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The best NAS drives for homes and small businesses in 2024

Want to store your files securely without using the cloud? These are the best NAS solutions out there right now

If you’re a business owner, it makes perfect sense to invest in the best NAS drive you can afford. But network-attached storage isn’t just for big businesses. In most homes today you’ll find a plethora of desktops, laptops and mobile devices, so a central repository for your important files makes sense.

This will ensure that you can access your data from wherever you happen to be, even if you’re out on the road, thanks to the easy-to-use remote-access services that come as standard. And, if one of your hard drives fails, it’s good to know that a multi-disk RAID array is keeping your data safe. Better still, modern NAS appliances can also run all sorts of useful network applications, from media servers to databases, wikis and security camera management systems.

No matter what your needs, a NAS can help. We’re here to steer you towards the best NAS drives on the market right now, but before we do, here’s a guide to unscrambling the acronyms and choosing the best NAS appliance for you.

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How to choose the best NAS drive for you

What do all the acronyms mean?

Before we begin in earnest, here’s a brief index of confusing acronyms and what they mean for the newcomers out there:

  • NAS: Network-Attached Storage – a storage device that is attached to a local network. Storage manufacturer Seagate describes NAS as “like having a private cloud in the office”, and we think that’s spot on.
  • RAID: Redundant Array of Independent Disks – a method of storing the exact same data on multiple disks in case of hardware/software failure, which can also benefit performance.
  • JBOD: Just a Bunch Of Disks – no, seriously. JBOD allows you to take drives of varying sizes and combine them into a single volume.

All of the NAS drives on this list support JBOD and various RAID levels, from RAID1 to RAID10.

What type of NAS should I buy? And how many bays do I need?

NAS drives all come with a different number of drive bays, with consumer models generally coming in one-, two-, three- or four-bay variants.

A sensible minimum is a two-bay system, using two matching hard disks in a mirrored RAID1 configuration. That way, if one drive fails, you’ll still have a copy of all your data. Don’t be tempted to rely solely on JBOD or RAID0 configurations, however: these offer more capacity, but lack fault tolerance – if one drive fails, all your data is lost.

If you’re willing to spend a bit more, a four-bay NAS drive is more versatile. With four disks, you can set up a RAID5 array, which offers a better balance of capacity and data security. In this arrangement, a portion of each disk is reserved for parity data from the other three drives (which makes it possible to rebuild the array in the event of a failure). For example, with four 1TB drives, you can store up to 3TB of data, and if any single drive fails, you can simply drop in a replacement and carry on working.

Four-bay NAS appliances also tend to have additional features, such as more ports and LCD displays. But they’re naturally noisier and more power-hungry, as well as generally quite a bit more expensive.

What connections should I look out for?

Most NAS appliances offer one or more USB 3 ports, meaning you can hook up an external hard disk and share files over your network. There’s also often a connector at the front for one-touch copying: simply plug in a USB hard disk and press the copy button, and the contents of the external drive will be copied onto the NAS. If your data is currently scattered across a selection of external drives, it’s an easy way to consolidate all your files into one place.

You may also see HDMI and audio sockets for connecting a monitor and speakers directly to your NAS box. These let you use built-in apps to turn your appliance into a video player or audio jukebox. You may even be able to plug in a keyboard and mouse and run desktop apps on the NAS appliance, but don’t expect blazing performance as NAS hardware is quite lightweight by desktop PC standards.

How do I get the best performance?

Your NAS drive should be connected to a gigabit Ethernet port on your router. If your router only offers 100Mbits/sec Ethernet, your speeds will be severely limited: upgrading your router would be your first step to getting the best performance.

Even with a gigabit connection, don’t expect superfast file copies all the time. Speeds can top 100MB/sec for a single big file, but for a folder containing lots of small files, the file system overhead will mean things go a lot more slowly.

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Which disks should I use?

All the NAS drives we’ve recommended below can be bought diskless. The manufacturers normally recommend you populate them with specialist NAS disks such as the WD Red series, which are designed for heavy use and high-temperature environments. For a home NAS, though, that’s probably overkill – feel free to buy cheap consumer drives or to reuse disks from decommissioned PCs. Just make sure you have spares on hand for when one inevitably gives up the ghost.

