A Network Attached Storage (NAS) drive is one of the most practical investments you can make for your home network. It gives you a private, always-on file server that sits on your home network, accessible from every device in the house — and, with the right configuration, from anywhere in the world. Unlike cloud storage subscriptions, a NAS puts you in complete control of your data, with no monthly fees and no third-party access to your files.
This guide walks you through everything you need to know to choose, set up, and get the most from a home NAS in the UK — from picking the right hardware to configuring remote access and automated backups.
What Is a NAS Drive and Why Do You Need One?
A NAS (Network Attached Storage) device is essentially a small, low-power computer dedicated to storing and serving files across your home network. It connects to your router via Ethernet and runs its own operating system, making it accessible to every device on your network — Windows PCs, Macs, smartphones, smart TVs, and more.
Common home uses include:
- Centralised media library — store your films, music, and photos in one place and stream them to any device using Plex or Jellyfin
- Automatic photo backup — replace iCloud or Google Photos with your own private backup solution
- PC and laptop backup — use Time Machine (Mac) or Windows Backup to automatically back up every computer in the house
- Home office file server — share documents, spreadsheets, and project files between family members or home-office devices
- Personal cloud storage — access your files remotely without paying for Dropbox or OneDrive
Choosing the Right NAS: Key Specifications Explained
Number of Drive Bays
NAS devices come with 1, 2, 4, 6, or more drive bays. For most home users, a 2-bay NAS is the ideal starting point. Two bays allow you to run RAID 1 (mirroring), where both drives hold identical copies of your data — if one drive fails, your data is safe on the other. A 4-bay NAS makes sense if you need more storage capacity or want more advanced RAID configurations.
Processor and RAM
The processor determines what your NAS can do beyond basic file storage. Entry-level NAS devices use ARM-based processors (such as the Realtek RTD1619B in the Synology DS223j) and are fine for file sharing and basic backups. If you want to run Plex with hardware transcoding, host multiple Docker containers, or use the NAS as a home server, look for an Intel Celeron or similar x86 processor — found in models like the Synology DS423+.
Network Connectivity
Most home NAS devices include a single Gigabit Ethernet port, which provides theoretical transfer speeds of up to 125 MB/s — more than adequate for streaming 4K video or backing up files. Higher-end models offer 2.5GbE or even 10GbE ports for faster transfers, though your router and network switches must also support these speeds to benefit.
Recommended NAS Devices for UK Home Users (as of September 2026)
Best for Beginners: Synology DiskStation DS223j
The Synology DS223j is the most beginner-friendly 2-bay NAS available in the UK. It runs Synology's excellent DiskStation Manager (DSM) operating system, which is widely regarded as the most polished and user-friendly NAS software on the market. The DS223j is powered by a Realtek RTD1619B quad-core 1.7 GHz processor with 512 MB of DDR4 RAM, and supports drives up to 20 TB each — giving a maximum raw capacity of 40 TB.
Priced at approximately £149–£169 (as of September 2026, prices subject to change) at Amazon UK and Scan Computers, the DS223j is an excellent entry point. Note that drives are sold separately.
Best Mid-Range 2-Bay: Synology DiskStation DS223
A step up from the DS223j, the Synology DS223 uses a Realtek RTD1619B processor but includes 2 GB of DDR4 RAM (expandable to 6 GB), making it better suited to running multiple applications simultaneously — such as Plex, Synology Drive, and Surveillance Station at the same time. It also supports M.2 NVMe SSD caching via an expansion card, which can significantly improve performance for frequently accessed files.
Available at Amazon UK and Scan Computers for approximately £199–£229 (as of September 2026, prices subject to change).
Best for Power Users: Synology DiskStation DS423+
If you want to run Plex with hardware transcoding, host Docker containers, or use your NAS as a full home server, the Synology DS423+ is the recommended choice. It features an Intel Celeron J4125 quad-core 2.0 GHz processor (burst up to 2.7 GHz), 2 GB of DDR4 RAM (expandable to 6 GB), and four drive bays. The Intel processor enables hardware transcoding in Plex, meaning it can convert video formats on the fly without straining the CPU.
