# SONOFF S41STPB

*SONOFF / S41STPB*

> The S41STPB (S41s) needs a 2.4 GHz Wi-Fi network and a Matter controller on the home network. It is a 120 V plug rated 15 A / 1800 W that works with HomeKit, Google Home and Alexa. It suits HomeKit, Google Home, Alexa and SmartThings users, with native support through Matter over Wi-Fi. Home Assistant users reach it through an integration (Matter over Wi-Fi).

- Canonical page: https://smarthomecanon.com/devices/sonoff-s41stpb
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Plug |
| Model numbers | S41STPB |
| Status | Current[^1] |
| Radio | Matter over Wi-Fi[^1] |
| Plug type | Type B[^1] |
| Max load | 1800 W[^1] |
| Energy monitoring | unknown |
| Zigbee router | unknown |

## Integration paths

**How the SONOFF S41STPB connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) | 2.4 GHz Wi-Fi network, A Matter controller on the home network[^1] | Yes[^1] | unknown |

**Platform support for the SONOFF S41STPB**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Wi-Fi | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Native[^1] |  |
| Matter / Wi-Fi | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^1] |  |
| Matter / Wi-Fi | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^1] |  |
| Matter / Wi-Fi | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Native[^1] |  |
| Matter / Wi-Fi | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] |  |

## Related pages

- [SONOFF smart plugs](https://smarthomecanon.com/lines/sonoff-plugs) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Matter over Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: SONOFF store: SONOFF iPlug Gen2 S41s Matter Over WiFi Smart Plug | S41STPB. https://sonoff.tech/products/sonoff-iplug-gen2-s41s-matter-over-wifi-smart-plug-s41stpb (manufacturer, checked 2026-10-10)