---
product_id: 231907130
title: "Deco S4 Whole Home Mesh WiFi System - Up to 2,000 Sq.ft. Coverage, AC1900 WiFi Router/Extender Replacement, Gigabit Ports, Deco S4(1-Pack)"
brand: "tp-link"
price: "¥16701"
currency: JPY
in_stock: true
reviews_count: 8
category: "Tp Link"
url: https://www.desertcart.jp/products/231907130-deco-s4-whole-home-mesh-wifi-system-up-to-2
store_origin: JP
region: Japan
---

# Gigabit Ethernet Ports Up to 2,000 Sq.ft. Mesh Coverage AC1900 Dual-Band WiFi Speed Deco S4 Whole Home Mesh WiFi System - Up to 2,000 Sq.ft. Coverage, AC1900 WiFi Router/Extender Replacement, Gigabit Ports, Deco S4(1-Pack)

**Brand:** tp-link
**Price:** ¥16701
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your home WiFi game — stay connected, everywhere, effortlessly!

## Quick Answers

- **What is this?** Deco S4 Whole Home Mesh WiFi System - Up to 2,000 Sq.ft. Coverage, AC1900 WiFi Router/Extender Replacement, Gigabit Ports, Deco S4(1-Pack) by tp-link
- **How much does it cost?** ¥16701 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/231907130-deco-s4-whole-home-mesh-wifi-system-up-to-2)

## 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

- • **Robust Parental Controls:** Customize online access and block inappropriate content for every family member.
- • **Effortless Setup & Control:** Get online in minutes with the intuitive Deco app and Alexa voice commands.
- • **Seamless Whole-Home Coverage:** Eliminate dead zones with mesh tech that blankets up to 2,000 sq.ft.
- • **Future-Proof Gigabit Connectivity:** Dual Gigabit ports ensure blazing-fast wired connections for your devices.
- • **Smart Roaming for Uninterrupted WiFi:** Automatically switch to the strongest signal with a single network name.

## Overview

The TP-Link Deco S4 is a powerful AC1900 dual-band mesh WiFi system designed to cover up to 2,000 sq.ft. with seamless, stable internet. Featuring gigabit Ethernet ports, easy app-based setup, and smart roaming technology, it replaces traditional routers and extenders to deliver uninterrupted connectivity. Parental controls and compatibility with all major ISPs make it a versatile, reliable choice for modern homes.

## Description

TP-Link Deco Whole Home Mesh WiFi System– Up to 2,000 Sq.ft. Coverage, WiFi Router/Extender Replacement, Gigabit Ports, Parental Controls(Deco S4 1-Pack) 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: I'm a Network Tech, These are Awesome - I work as a data network technician, and these routers are awesome. I bought two 3-unit kits to build a WiFi mesh network for a customer on a large, multi-million dollar mountain property with four buildings including the main house. I was expecting to have to run network cables and utilize long-range point-to-point transceiver antennas to get WiFi to the farther outbuildings, but the Deco routers were pushing strong enough signal and automatically connected to each other in a such a way that cable runs and extra antennas weren't necessary. The routers were extremely easy to configure using the Deco app, and deploying them across the property was a breeze. The range on the units is impressive, easily covering 70+ feet and going through dense log-cabin walls. I was extremely impressed when one particular router which was too far away to communicate with the main unit had its traffic automatically routed through the next closest unit in a nearby building, daisy-chaining itself so that it could be connected and without any additional setup or configuration on my part. Speeds at all units were well within acceptable ranges, with all except one Deco getting over 100mbps download speeds. The mesh capabilities of the devices are very efficient and effective, with my mobile device automatically switching to the router with the best signal strength as I moved around the property. The Deco app made setup and management of the network very easy, with details like a network map, device heartbeat info, parental controls, and more. Adding all 6 routers to the network was easy and fast. This system ended up saving me time and materials, and saving my customer money because of how easy and effective it was at providing WiFi coverage around his property without the need for extra hardware or equipment.