Priced at approximately £399–£449 (as of September 2026, prices subject to change) at Amazon UK and Scan Computers.
Budget Alternative: QNAP TS-233
The QNAP TS-233 is a capable 2-bay NAS at a lower price point, running on a Cortex-A55 dual-core 2.0 GHz processor with 2 GB of DDR4 RAM. QNAP's QTS operating system is feature-rich, though it has a steeper learning curve than Synology's DSM. Available at Amazon UK and Ebuyer for approximately £129–£149 (as of September 2026, prices subject to change).
Choosing NAS Hard Drives
Standard desktop hard drives are not designed for the always-on, vibration-prone environment of a NAS enclosure. You should always use NAS-rated drives, which are built for 24/7 operation and include vibration compensation technology.
Recommended NAS Drives Available in the UK
| Drive | Capacity | Approx. UK Price (Sep 2026) | Where to Buy |
|---|---|---|---|
| Seagate IronWolf ST4000VN006 | 4 TB | £89–£99 | Amazon UK, Scan Computers |
| Seagate IronWolf ST8000VN004 | 8 TB | £149–£169 | Amazon UK, Scan Computers |
| WD Red Plus WD40EFPX | 4 TB | £89–£99 | Amazon UK, Scan Computers |
| WD Red Plus WD80EFPX | 8 TB | £149–£169 | Amazon UK, Scan Computers |
All prices are approximate as of September 2026 and are subject to change. Always check current pricing at your chosen retailer before purchasing.
For a 2-bay NAS running RAID 1, you will need two identical drives. Two 4 TB IronWolf drives give you 4 TB of usable, mirrored storage — a solid starting point for most households.
Step-by-Step: Setting Up Your NAS
Step 1: Physical Setup
- Unbox the NAS and install your hard drives into the drive bays. Most NAS enclosures are tool-free for 3.5-inch drives — simply slide the drive into the tray and click it into place. 2.5-inch drives typically require four small screws.
- Connect the NAS to your router using the supplied Ethernet cable. A wired connection is strongly recommended for reliability and speed — avoid Wi-Fi for a NAS if at all possible.
- Plug in the power adapter and press the power button. The NAS will take a minute or two to boot up.
Step 2: Initial Software Setup (Synology DSM)
- On a computer connected to the same network, open a web browser and navigate to find.synology.com. The Synology Web Assistant will detect your NAS automatically.
- Click Connect and follow the on-screen instructions to install DiskStation Manager (DSM). The installation process takes approximately 10 minutes and will format your drives.
- Create an administrator account with a strong, unique password. Enable two-factor authentication (2FA) at this stage — this is important for security, especially if you plan to enable remote access.
- Run the Storage Manager setup wizard. For a 2-bay NAS with two identical drives, select SHR (Synology Hybrid RAID) or RAID 1 — both provide mirroring. SHR is slightly more flexible if you plan to add drives of different sizes later.
Step 3: Create Shared Folders and User Accounts
- In DSM, open Control Panel → Shared Folder and create folders for your different use cases — for example: Photos, Documents, Media, Backups.
- Create user accounts for each family member via Control Panel → User & Group. Assign appropriate permissions to each shared folder — for example, children's accounts might have read-only access to the Media folder but full access to their own personal folder.
Step 4: Map the NAS as a Network Drive on Windows
- Open File Explorer and right-click This PC, then select Map network drive.
- Choose a drive letter and enter the NAS address in the format \\NAS-NAME\SharedFolderName (replace NAS-NAME with your NAS's hostname, visible in DSM).
- Tick Reconnect at sign-in and enter your NAS username and password when prompted.
- The shared folder will now appear as a drive in File Explorer, just like a local hard drive.
Step 5: Set Up Automatic Backups
Backing Up Windows PCs
Install the Synology Active Backup for Business agent on your Windows PC (available free from the Synology Package Centre). This allows scheduled, incremental backups of your entire PC to the NAS, with the ability to restore individual files or perform a full system restore.
Backing Up Macs with Time Machine
In DSM, open Control Panel → File Services → Advanced and enable the Time Machine service. On your Mac, open System Settings → General → Time Machine, click Add Backup Disk, and select your NAS. Time Machine will automatically back up your Mac on an hourly basis.
