **Whole-Home WiFi, Zero Dead Zones:** Seamlessly blanket up to 5,500 sq.ft. with powerful mesh coverage that keeps you connected everywhere.
- • **Unified Network, No Interruptions:** Move freely with a single WiFi name and password; devices auto-switch to the strongest Deco unit for lag-free roaming.
- • **Smart Family Controls & Alexa Ready:** Protect your loved ones with robust parental controls and manage your network hands-free using Alexa voice commands.

## Overview

The TP-Link Deco S4 Mesh AC1900 WiFi System is a 3-pack mesh router set designed to deliver seamless, high-speed WiFi coverage up to 5,500 sq.ft. It supports dual-band AC1900 speeds with 3×3 6-stream technology, includes 6 Gigabit Ethernet ports for wired connections, and offers easy setup via the Deco app. Compatible with all major ISPs and Alexa-enabled devices, it ensures stable connectivity for over 100 devices with advanced parental controls and unified network management.

## Description

Each Deco S4 Unit has 2 Gigabit Etherent Ports, Supports WAN/LAN auto-sensing, Any of them can work as a WiFi Router. All TP-Link Deco Mesh WiFi can work together.

Review: Reliable - Absolutely Reliable! This mesh is seriously a tank. Always works. Never drops out. Comes back smoothly after power outages. She is not fancy, she is not expensive, her app is intuative and easy to use. She is super easy to set up. Has a very strong signal. Works on 2 level homes. I have 3 sets in 3 different houses and I 100% recommend this brand.
Review: Good signal - Excellent!!! Easy to set up. My house is two levels, and work Excellent. Is wireless. Reply the good signal of my model. Love it

## 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 three units work seamlessly to create a WiFi mesh network that can cover homes up to 5, 500 square feet. 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 6 Stream AC1900 speeds makes the deco capable of providing connectivity for up to 100 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 or off guest WiFi with Alexa voice commands.
- Each Deco S4 has 2 Gigabit Ethernet ports(6 in total for a 3-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 T, Verizon, Xfinity, Spectrum, RCN, Cox, CenturyLink, Frontier, etc.( a modem is required for most internet service providers)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084GTH5LL |
| Antenna Location | Home |
| Antenna Type | Internal |
| Best Sellers Rank | #541 in Electronics ( See Top 100 in Electronics ) #5 in Whole Home & Mesh Wi-Fi Systems |
| Brand | TP-Link |
| Built-In Media | Deco S4 (3-pack) 3 Deco S4R Units 1 RJ45 Ethernet Cable 3 Power Adapters 1 Quick Installation Guide |
| Color | White |
| Compatible Devices | All WiFi Enabled devices |
| Connectivity Technology | Ethernet, Wi-Fi |
| Control Method | Voice |
| Controller Type | amazon_alexa, vera |
| Coverage | 5500 square feet |
| Customer Reviews | 4.4 out of 5 stars 30,544 Reviews |
| Data Transfer Rate | 1200 Megabits Per Second |
| Frequency | 5 GHz |
| Frequency Band Class | Dual-Band |
| Is Modem Compatible | No |
| Item Dimensions L x W x H | 3.57"L x 3.57"W x 6.39"H |
| Item Height | 6.39 inches |
| Item Type Name | Whole Home WiFi System |
| Item Weight | 4.2 Pounds |
| LAN Port Bandwidth | 1000 Mbps |
| Manufacturer | TP-Link |
| Maximum Upstream Data Transfer Rate | 950 Megabits Per Second |
| Model Name | Deco S4(3-Pack) |
| Model Number | Deco S4(3-Pack) |
| Number of Antennas | 9 |
| Number of Ports | 6 |
| Operating System | Linux |
| Other Special Features of the Product | Access Point Mode |
| Security Protocol | WPS |
| Special Feature | Access Point Mode |
| UPC | 840460605014 845973089726 |
| Unit Count | 3.0 Count |
| Voltage | 12 Volts (DC) |
| Warranty Description | 2 year manufacturer |
| Wireless Communication Standard | 802.11ac |
| Wireless Compability | 802.11ac |

## Product Details

- **Brand:** TP-Link
- **Color:** White
- **Compatible Devices:** All WiFi Enabled devices
- **Connectivity Technology:** Ethernet, Wi-Fi
- **Frequency Band Class:** Dual-Band
- **Included Components:** Deco S4 (3-pack) 3 Deco S4R Units 1 RJ45 Ethernet Cable 3 Power Adapters 1 Quick Installation Guide
- **Model Name:** Deco S4(3-Pack)
- **Recommended Uses For Product:** Home
- **Special Feature:** Access Point Mode
- **Wireless Communication Standard:** 802.11ac

