A:Answer Hi there! You can use local storage by plugging a USB drive into a Sync Module 2 or a micro SD card into a Sync Module XR, however this model doesn't come with either. This particular listing is for adding a doorbell to an existing Blink system that already features a Sync Module. If you'd like the Blink Video Doorbell you see here, I'd suggest picking up a separate Sync Module 2 to use the USB storage. If you run into any issues setting things up, you can always reach out via the app for some help. Personally I had to eject the USB drive in the app and re-insert it once or twice before things started working properly. I hope that helps, have a great rest of your day!