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TP-Link Deco S4

TP-LinkHome router

Deco S4

Released November 2022.6Maker product pagetp-link.com/us/support/download/deco-s4/v3.60Read 20 October 2026The oldest firmware listed for the AC1900 V3.60 hardware is 1.3.3 (build 221107), published 2022-11-17. The earlier AC1200 Deco S4 V2 had its first firmware on 2019-12-25 and the model name dates from then. The month is the best supported one for the AC1900 hardware and may be later than the real launch. Last checked 20 October 2026.

Form factor
Mesh system
Wi-Fi
Wi-Fi 5
Speed class
AC1900
WAN port
1Gbps

49 of 90 fields known.

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At a glance

Ports

  • 3 RJ45

All specs

SourceCalculated

General

Series
Deco1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026
Model numbers
Deco S4, Deco S4(1-pack), Deco S4(2-pack), Deco S4(3-pack)1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The US page shows hardware version V3.60 and a V1 selector. V1 is the AC1200 Deco S4. This product is the AC1900 hardware, which the US support pages list as V3.26, V3.46 and V3.60. The datasheets give the model as Deco S4 and name the 1, 2 and 3 packs Deco S4 (1-pack), (2-pack) and (3-pack).
GTIN / EAN
Not available
Announced
Not available
Status
Available1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The page, the support downloads and the Amazon US buy link are live. Firmware 1.5.2 is dated 2024-11-14 for V3.60.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
US1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026TP-Link US site.
Colours
White8Retailer pageamazon.com/dp/B084GTH5LLRead 20 October 2026Color: White. The listing title says TP-Link Deco S4 Mesh AC1900 WiFi System, Deco S4(3-Pack). The listing has one ASIN for several hardware versions and lists three Deco S4R units in the box, so its hardware facts are not used. It lists two UPCs (840460605014 and 845973089726), which cannot be tied to one version, so no GTIN is stored.
Form factor
Mesh system1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Whole Home Mesh Wi-Fi System sold as 1, 2 and 3 packs. All Decos work together, and each unit in a Deco S4 pack is the same.
Segment
Home1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Listed under Mesh WiFi, for home.

Wi-Fi

Wi-Fi
Wi-Fi 51Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026
Wi-Fi speed class
AC19001Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Speeds row: AC1900, 5 GHz 1300 Mbps (802.11ac) and 2.4 GHz 600 Mbps (802.11n).
Wi-Fi radios
BandWi-FiStreamsMax channel width (MHz)Max link rate (Mbps)Dedicated backhaul
2.4 GHzWi-Fi 4340600No
5 GHzWi-Fi 53801,300No
Source1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Standards row: 802.11ac/n/a on 5 GHz and 802.11n/b/g on 2.4 GHz. The page names 3x3 MU-MIMO and 3 internal antennas, so 3 streams are stored for both bands. The page prints no channel width. A 3x3 radio reaches 1300 Mbps only at 80 MHz (3 x 433.3) and 600 Mbps in the 2.4 GHz band only at 40 MHz with 256-QAM (3 x 200), so 80 and 40 are stored. The page shows no third radio, and its mesh diagram shows a dedicated backhaul only for other Deco models, so dedicated_backhaul is false.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Datasheet Deco S4(US) V3.6: signal rate 1300 Mbps at 5 GHz and 600 Mbps at 2.4 GHz, 802.11 a/n/ac on 5 GHz and b/g/n on 2.4 GHz.
Radio bands
2
6 GHz band
No
Combined Wi-Fi link rate
1,900Mbps
Wi-Fi streams
6
Max Wi-Fi channel width
80MHz
Wi-Fi features
MU-MIMO, Beamforming1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Capacity row lists MU-MIMO and Beamforming. The Dual-Band entry says devices are distributed to different bands, but the maker does not name band steering, so it is not stored.
External antennas
01Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The antennas are internal, so there are none outside the case.
Internal antennas
31Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 20263x Antennas (Internal).4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Antenna Type: 3 internal dual-band antennas per Deco unit.
Detachable antennas
No1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Internal antennas cannot be removed.
Coverage of one unit (claimed)
195m²1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Overview text: up to 2,100 sq. ft. for the 1-pack. Converted with 0.09290304 to 195.1 and rounded to 195 m2. The pack pages give 3,900 sq. ft. for the 2-pack and 5,600 sq. ft. for the 3-pack. Amazon and older TP-Link pages say 5,500 sq. ft. for the 3-pack. The maker's V3.60 page and datasheet are used.
Connected devices per unit (claimed)
1001Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Published as over 100 devices (Connect 100+ Devices). Stored as 100, the plus sign is dropped. The footnote says the number is not guaranteed.

