NAS Buyers Guide 2021 – Get It Right First Time

NAS Brands in 2021 – Which One Should You Choose?

Buying your first Network Attached Storage (NAS) device can be a remarkably daunting task! Even for the most technologically knowledgable, a NAS is a very different kind of device than most of the hardware in your environment. At its heart, it is just a computer (like most things are when you break them down to the basics) that is built for a specific task. However, there are numerous elements of a NAS (such as it always being ON, the constant remote accessibility and focus on storage primarily) that set it apart from most other devices, and this si where a lot of people get a bit intimidated by it. There is always the option of using cloud services, such as DropBox, Google Drive, OneDrive and more, but these are often paid monthly subscription services, involve your data being shared across other services and (most worrying of all) leaves your precious data in a position to be used for analytics without your knowledge OR open to hacking because of the sheer size of the target. Add to this the fact that in most cases, a severed connection to the internet means a severed connection to your data, and the appeal of moving away from 3rd party cloud and on to a NAS is pretty clear. The industry of NAS has been in constant growth for over 30 years, with big players like HP, Dell and IBM steadily losing the home and SMB market to the likes of Synology, QNAP and more. The brand diversity in the field of NAS servers has continued to grow right up until 2021, with the benefit that the way you can interact with your data, what NAS devices can do and the price point of this technology being exceedingly affordable (with fully featured solutions WITH storage media arriving as low as £200). So, today I want to talk about what NAS is, what a NAS can do, and which NAS Brand you should consider buying in 2021.

Is a NAS and a Server the Same Thing?

You will often hear people use the word NAS nad the word Server differently. Both are exceedingly similar and often interchanged, but there are some teeny tiny historical differences between them. The word server can sometimes bring out a cold sweat in the less technically minded or IT experienced, but in reality, it is a pretty harmless term. A server is a piece of hardware (like a computer) or software (so a program that runs on a computer) that manages, shares and controls data (pictures, videos, word documents, PDFs etc) to a number of people who wish to access them (these are called ‘clients’). That is it. Sure, there are much more complex and expensive servers that are designed to communicate with other servers or computers without human intervention – but in essence, they are all the same thing. Now where a regular server will give access to your users/clients via your internal network (router or switch) a NAS Server is the same, but it opens up a whole area of accessing it over the internet too. Different NAS servers provide different results and speeds and typically are designed with individual purposes in mind (i.e some are designed with media playing in mind, some with faster backing up and others with Surveillance recordings with CCTV IP Cameras). So first and foremost you have to make sure that the NAS you buy is designed for the tasks you have in mind. A fork and a Spoon are both cutlery, but you wouldn’t eat soup with a fork (maybe a spork). Traditional bare-metal servers have the option of remote internet access, but nowhere near as intuitively and with a focus on user-friendliness that NAS systems provide.

What is NAS Drive?

Network Attached Storage, with the exception of casual 3rd party cloud use, is currently the most popular means to store, access, share and distribute data across your home, your city and the rest of the world. It provides you with the means to:

  • Access your Multimedia on Network devices over DLNA
  • Backup all your devices easily and at a time of your choosing, wire-free
  • Stream Media over the internet, anywhere in the world
  • Share files securely and with full control of how and when they are accessible
  • Centralize the storage of your data in one location
  • Create Bespoke tiered backup solutions that fit your own needs

Choosing between Synology, QNAP, WD, Drobo, Netgear, Thecus and Asustor NAS

Let’s get our hands dirty and start working out what is the best NAS for you. All the brands have a different target audience in mind and each has its own Pros and Cons. However, all of them support a number of similar abilities, software and network basic functionality. So before we talk about what is better or worse about each NAS brand, let’s look at what they all have in common:

Applicable to all

  • All are compatible with Mac, Windows, Android and Linux
  • All arrive with a selection of included applications and services for tailored data access
  • All can be purchased Worldwide and feature regular security updates and firmware improvements regularly
  • All can be accessed via Mobile apps available via Google Play and iTunes, though there are more on some other brands than others
  • All can be accessed via your web browser – like Chrome, Opera, Safari, and…sigh… Windows Explorer
  • All use SATA HDD and SSD, with some having SAS enterprise options too
  • All work via the network and can be accessed worldwide over the internet
  • 3rd Party applications like PLEX, KODI and APPLE TIME MACHINE are supported
  • All arrive DLNA certified, so they will be accessed by your PS3, PS4, Xbox 360, Xbox One, Smart TV or Sonos system to play media
  • All are either WiFi-enabled or can have a WiFi dongle attached – though your speeds will suffer
  • All when purchased NEW arrive with a warranty of at least 2 years and in many cases more

Why Not Use Cloud Services like Google Drive, OneDrive or Dropbox instead of a NAS?

