Today I helped a customer who wanted to use Data Backup 3 to clone their Mac hard drive. He was replacing his Mac hard drive with a new SSD and he wanted a clone backup of his current hard drive so he keep his applications, preferences, and settings the same when he changes drives. I guided him in how to set up his clone backup to an external hard drive in Data Backup 3. When that completed he checked to make sure that he could startup his computer using the external drive and this was successful. He was able to startup using the clone on his external drive and his computer was exactly the way he had it on his current internal drive with his preferences, settings, and applications. Now after he removes his Mac hard drive and replaces it with his new SSD he will be able to clone his external drive to the SSD and he will be set.