Ports and modem

Ports
PortCountRoleMax speed (Gbps)
RJ453WAN or LAN1
Source1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Ethernet Ports: 3x Gigabit Ports per Deco unit, WAN/LAN auto-sensing. Only one port can serve as WAN at a time. No USB port is listed. The Amazon listing says 2 ports, which conflicts with the maker's page, datasheet and user guide. The maker is used.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Port: 3 WAN/LAN Gigabit Ethernet ports per Deco unit, 1 power port.5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Appearance: three RJ-45 Ethernet ports, a power slot and a reset button on each Deco.
Ethernet ports
3
Multi-gig ports
0
Fastest WAN port
1Gbps
Fastest LAN port
1Gbps
USB ports
0
SFP+ port
No
Built-in modem
Not available
Modem standards
Not available

Mesh

Mesh technologies
Deco Mesh1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Page text: advanced Deco Mesh Technology. It also uses the name TP-Link Mesh. The optional Ethernet backhaul links the units.
Units per pack
1, 2, 31Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026
Coverage of the pack (claimed)
195 to 520m²1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 20262Maker product pagetp-link.com/us/deco-mesh-wifi/product-family/deco-s4/v3.6%20(2-pack)Read 20 October 20263Maker product pagetp-link.com/us/deco-mesh-wifi/product-family/deco-s4/v3.6%20(3-pack)Read 20 October 20264Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026
Identical units
Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026
Satellite model
Not available
Satellite ports
Not available
Ethernet backhaul
Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Wireless connections and an optional Gigabit Ethernet backhaul link the Deco units.

Software

Management
Mobile app1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Management Features: Deco App. The page lists web server port 80/443 as a default network service, which is not a settings page.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Management: Local Management, Remote Management, Multi-Managers. The datasheet names no web interface.5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Setup and use are described through the Deco app for iOS and Android.
Online account required
Yes5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Setup step 2 of the user guide (REV3.6.0): log in or sign up with a TP-Link ID in the Deco app.
Operating modes
Router, Access point1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Working Modes: Router Mode and Access Point Mode.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026
Network features
Guest network, IoT network, IPTV, Dynamic DNS1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Guest Network 1x 5 GHz and 1x 2.4 GHz. IPTV: IGMP proxy, IGMP snooping, bridge, tag VLAN. DDNS: TP-Link. The IoT network comes from the firmware notes on the support page. Tag VLAN is part of IPTV, so VLAN is not stored. The page lists QoS by Device and Parental Controls (URL filtering, time controls). It names no subscription, but the Deco app also sells HomeShield tiers and no maker page says which Deco S4 features are free, so qos and parental_controls are not stored.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Guest Network 2.4 GHz x1 and 5 GHz x1. Features list TP-Link DDNS and VLAN.6Maker product pagetp-link.com/us/support/download/deco-s4/v3.60Read 20 October 2026Firmware 1.5.2 (build 20240927, published 2024-11-14) release notes: added IoT network function, NO-IP and DynDNS support, client isolation and static routes.
VPN server
Not available
VPN client
Not available
USB applications
Not available

Security

Wi-Fi security
WPA2-Personal, WPA3-Personal1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Encryption row: WPA-Personal and WPA2-Personal. WPA3 comes from the V3.60 firmware 1.5.2 release notes. WPA has no option.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Wireless Security: WPA-PSK/WPA2-PSK.6Maker product pagetp-link.com/us/support/download/deco-s4/v3.60Read 20 October 2026Firmware 1.5.2 release notes: support for WPA3.
Security service
Not available
Security service cost
Not available
Automatic firmware updates
Not available
Security updates until
Not available

Smart home

Thread border router
Not available
Matter controller
Not available
Zigbee hub
Not available
Bluetooth
Not available
Smart home platforms
Amazon Alexa1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Voice Control: pair with Alexa to control Deco S4 with voice commands.