Backing Up Smartphones
Install the Synology Photos app on your iPhone or Android device. Enable Mobile Backup in the app settings to automatically upload new photos and videos to your NAS whenever you are connected to your home Wi-Fi network.
Setting Up Remote Access
One of the most useful features of a home NAS is the ability to access your files from anywhere. Synology's QuickConnect service makes this straightforward without requiring any router configuration.
- In DSM, open Control Panel → QuickConnect and sign in with (or create) a free Synology account.
- Choose a QuickConnect ID — this becomes your personal address for accessing the NAS remotely.
- Install the Synology Drive app on your smartphone or the Synology Drive Client on your laptop. Sign in with your Synology account and QuickConnect ID to access your files from anywhere.
For more advanced users, setting up a VPN server on the NAS (using Synology's built-in VPN Server package) provides a more secure method of remote access, routing all traffic through an encrypted tunnel rather than relying on Synology's relay servers.
Setting Up Plex Media Server
If you want to use your NAS as a media server to stream films and TV shows to any device in your home (or remotely), Plex is the most popular solution.
- In DSM, open the Package Centre and search for Plex Media Server. Install it (it is free).
- Open Plex Media Server and sign in with a free Plex account.
- Add your media libraries by pointing Plex to the shared folders on your NAS where your films, TV shows, and music are stored.
- Install the Plex app on your smart TV, Fire TV Stick, Apple TV, smartphone, or any other device. Sign in with your Plex account to access your media library.
Note: hardware transcoding in Plex (which allows the NAS to convert video formats on the fly for devices that cannot play certain file types) requires a Plex Pass subscription (approximately £3.99/month or £39.99/year as of September 2026, prices subject to change) and a NAS with a compatible Intel processor, such as the Synology DS423+.
Important Security Considerations
- Keep DSM updated — Synology releases regular security updates. Enable automatic updates in Control Panel → Update & Restore.
- Use strong, unique passwords for all NAS user accounts and enable two-factor authentication for the administrator account.
- Disable the default admin account — create a new administrator account with a different username and disable the built-in "admin" account to reduce the risk of brute-force attacks.
- Enable the firewall in Control Panel → Security → Firewall and restrict access to only the ports and IP ranges you need.
- Follow the 3-2-1 backup rule — keep 3 copies of your data, on 2 different media types, with 1 copy offsite. Your NAS is not a backup in itself; consider also backing up critical data to an external drive or a cloud service such as Backblaze B2.
Pros and Cons of a Home NAS
Pros
- Complete ownership and control of your data — no third-party access
- No ongoing subscription fees (beyond optional services like Plex Pass)
- Expandable storage — add larger drives as your needs grow
- Versatile — file server, media server, backup server, and more in one device
- RAID protection against drive failure
Cons
- Higher upfront cost compared to a cloud storage subscription
- Requires some technical knowledge to set up and maintain
- Not a substitute for offsite backup — a house fire or flood would destroy both the NAS and its data
- Power consumption (typically 15–30W) adds a small ongoing electricity cost
Typical Setup Costs
| Component | Recommended Option | Approx. UK Price (Sep 2026) |
|---|---|---|
| 2-bay NAS enclosure | Synology DS223j | £149–£169 |
| 2× 4 TB NAS drives | 2× Seagate IronWolf ST4000VN006 | £178–£198 |
| Total (entry-level setup) | £327–£367 |
All prices are approximate as of September 2026 and are subject to change. Check current pricing at Amazon UK, Scan Computers, or Ebuyer before purchasing.
Final Thoughts
A home NAS is one of those purchases that, once set up, you wonder how you managed without it. The combination of centralised storage, automatic backups, private photo libraries, and media streaming makes it an incredibly versatile addition to any home network. For most UK households, the Synology DS223j paired with two Seagate IronWolf or WD Red Plus drives represents the best balance of price, ease of use, and capability.
The initial setup takes a couple of hours, but once it is running, a NAS largely looks after itself — quietly backing up your devices, serving your media, and keeping your files safe, all without a monthly subscription fee.
