The drawers are the same and can be moved from a 2big Network 1 to a 2big NAS device, HOWEVER it would be necessarily to perform a factory reset on the 2big NAS once the drives are installed, and all user data will be erased. The 2big NAS device uses a different operating system than the 2big Network 1 and the two are not interchangeable. A backup should be done before proceeding if customer wants to keep his data.