What do I need to know about add-on apps?

Most modern NAS systems include all the basic services you need to work with Windows, macOS and Linux clients. They’ll also integrate with Apple’s Time Machine backup service and, for corporate roles, many support Active Directory and iSCSI, too.

On top of this, it’s well worth browsing the apps available, as these can greatly extend the capabilities of your NAS appliance. Most units come with a built-in “app store”, offering dozens or even hundreds of apps that you can install with a click. These invariably include a selection of media server apps, enabling your NAS to stream audio and video to smart devices in your home. You’ll also find business and development tools, surveillance apps that work with IP cameras and even content management systems such as WordPress.

One caveat: if you enable a whole load of apps and services, the hardware might start to struggle. If that’s a concern for you, pick a model with a powerful Intel processor and plenty of RAM, or one where you can fit extra memory as needed. If you’re not sure how much headroom you have, there’s normally an activity monitor within the appliance’s web interface, exposing what’s using its CPU and RAM, so you can spot any services that might be overtaxing your hardware.

Can I access my files remotely?

With the correct setup, you can access your NAS appliance from anywhere in the world. It’s a great alternative to cloud services such as Dropbox and Google Drive, with no monthly fee and a lot more storage. Every provider offers a bespoke service, typically web-based, which makes it effortless to securely access your files from a web browser.

Many providers also offer some degree of integration with third-party cloud services, meaning files in a certain folder on your NAS appliance can be automatically synchronised with your Dropbox account, and vice versa. This is handy if, for example, you want to use a printer or scanner that features Dropbox integration, as it saves you having to mess around moving files back and forth between services.

Is the data on my NAS completely safe?

Even RAID isn’t infallible. Your NAS box could be fried by a serious electrical fault or stolen in a break-in. Many NAS systems come with integrated support for offsite backup systems such as Amazon S3 or ElephantDrive, although these aren’t free. Alternatively, if you have access to a NAS appliance in a second location, most units will let you automatically replicate your data over the internet.

The other thing to remember is that a modern NAS is in effect a small computer, which means it’s vulnerable to hackers and malware just like any other computer. Install system updates as soon as they become available – most NAS appliances can do this automatically in the middle of the night to minimise disruption – and make sure your apps and services are up to date. That goes for all the other computers in your home, too – we’ve seen PC-based ransomware that specifically targets NAS appliances, and you definitely don’t want to get caught by that.

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The best NAS drives you can buy in 2024

1. Asustor Nimbustor AS5304T: Best NAS drive for streaming

Price: £439 (diskless) | Check price at Amazon

If you’re looking for a NAS for business or mainstream home use, consider any of the other NAS drives on this list. But if you’re looking for a great four-bay NAS for streaming, media and more, the AS5304T is the best by a country mile. By looking beyond the usually conservative NAS market, Asustor has produced something really special.

Powered by a blazingly quick quad-core Intel Celeron J4105 supported by up to 8GB of RAM, the AS5304T aced our 4K media benchmarks, even when running over a standard gigabit Ethernet network. It has space for four drives, and supports a wealth of RAID configurations; you’ll even find an HDMI port on the back for those days when you really want to use it as a Linux desktop PC.

With dashing good looks (for a NAS drive) and onboard software that’s perfect for developers, our only complaint about the AS5304T is the price. But if you have the cash to blow on a stunningly good media-streaming NAS, this is the device for you.

Key specs – CPU: Intel Celeron J4105 (1.5GHz to 2.5GHz, quad-core); RAM: 4/8GB; Drive bays: 4; RAID modes: JBOD, RAID0, 1, 5, 6, 10; Gigabit Ethernet connectors: 2 x 2.5GbE; Data connectors (rear): 2 x USB3.2; Data connectors (front): 1 x USB3.2; Other connectors: HDMI; Dimensions (WDH): 174 x 230 x 170mm; Warranty: 3yr RTB