Hardware

We could not find any of these 6 fields. Show them
System on chip
Not available
CPU cores
Not available
CPU clock
Not available
RAM
Not available
Flash storage
Not available
Cooling fan
Not available

Power

Power supply
External DC adapter4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026A separate power adapter (input 100-240 V, output 12 V DC) plugs into the unit's power port.
Rated power input
12 V, 1.5 A4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Power Adapter Output: 12 V 1.5 A. The adapter input is 100-240 V 50/60 Hz 0.6 A. The unit's DC input is the adapter output.
Included adapter output
18W4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 202612 V x 1.5 A is 18 W.
Power use (typical, claimed)
Not available
Power use (max, claimed)
15.7W4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Power Consumption (with power adapter): 15.7 W max.

Measured

We could not find any of these 6 fields. Show them
Wi-Fi throughput (measured)
Not available
Fastest Wi-Fi throughput (measured)
Not available
Wi-Fi throughput through a wall (measured)
Not available
Range (measured)
Not available
Power use under load (measured)
Not available
Energy use per day (measured)
Not available

Dimensions and weight

Front and side, drawn to scale.

Dimensions
Width90.7Height162.3Depth90.7mm(3.6 × 6.4 × 3.6 in)1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The page prints 162.3 x 90.7 x 90.7 mm under the label W x D x H, which is a mislabel. The datasheet and the Amazon listing give the height as 162.3 mm. Stored as height 162.3 and a 90.7 mm square footprint.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Dimensions (H x L x W): 6.4 x 3.6 x 3.6 in. (162.3 x 90.7 x 90.7 mm).8Retailer pageamazon.com/dp/B084GTH5LLRead 20 October 2026Item dimensions 3.57 in L x 3.57 in W x 6.39 in H, which agrees with the datasheet (90.7 x 90.7 x 162.3 mm).
Dimensions with antennas
Not available
Weight
Not available
Wall mountable
Not available

Certifications

Wi-Fi Alliance certification ID
Not available
FCC ID
Not available
Other certifications
FCC, RoHS1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Certification: FCC.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026

In the box

We could not find any of these 1 fields. Show them
In the box
Not available

Warranty

Manufacturer warranty (source market)
2years7Maker product pagetp-link.com/us/support/replacement-warrantyRead 20 October 2026Warranty periods for products purchased on or after 9/1/2023: Whole Home Wi-Fi / Mesh Wi-Fi / Deco, 2 years. US site. The Amazon US listing also says 2 year manufacturer.

Compare with

Pick a router to see both side by side. Differences are marked yellow.

More router comparisons

Variants

Each variant lists only what differs from the specs above.

Model numberMarketsUnits per packCoverage of the pack (claimed)In the box
Deco S4(1-pack)US1195 m²1 Deco S4 unit, 1 Power adapter, 1 RJ45 Ethernet cable, Quick Installation Guide
Deco S4(2-pack)US2362 m²2 Deco S4 units, 2 Power adapters, 1 RJ45 Ethernet cable, Quick Installation Guide
Deco S4(3-pack)US3520 m²3 Deco S4 units, 3 Power adapters, 1 RJ45 Ethernet cable, Quick Installation Guide

Sources

We read 8 sources for this router. The numbers match the markers in the sheet.

  1. Read 20 October 2026Backs 29 fields
  2. Read 20 October 2026Backs 1 field
  3. Read 20 October 2026Backs 1 field
  4. Maker spec sheet (PDF)tp-link.com/us/document/30123
    Read 20 October 2026Backs 15 fields
  5. Read 20 October 2026Backs 4 fields
  6. Read 20 October 2026Backs 3 fields
  7. Read 20 October 2026Backs 1 field
  8. Read 20 October 2026Backs 2 fields

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