# Chamberlain myQ Chamberlain B4643ST

*Chamberlain myQ / B4643ST, B4643STMC*

> The Chamberlain B4643ST is a Wi-Fi garage door opener controlled through the myQ app with a 3/4 HP motor and belt drive. It has a built-in camera. It does not support Home Assistant.

- Canonical page: https://smarthomecanon.com/devices/chamberlain-b4643st
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Chamberlain myQ](https://smarthomecanon.com/brands/chamberlain) |
| Category | Garage door opener |
| Model numbers | B4643ST, B4643STMC |
| Status | Current[^1] |
| Series | Wi-Fi openers with a yellow learn button[^1] |
| Drive | Belt[^1] |
| Motor | 3/4 HP[^1] |
| Motor type | DC motor[^1] |
| Battery backup | No[^1] |
| Built-in camera | Yes[^1] |
| Light | Integrated 1000 lm LED[^1] |

## Integration paths

**How the Chamberlain myQ Chamberlain B4643ST connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | Wi-Fi network, myQ app[^1] | unknown | unknown |

**Platform support for the Chamberlain myQ Chamberlain B4643ST**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Wi-Fi cloud | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | unknown |  |
| Wi-Fi cloud | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.liftmaster.myq |

## Related pages

- [Chamberlain Wi-Fi garage door openers](https://smarthomecanon.com/lines/chamberlain-wi-fi-garage-door-openers) (line)
- [Chamberlain myQ](https://smarthomecanon.com/brands/chamberlain) (brand)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: B4643ST Secure View Camera Ultra-Quiet Wi-Fi Garage Door Opener - Chamberlain US. https://www.chamberlain.com/secure-view-camera-ultra-quiet-wi-fi-garage-door-opener/p/B4643STMC (manufacturer, checked 2026-10-16)