Fact-checked May 20, 2026
Also called: Network Attached Storage
NAS stands for Network Attached Storage, which is a dedicated file storage device connected to your network that allows multiple users and devices to store and retrieve data from a central location.
Network Attached Storage (NAS) is essentially a smart hard drive that plugs into your home or office network. Instead of being directly connected to one computer, like an external hard drive, a NAS is accessible by all authorized devices on the network. This means everyone can share files, back up their devices, or even stream media from one central place.
Think of it as your own private cloud storage but located physically in your space. NAS devices are often used by small businesses for shared file access and backups, or by individuals for media servers, personal cloud alternatives, and redundant data storage. They typically run their own operating system and offer various features like remote access, user management, and data protection options through RAID configurations.
Key benefits of using a NAS include centralized data storage, easy file sharing among multiple users, and built-in redundancy to protect against data loss. Many models also offer apps and services, turning them into versatile home or office servers for tasks beyond just file storage.
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