## Features

- Add Deco S4(1-pack) to you existing TP-Link Deco Mesh WiFi system to expand your coverage. All TP-Link Deco Mesh WiFi can work together.
- 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: When paired with one or more Deco units, they will work seamlessly to create a WiFi mesh network that can cover homes up to 2,000 sq. ft. Say good bye to dead zones
- Seamless and Stable WiFi Mesh: Rather than wifi range extender that needs multiple network names and passwords, Deco S4 allows you to enjoy seamless roaming throughout the house, with a single network name and password.
- Deco Mesh Technology: When paired with one or more Deco units, they 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.
- Parental Controls: Limit online time and block inappropriate websites according to unique profiles created for each family member. It’s easy to keep your children safe while they’re online.
- Set Up in Minutes: Setup is a breeze with the Deco app available on your Android or iOS device. Turn on/off guest WiFi with Alexa voice commands.
- 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 | B08HC6MMVP |
| Antenna Location | Home |
| Antenna Type | Internal |
| Best Sellers Rank | #508 in Electronics ( See Top 100 in Electronics ) #5 in Whole Home & Mesh Wi-Fi Systems |
| Brand | TP-Link |
| Built-In Media | 1 RJ45 Ethernet Cable, 1 power adapter, 1 quick installation guide |
| Color | Black, White |
| Compatible Devices | Personal Computer |
| Connectivity Technology | Ethernet, Wi-Fi |
| Control Method | App |
| Controller Type | amazon_alexa, vera |
| Coverage | 2000 square foot |
| Customer Reviews | 4.4 out of 5 stars 30,607 Reviews |
| Data Transfer Rate | 300 Megabits Per Second |
| Frequency | 5 |
| Frequency Band Class | Dual-Band |
| Has Internet Connectivity | Yes |
| Has Security Updates | Yes |
| Is Electric | Yes |
| Is Modem Compatible | Yes |
| Item Dimensions L x W x H | 3.6"L x 3.6"W x 6.4"H |
| LAN Port Bandwidth | 1000 Mbps |
| Manufacturer | TP-Link |
| Maximum Upstream Data Transfer Rate | 950 Megabits Per Second |
| Model Name | Deco S4(1-pack) |
| Model Number | Deco S4(1-pack) |
| Number of Antennas | 3 |
| Number of Ports | 3 |
| Operating System | Deco OS |
| Other Special Features of the Product | Access Point Mode |
| RAM Memory Installed | 256 MB |
| Router Firewall Security Level | Medium |
| Router Network Type | Mesh |
| Security Protocol | WPA-PSK, WPA2-PSK |
| Special Feature | Access Point Mode |
| UPC | 845973089740 840460605038 |
| Unit Count | 1.0 Count |
| Voltage | 100240 Volts |
| Warranty Description | Manufacture's 2-year Warranty |
| Wireless Communication Standard | 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n |
| Wireless Compability | 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n |

## Product Details

- **Brand:** TP-Link
- **Model Name:** Deco S4(1-pack)
- **Special Feature:** Access Point Mode
- **Frequency Band Class:** Dual-Band
- **Wireless Communication Standard:** 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n
- **Compatible Devices:** Personal Computer
- **Recommended Uses For Product:** Home
- **Included Components:** 1 RJ45 Ethernet Cable, 1 power adapter, 1 quick installation guide
- **Connectivity Technology:** Ethernet, Wi-Fi
- **Color:** Black, White

## Images

![Deco S4 Whole Home Mesh WiFi System - Up to 2,000 Sq.ft. Coverage, AC1900 WiFi Router/Extender Replacement, Gigabit Ports, Deco S4(1-Pack) - Image 1](https://m.media-amazon.com/images/I/61qUcMGJe4L.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.

### ⭐⭐⭐⭐⭐ I'm a Network Tech, These are Awesome
*by M***E on September 22, 2025*

I work as a data network technician, and these routers are awesome. I bought two 3-unit kits to build a WiFi mesh network for a customer on a large, multi-million dollar mountain property with four buildings including the main house. I was expecting to have to run network cables and utilize long-range point-to-point transceiver antennas to get WiFi to the farther outbuildings, but the Deco routers were pushing strong enough signal and automatically connected to each other in a such a way that cable runs and extra antennas weren't necessary. The routers were extremely easy to configure using the Deco app, and deploying them across the property was a breeze. The range on the units is impressive, easily covering 70+ feet and going through dense log-cabin walls. I was extremely impressed when one particular router which was too far away to communicate with the main unit had its traffic automatically routed through the next closest unit in a nearby building, daisy-chaining itself so that it could be connected and without any additional setup or configuration on my part. Speeds at all units were well within acceptable ranges, with all except one Deco getting over 100mbps download speeds. The mesh capabilities of the devices are very efficient and effective, with my mobile device automatically switching to the router with the best signal strength as I moved around the property. The Deco app made setup and management of the network very easy, with details like a network map, device heartbeat info, parental controls, and more. Adding all 6 routers to the network was easy and fast. This system ended up saving me time and materials, and saving my customer money because of how easy and effective it was at providing WiFi coverage around his property without the need for extra hardware or equipment.

### ⭐⭐⭐⭐⭐ 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 Whole Home Mesh WiFi System (Deco S4) – Up to 2,000 Sq.ft. Coverage, AC1900 WiFi Router/Extender Replacement, Gigabit Ports, 1-Pack
- Vabogu Cat 8 Ethernet Cable, 5ft Heavy Duty High Speed Internet Network Cable, 26AWG, 2000MHz 40Gbps with Gold Plated RJ45 Connectors, Shielded for Indoor & Outdoor Use
- TP-Link AC1200 WiFi Extender, 2025 Wirecutter Best WiFi Extender, 1.2Gbps home signal booster, Dual Band 5GHz/2.4GHz, Up to 1600 Sq.ft and 32 Devices, EasyMesh Compatible, One Ethernet Port (RE315)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*