The very purpose of your NAS is to share files between people and devices. A NAS can surely work as a central storage unit, but to make it live its full purpose, you will have to give it a way to talk to devices for file sharing and syncing. There is a simple and reliable way built into the systems we use daily for exactly that, and it’s called SMB. While the name may not sound glamorous, it’s been the backbone of file sharing for decades.

Here’s why SMB remains the most practical and universal way of sharing files on your home network.

6 It just works everywhere

The perks of being universal

The biggest reason why SMB still shines is its universality. You never have to wonder if your device supports it — chances are, it already does. All mainstream computer operating systems, like Windows, macOS, and Linux, have it baked in, while even mobile platforms can tap into an SMB share through either native or third-party apps.

This common language lets your NAS talk to your client devices with ease and reliability — in fact, I’ve had a better experience with SMB than with its alternatives. My Windows laptop could easily map my NAS to File Explorer, and it has worked absolutely well ever since. There are no other pieces to play with; everything works natively.

5 Simple and familiar

You know what you’re doing

SMB is one of those rare things in tech that feels intuitive from the get-go. You can right-click on a Windows machine to share a folder — simple. On Mac and Linux, enabling file sharing is just a toggle away. And when you try to map drives, the protocol makes it feel like they are just another local folder.

It’s the definition of “it just works,” and you don’t need to explain to your family or new coworkers how it works. There is no special setup, which means it’s easy to launch and has fewer things that can break.

4 Fast enough for home needs

Your home setup is sorted

When it comes to speed, SMB won’t disappoint you. The modern SMB 3 standard can make good use of 2.5GbE bandwidth, and if you’ve still got gigabit networking, it can saturate it while still feeling snappy. What it basically means is that your large file transfers and sync tasks won’t feel like waiting during the dial-up days.

And since you are not throttled by internet speed and not required to upload those files first before downloading elsewhere, as you would with cloud storage, the transfers feel instantaneous and smooth. If you’re setting up a NAS at home, you can easily get by with an SMB setup.

3 Flexible sharing and access control

Go as granular as you can

It’s quite an underrated feature of SMB, but you can actually get quite granular with your sharing options. You can have a family photos folder that everyone has access to, or create a private folder with work files that only you can access. In fact, it lets you go further with read-only sharing options, say for kids, to fine-tune the permissions for specific users.

All this control makes it adaptable to varied household needs, so you can get your setup customized to your use case. SMB integrates well with shared family use or separate personal spaces — everything is configurable.

2 Offline and local

Safety is paramount

The best kind of digital safety is when you’re cut off from the internet, and that’s SMB for you. It doesn’t need the internet to function, which is its biggest strength — enabling both safety and privacy. Since it works offline, you get super-fast transfers and low latency. Unlike cloud storage, you aren’t relying on servers halfway around the world just to send a file across the room.

You feel it most when your internet dies, but you can continue to use SMB locally without any hiccups. That also means no logins or subscriptions — and certainly not any limits from a service provider. You are in full control of your data with zero compromises.

1 NAS and server-friendly

Your DIY servers are covered, too

If you’ve played around with a NAS or built your own Raspberry Pi server, you’d know that SMB is by far the easiest way to get files moving. All mainstream platforms — including Synology, QNAP, Unraid, TrueNAS, Proxmox, and others — support it natively. Even third-party tools like Plex and Jellyfin play nice with SMB.

It works as the baseline protocol for your storage server to bring it all together. Even if you decide to make your setup more complex with things like rsync or cloud sync, SMB would remain compatible and widely supported. This is what home servers are built on.

You’ve got options too

SMB may be one of the most universally compatible file-sharing protocols — something you need when you have a variety of platforms that must talk to each other in a common language. But there are alternatives like NFS that have their own perks and downsides. Your requirements will suggest which route you must take to make your setup work the best for you.