2. Qnap TS-873A: Best for versatility

Price: From £869 (four-bay) | Check price at Amazon

As soon as you boot up the Qnap TS-873A, you’ll be asked to choose between two operating systems: the standard QTS platform or the advanced QuTS hero platform. The difference? Both support well over 100 applications, but where the standard QTS platform is ideally suited to users with low requirements and no desire to expand upon the 8GB of DDR4 RAM that comes pre-installed, the advanced QuTS platform comes loaded with enterprise-class data security and protection features. These include copy-on-write (COW) support to facilitate incredibly rapid and almost limitless snapshots; data corruption detection in the form of end-to-end checksums; and efficient storage management courtesy of inline deduplication and compression. The catch is that you’ll need a minimum of 16GB of RAM.

Running the show is a hefty quad-core, 2.2GHz AMD Ryzen V1500B CPU. On the front you’ll find from four to eight SATA drive bays that support both HDD and SSD storage types; these are joined by two internal M.2 NVMe SSD slots. Two 2.5GbE ports are at the rear; these offer a decent bump in speed over standard gigabit Ethernet but if that’s still not enough, two PCI-E slots lie waiting for 10GbE cards or similar compatible upgrades.

Throw in excellent read/write performance in our in-house tests and what you’ve got is a seriously versatile NAS appliance. It’s a shame that the QuTS platform requires that you upgrade the RAM, but both operating systems are strong performers and the surplus of spare slots should let you upgrade to your heart’s content.

Key specs – CPU: AMD Ryzen V1500B; RAM: 8GB; Drive bays: 8; RAID modes: RAID0 1, 5, 6, 10, 50, 60, Triple Parity, Triple Mirror (with QuTS); Gigabit Ethernet connectors: 2; Data connectors (rear): 3 x USB-A 3.2; Data connectors (front): 1 x USB-A 3.1; Other connectors: PCI-E expansion; Dimensions (WDH): 329 x 281 x 188mm; Warranty: 3yr hardware

3. Asustor Drivestor 4 Pro AS3304T: Best for families and home offices

Price: £329 (diskless) | Check price at Amazon

This stylish NAS does much the same job as the Nimbustor AS5304T above, but at £329 for the diskless enclosure it’s a lot cheaper. That’s largely down to the more lightweight ARM processor and 2GB of RAM, but there’s still enough power here to run Asustor’s curated collection of more than 140 installable apps. With its video-optimised design, the AS3304T can even serve up 4K media using Plex, Jellyfin, Emby and other video server platforms.

The four-bay design offers more data security and expansion options than any low-cost two-bay appliance, and an integrated 2.5Gbits/sec Ethernet connector means you can access your data at multi-gig speeds (when paired with a compatible router or switch).

Backup credentials are equally hard to fault. The NAS works with both Windows File History and Apple Time Machine, and can also handle regularly scheduled backups. The unit itself can be backed up to any local or remote destination, or to a range of cloud services. While the Nimbustor is a better choice for a heavy-duty role, the Drivestor 4 Pro gives home users the same great services for a superb price.

Key specs – CPU: Realtek RTD1296; RAM: 2GB; Drive bays: 4; RAID modes: RAID0 1, 5, 6; Gigabit Ethernet connectors: 1 (2.5GbE); Data connectors (rear): 2 x USB-A 3.2 Gen1; Data connectors (front): 1 x USB-A 3.2 Gen1; Other connectors: None; Dimensions (WDH): 174 x 170 x 230mm; Warranty: 3yr RTB

4. TerraMaster F5-221: Best cheap five-bay NAS drive

Price: £339 (diskless) | Check price at Amazon

As five-bay NAS appliances go, the TerraMaster F5-221 is an inexpensive option that ticks several important boxes. Courtesy of an Intel Celeron J1800 processor (backed up by 2 to 4GB of RAM), the F5-221 is no slouch, performing admirably in our file transfer and media benchmark tests. The headline feature is of course the five drive bays, which are cooled by two 82mm fans; it’s unlikely that you’ll fill all five at once, meaning the F5-221 is good for an upgrade further down the line.

