Are we talking about enterprise class NAS or just a networked hard drive for home/small office use?
Network-attached storage (NAS) is file-level computer data storage connected to a computer network providing data access to heterogeneous clients. Day to day NAS devices are very popular due to its convenient method of sharing files between multiple computers.
The benefits are :
Data Protection, Efficiency and Reliability, Flexibility, Easy to Use, Faster data access, Easier for administration, and simple configuration. It supports almost 100-150 connections.