Sync Module 2 Technical Details

The Sync Module 2 is our latest control unit that manages communications between your Blink devices and our secure servers. Now with a port for your thumb drive, you can save Clip Backups or use Local Storage.

A system is managed by a Sync Module and can include up to ten devices. You should set up a Sync Module first, then attach Blink devices by selecting the Sync Module system during installation. The Blink Video Doorbell and Mini camera can create and manage their own system, or you can choose a Sync Module system during setup for group scheduling and other features.

Click to visit the Sync Module 2 FAQs‍, or Local Storage Troubleshooting‍ pages.

Sync Module 2 Specifications

Wi-Fi Internet Always-on broadband connection
Upload Speed 2 MB per second (minimum)
Power 5 volt 1 Amp DC
Operating temperature 32° to 95° F (0° to 35° C) Designed for indoor use
Frequency Range 2.4 Ghz Wi-Fi
~900 Mhz Blink Low Frequency Radio
Signal Strength Using the Blink app Sync Module Settings screen, you should have "three bars"   of connectivity. You can move the Sync Module and Wi-Fi router to find the best balance of signal strengths.

USB Storage Specification

File format H.264  .mp4
USB port  Type A
USB Drive size 1 GB to 256 GB    (with at least 375MB free)
Drive format ExFAT (preferred)   FAT32, FAT (MS-DOS)

Clip Naming Convention

Clips are named according to the time that the file was saved on the Blink server. Blink servers use Coordinated Universal Time, or UTC. When these same clips appear in the Blink app, you see the corrected time for your device's time zone. When the drive is full, no more clips are saved. You must remove clips either in the Blink app, or manually, on a computer.

When you access the USB drive on a computer, the filenames are still in UTC, so apply the time difference to find a certain clip. For instance, US Eastern Standard Time is 5 hours 'earlier' than UTC. If you were looking for a clip that occurred at 5pm local time, the filename would show "2200", or 10pm UTC.

When you first insert a USB drive, the formatting is checked and you are asked permission to reformat the drive if necessary. You can grant permission, or you can remove the drive from the sync module and reformat the drive on your computer.

Supported Formats

  • ExFAT (preferred)
  • FAT32 (this format stores a maximum of 16,383 clips per day)
  • FAT (MS-DOS)

Filename Conventions

Clip Backups

Clip Backups are found on the USB drive in the blink_backup folder. The image below shows a file explorer.


This folder contains backup clips from eligible cameras.


This folder indicates a two digit year "20" for 2020, and two-digit month "09" for September.


The filename shows: Day of the month - Hour - Minutes - Seconds _ Camera Name _ Camera ID . mpeg 4 format

Local Storage

Local Storage clips are found on the USB drive in the blink folder. The image below shows a file explorer.


This folder contains clips from eligible cameras.


This folder indicates a two digit year "21" for 2021, and two-digit month "05" for May.


This folder indicates a two digit year "21" for 2021, a two-digit month "05" for May, and a two-digit date "02" for the second day of the month.


The filename shows: Hour - Minutes - Seconds _ Camera Name _ Clip Number . mpeg 4 format

Additional resources.

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