While TerraMaster’s NAS software isn’t as slick as Asus’s or Synology’s, it’s quite well designed, giving you easy access to the usual management tools and features, useful dashboards and an app store with a bewildering range of add-on apps. We did experience a few niggling setup issues, but assuming everything goes smoothly, this is a good NAS for big demands and small wallets.

Key specs – CPU: Intel Celeron J1800 (2.4 to 2.58GHz dual-core); RAM: 2/4GB; Drive bays: 5; RAID modes: Single, JBOD, RAID0, RAID1, RAID5, RAID6, RAID10; Gigabit Ethernet connectors: 2; Data connectors (rear): 2 x USB 3; Data connectors (front): None; Other connectors: None; Dimensions (WDH): 225 x 227 x 136mm; Warranty: 2yr RTB

5. WD My Cloud Pro PR4100: Best mid-range NAS drive

Price: £490 (diskless) | Check price at Amazon

The My Cloud PR4100 looks pretty swish, with its two-line LCD status display and inset navigation buttons that let you cycle through various bits of system information. The web interface, meanwhile, is clean and accessible, ditching the familiar windowed approach in favour of a simple tab-driven graphical interface.

A decent selection of add-ons is supported, including media servers, a surveillance service and a decent selection of productivity and techie extensions. If you want to get ambitious, you can upgrade the RAM to 16GB if you wish – although there’s no way to play media locally, nor any support for desktop apps or virtualisation, which raises the question of what WD thinks you might need all that memory for.

For a four-bay appliance, £490 is still a relatively competitive price, but we’ve one word to the wise: pre-populated models can work out more expensive than buying the bare enclosure and picking your drives separately, so investigate your options before buying.

Key specs – CPU: Intel Pentium N3710 (1.6GHz, 2.56GHz burst, quad-core); RAM: 4GB; Drive bays: 4; RAID modes: JBOD, RAID0, 1, 5, 10; Gigabit Ethernet connectors: 2; Data connectors (rear): 2 x USB 3; Data connectors (front): 1 x USB 3; Other connectors: None; Dimensions (WDH): 170 x 232 x 192mm; Warranty: 2yr RTB (diskless), 3yr RTB (populated)

6. Synology DiskStation DS1821+: Best-value business NAS

Price: £1,049 | Check price at Amazon

AMD has wormed its way into several Intel-occupied territories lately, and the Synology DiskStation DS1821+ is its latest conquest. Now packing a quad-core, 2.2GHz AMD Ryzen V1500B processor under the hood, the DS1821+ represents a slight change of direction for Synology, although the fundamentals are unchanged: this is a supremely impressive NAS drive at a very reasonable price.

Alongside the V1500B CPU you’ll find 4GB of DDR4 ECC server-class RAM (upgradable to 32GB). Elsewhere on the storage side of things are eight front-facing SATA drive bays bolstered by two empty M.2 NVMe SSD slots (although these can’t be used for traditional storage, only caching purposes) and, on the rear, dual eSATA ports that can be connected to the DX517 expansion units sold by Synology. On the ports front you’re getting four USB-A 3.2 ports, four gigabit Ethernet ports and an empty PCI-E slot for Synology-branded 10GbE only.

The DS1821+ aced our tests, producing a read speed of 5Gbits/sec and a write speed of 4.1Gbits/sec when handed a 25GB file. Interestingly, AMD’s Ryzen processor surpassed Intel’s Atom when we tested encryption speeds by a factor of almost 70%. The DS1821+ also supports an all-encompassing range of software via its DSM platform, including Hyper Backup and Active Backup Suite for comprehensive data recovery and protection.

The bottom line is that this is an excellent NAS appliance that performs superbly well, supports a healthy range of applications and doesn’t cost the earth, relatively speaking.

Key specs – CPU: AMD Ryzen V1500B; RAM: 8GB; Drive bays: 8; RAID modes: RAID0, 1, 10, 5, 6, SHR-1/2, hot-spare, JBOD; Gigabit Ethernet connectors: 4; Data connectors (rear): 4 x USB-A 3.2; Data connectors (front): 1 x USB-A 3.2; Other connectors: eSATA, PCI-E expansion; Dimensions (WDH): 343 x 243 x 166mm; Warranty: 3yr hardware

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