## Images

![TP-Link Deco S4 Mesh AC1900 WiFi System - Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Ports, Works with Alexa, Deco S4(3-Pack) - Image 1](https://m.media-amazon.com/images/I/614CaSPw+BS.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: I have to-link  1750 with extender is this a better setup ?? Cause every once in awhile the extender loss singl.**
A: Extenders will definitely allow connections from further away, BUT they always cut your speed exactly in half. So an extender is just that a range extender, not a speed increaser, it decreases speed.  However the range extension can prevent dropouts so it acts like it is a speed increase but it is really just preventing dropouts (and remember it always cuts your speed in half).
On the other hand a Mesh system is actually 2 (or more) routers that you place in 2 different spots and so it does NOT start by cutting your speed in half. It is full speed. But since your computer (or wifi TV or doorbell etc) is closer to one of the 2 (or more) mesh spots it will also extend your range for that reason, and prevent dropouts for that reason. And the closer your device (computer, laptop, etc) is to the router, the chances are the faster the internet speed could very well be (for instance on the ookla online speed test website).

BUT an extender works with your old router. A mesh system IS a router (actually it is 2 or 3 or more routers), so it will not work with your old router. The routers are built in to the mesh system.  With an extender you need a router (your old one for instance), the extender(s), and a modem.

With a mesh system you just need the mesh system and a modem. You do not need a router (because it is built in).

**Q: how far from the base can a node be placed and does each node have to talk to the base or do they talk to one another in a chain?**
A: The nodes talk to each other to form the mesh network.  The setup app will guide you in the placement of each node.  My base is in one corner of the downstairs, I placed one node in the kitchen which is in the middle of the house and the other node upstairs.  That gave me great coverage everywhere in the house.

**Q: I just installed this and apple is indicating wpa/wpa2 (tkip) is not considered secure. how can i configure this to wpa2 (aes) or wpa3 security type?**
A: Hi! The security message you are receiving is due to a recent update of your smartphone’s mobile operating system. To remedy this message and to make sure your Deco S4’s encryption is optimally configured, please ensure your Deco app is fully updated, then update the firmware of your Deco S4. Once the firmware has been updated, the Deco S4’s WiFi encryption will be set to WPA2-PSK [AES] by default, so this message will no longer appear. 

For detailed instructions on how to update your Deco’s firmware, please visit FAQ 1599 on our official TP-Link website. To locate this FAQ, visit our website and enter 1599 in the top-right search field, then click the corresponding FAQ in the search results.

**Q: How reliable and user friendly are the parental controls?**
A: The Parental Controls feature on our Deco Mesh WiFi systems is designed to provide robust, yet intuitive and convenient features to help safeguard your network and those who use it. For more details on the Parental Controls feature, please visit FAQ 1598 on our official website. To locate this FAQ, visit our website and enter 1598 in the top-right search field, then click the corresponding FAQ in the search results.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable
*by A***R on January 13, 2026*

Absolutely Reliable! This mesh is seriously a tank. Always works. Never drops out. Comes back smoothly after power outages. She is not fancy, she is not expensive, her app is intuative and easy to use. She is super easy to set up. Has a very strong signal. Works on 2 level homes. I have 3 sets in 3 different houses and I 100% recommend this brand.

### ⭐⭐⭐⭐⭐ Good signal
*by G***A on December 26, 2025*

Excellent!!! Easy to set up. My house is two levels, and work Excellent. Is wireless. Reply the good signal of my model. Love it

### ⭐⭐⭐⭐⭐ Best Wi-Fi Router ever
*by L***A on December 13, 2025*

The price is worth it. I used to have to reroute my old router at least once a week. TP-Link has only needed to be rerouted because the modem have been updated or issues with the service provider. I love how fast everything is working. Before there was a lagging in the bedroom far east away from the modem more than 100 Feet coverage. But since I changed it to the TP-Link I can even close the door to the room and there has been no shortage in coverage at all. Love the way it looks, easy to install and no interruptions have been experienced, I have it for more than a year, this is one I highly recommend. I bought three to cover all weak coverage. One in the office near the modem, one in the living room and one in the far east of the apartment with brick walls. Keeping me logged from every angle with no LAN issues. And this was recommended to me by my internet provider installation man. He had come out to service their router more than it should.

## Frequently Bought Together

- TP-Link Deco Mesh AC1900 WiFi System (Deco S4) – Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Ports, Works with Alexa, 3-pack
- Cat 8 Ethernet Cable, 1.5Ft 3Ft 6Ft 10Ft 15Ft 20Ft 30Ft 40Ft 50Ft 60Ft 100Ft Heavy Duty High Speed Internet Network Cable, Professional LAN Cable Shielded in Wall, Indoor&Outdoor
- TP-Link TL-SG108 8 Port Gigabit Unmanaged Ethernet Network Switch, Ethernet Splitter Plug & Play Fanless Metal Design Shielded Ports Traffic Optimization

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/185020780-tp-link-deco-s4-mesh-ac1900-wifi-system-up-to](https://www.desertcart.nz/products/185020780-tp-link-deco-s4-mesh-ac1900-wifi-system-up-to)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-22*