Reviews Blink Sync Module XR review: Network storage on a budget If you’re using Blink home security cameras—particularly the Blink Outdoor 4—you need this gadget on your network.

The Blink Sync Module XR lets you place the Blink Outdoor 4 up to 400 feet away from your home, giving your security system additional flexibility.

Once the sync module is working, you can add cameras. This involves levering the back off each camera (this is the hard part) and inserting the batteries.