# Tapo C121

*Tapo / C121*

> The Tapo C121 is a 4 MP (2K) camera that plugs in and carries an IP66 rating for indoor or outdoor use. RTSP and ONVIF allow local viewing, and Alexa and Google Assistant work with it. It suits Google Home and Alexa users, with native support through the maker's cloud.

- Canonical page: https://smarthomecanon.com/devices/tp-link-tapo-c121
- Last checked: 2026-10-09

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) |
| Category | Camera |
| Model numbers | C121 |
| Status | Current[^1] |
| Type | Indoor/outdoor camera: fixed[^2] |
| Resolution | 2K (2560 x 1440, 4 MP)[^2] |
| Power | Plug-in adapter[^2] |
| Weather rating | IP66[^2] |
| microSD max | 512 GB[^2] |
| RTSP / ONVIF | RTSP and ONVIF[^3] |
| HomeKit | unknown |
| Tapo hub | Works with H200 and H500 hubs[^4] |
| AI detection | Motion, person, vehicle, pet, line crossing, baby cry, meow, bark, glass breaking[^2] |
| Local API | RTSP and ONVIF (Profile S)[^3] |

## Integration paths

**How the Tapo C121 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Wi-Fi local](https://smarthomecanon.com/protocols/wifi-local) | Camera account created in the Tapo app, Camera and viewer on the same local network[^3] | Yes[^3] | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | 2.4 GHz Wi-Fi network[^2] | unknown | unknown |

**Platform support for the Tapo C121**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^2] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^2] |  |

## Related pages

- [TP-Link Tapo cameras and doorbells](https://smarthomecanon.com/lines/tp-link-tapo-cameras) (line)
- [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) (brand)
- [Wi-Fi with local control](https://smarthomecanon.com/protocols/wifi-local) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)

## Sources

[^1]: Tapo US store: Tapo C121 (2K QHD Indoor/Outdoor Security Camera Black, Tapo C121). https://us.store.tapo.com/products/tapo-c121-black (manufacturer, checked 2026-10-09)
[^2]: Tapo C121 product page (tp-link.com US). https://www.tp-link.com/us/home-networking/cloud-camera/tapo-c121/ (manufacturer, checked 2026-10-09)
[^3]: TP-Link support: How to View Tapo Camera on PC, NAS, or NVR Using RTSP/ONVIF. https://www.tp-link.com/us/support/faq/2680/ (manufacturer, checked 2026-10-09)
[^4]: TP-Link support: Which TP-Link Tapo Cameras/Devices Are Compatible with Tapo Hub. https://www.tp-link.com/us/support/faq/4191/ (manufacturer, checked 2026-10-09)