Hi @Bypen,
Thanks for the inquiry about Roku cameras!
We understand you wanted to know more about the Roku cameras and if you could use NAS to record externally via DVR. We're happy to help. Please be advised that your Roku Smart Home camera can capture several types of recordings, including event, continuous, scheduled, and time-lapse. Some recording features are only available on specific smart home cameras. Recordings can be saved to the cloud when you purchase a Roku Smart Home Subscription or backed up to a microSD card. In addition to the previous recording features, you can manually capture a video or photo of the live video stream on both smart home cameras and video doorbells. Your recordings can only be viewed in the Roku Smart Home mobile app or from the microSD card. You can learn how to install and manage microSD card recordings.
Please let us know if there is anything else we can do to help you.
All the best,
John
John
Roku Community Moderator