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Kasa EP40M

Kasa / EP40M

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Does the Kasa EP40M work with HomeKit, Alexa, and Google Home?

The Kasa EP40M is the outdoor plug on Matter.

It works with HomeKit, Alexa, Google Home and SmartThings through Matter, is IP64 rated, and switches its two outlets separately. It suits HomeKit, Google Home, Alexa and Home Assistant users, with native support through Matter over Wi-Fi. SmartThings users get native support through the maker's cloud.

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Yes[1]
Matter / Wi-Fi, native
Google Home
Yes[1]
Matter / Wi-Fi, native; 1 other path
Alexa
Yes[1]
Matter / Wi-Fi, native; 1 other path
SmartThings
Yes[1]
Wi-Fi cloud, native
Home Assistant
Yes[2–4]
Matter / Wi-Fi, native; 1 other path

Key facts

Kasa EP40M facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[1][5]
TypeOutdoor plugs[1]
MatterYes[1][2][6]
HomeKitHomeKit via Matter[1]
Energy monitoringunknown
Outlets2[1]
Max load15 A and 1875 W in total, 1/2 HP motor[1]
ConnectivityWi-Fi 2.4 GHz[1]
Releasedunknown
Weather ratingIP64[1]

Integration paths

How the Kasa EP40M connects

2 pathsHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Matter / Wi-Fi2.4 GHz Wi-Fi network, Matter-compatible app[1]unknownunknown
Wi-Fi cloud2.4 GHz Wi-Fi network, Kasa Smart app and account[1]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the Kasa EP40M

2 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantNative (local)[4]tplinkWi-Fi cloud
  • Quality: Platinum[4]
  • IoT class: Local Polling[4]
  • Works with Home Assistant: Not certified[4]
Model namedLimited: Needs TP-Link cloud account credentials to authenticate for local control.; Energy-monitoring state of power-strip child plugs updates only every 60 seconds.[4]
Home AssistantVia Matter[2][3] (Matter certified; Home Assistant does not name the model)matterMatter / Wi-Fi
  • Quality: No score[2][3]
  • IoT class: Local Push[2][3]
  • Works with Home Assistant: Not certified[2][3]
Model namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Releases

  1. 2023
    1. Certified Certified, not announced [2]

      First Matter certificate.

Certifications

Certification records

1 recordHow facts are sourced: every cell cites its source below
ProgramCertificateCertified onTransportSpec / softwareSource
MatterCSA23176MAT40689-24unknown1.0.0[2]

Cite this page

Kasa EP40M. Smart Home Canon. https://smarthomecanon.com/devices/kasa-ep40m. Last checked 2026-10-20.

Sources

  1. [1]
    MFRkasasmart.com / Kasa Smart Wi-Fi Outdoor Plug, Matter (EP40M) - Kasa Smart US
    Accessed Back to text
  2. [2]
    CSAon.dcl.csa-iot.org / Matter DCL compliance: Kasa EP40M, PID 258
    Accessed Back to text
  3. [3]
    DOChome-assistant.io / Home Assistant: Matter integration
    Accessed Back to text
  4. [4]
    DOChome-assistant.io / TP-Link Smart Home - Home Assistant integration
    Accessed Back to text
  5. [5]
    MFRkasasmart.com / Kasa Smart US: smart plugs listing
    Accessed Back to text
  6. [6]
    MFRtp-link.com / TP-Link Matter-Certified Devices
    Accessed Back to text