A NAS device is a storage device that is connected to a network, allows data storage and retrieval from a central location. It can be used by authorized network users or clients. Flexible and expandable, NAS devices can be expanded as needed. NAS can be compared to having a private cloud at work. You have complete control and it’s quicker than a public cloud. Network-attached Storage (NAS) allows multiple users to access the same file storage. A standard Ethernet connection allows users to access shared storage from a local network ( LAN). Read more..