Do not think that 3rd party cloud services are bad, they really aren’t! In fact, you should always consider adding a 2nd or 3rd tier into your backup strategy at home/work, and synchronization of files/folders on your NAS with the cloud is a good means to ensure you have another backup in place. Additionally, most NAS feature a variety of 256bit encryption options, password protection, 2 step verification and more to allow secure access is ensured to the NAS and the content, even via the cloud. Additionally, bg NAS brands like Synology and QNAP have been supporting Hybrid Cloud services that not only allow cloud storage to be bolted onto your NAS storage for shared usage and access, but also both brand support backup and synchronization with cloud collaborate services, such as Google’s G Suite and Microsoft’s Office 365. So there is DEFINITELY still a valid and useful place for 3rd party cloud services in 2021, however, I rarely advocate the use of these cloud services as a PRIMARY storage location. They ARE convenient and you can get a limited amount of space included for free, but I generally have three core reasons that I do not recommend cloud as a first-tier storage.

COST – The cost of most 2 year subscriptions cost about the same as if you just purchased even a small scale NAS on day 1. It might seem like just 5 or 10 bucks a month, but over 2 or 3 years, it all adds up and moreover, after that time you either need to keep on paying every month or still buy a NAS or DAS system for the data to live on. Might as well buy the NAS sooner rather than later as it will be inevitable eventually.

ACCESS – NAS provides more apps, file-level tailored use and can be better adapted into popular 3rd Party applications like PLEX, KODI, APPLE TIME MACHINE and DLNA supported devices. A cloud provider severely limits the kind of access you have on a regular basis.

PRIVACY – NAS provides full individual user control and access, as well as admin controls. Plus the NAS can be fully disconnected from the Internet/Network at your discretion. A cloud provider has relative pre-set safety protocol that, when cracked one or two occasions, opens up mass hacking

This is not to say that data on your NAS is completely inaccessible. Any NAS brand can only really stay 1 step ahead of the hackers, patching exploits as they are found (no different than any online service really), but a NAS is a means to create a secure, customizable and ultimately bespoke data storage solution.

Why Choose Synology NAS? Advantages and Disadvantages


Likely one of the two NAS brands you have heard of, Synology NAS is the company that invests HEAVILY in its software – and it shows. It may seem one of the most expensive, but with it, you get some genuine boundary-breaking software with your purchase.  You still get a great level of hardware in the majority of Synology NAS solutions, but the real draw of Synology is that software. Not only does it support your own hardware environment of PCs, Macs, entertainment devices and mobiles in their own respective software, but DSM also includes MANY applications designed around keeping all your data IN-HOUSE. So, replace Skype/Whatsapp with Synology Chat, Replace Google Docs and Office365 with Synology Office. Use Synology Drive to make your storage visible and accessible the way YOU want it, and export your entire cloud/data network over to a Synology NAS and remove all the external access as and when you need! They aren’t the cheapest and they want you to do it ‘there way’, but it’s a pretty decent way. Additionally, their recent DSM 7.0 software has left many users impressed, with enhanced support of those 3rd party cloud storage and business services, AI photo recognition, their surveillance platform continuing to win awards and even an in-house cloud service in Synology C2. Stylizing themselves very much as the ‘Apple’ of this industry, they really do focus on keeping things straight forward and intuative.

PROS of Synology NAS

  • Easily the most intuitive and Usage browser-based GUI (award-winning DSM)
  • One of the best Surveillance NAS software solutions
  • Most popular vendor for Mac users for it’s UI
  • Incredibly feature-rich NVR software included, in Surveillance Station
  • Includes Active Backup Suite – Enterprise level and fully featured Backup Co-ordination software
  • Lowest Power Consumption vs other brands
  • Large # of their systems arrive with m.2 NVMe SSD caching upgrade bays
  • Quiet chassis compared with other brands
  • Task specialised Ranges like ‘PLAY’, ‘PLUS’ and ‘J’ make buying easier
  • The best range of first-party software, with Synology Office, Chat, Mail, Drive and more
  • SHR and SHR-2 – also BTRFS available in most solutions
  • Cloud Services available in Synology C2
  • Desktop and Rack-mount options available
  • Best software for Home and SMB

CONS of Synology NAS

  • Often the most expensive
  • Generally, Synology NAS has the lowest hardware power in their systems
  • More technically minded folk will need to dig a little to get to the nitty-gritty
  • May feel limited for those looking to evolve their storage
  • Network ONLY – no HDMI, Audio in/out, Thunderbolt, etc

Synology DS220J NAS

Synology DS920+ NAS

Synology DS1621XS+ NAS

Best Budget NAS

Best Mid-Range Solution

Best Business Solution


Why Choose QNAP NAS? Advantages and Disadvantages


Often considered the choice for the more hardware-aware buyer, if you are looking for a much more traditionally computer associated hardware – QNAP NAS is certainly the one that springs to mind. Generally considered the ‘innovators’ of the NAS industry, they have the largest range of solutions available Notwithstanding the fact that their hardware is by FAR the most evolved platform in NAS (thunderbolt 3, multiple HDMI, 10Gbe standard solutions, Silent NAS, AI solutions and advanced SSD caching), the platform is fantastically diverse, providing great NAS options alongside network switches, network adapters and generally reshaping your hardware environment for the better. The software has also evolved dramatically into its own beast, moving away from trying to imitate and carving its own path. It is a little more technically (and I really do mean a little) but it is far more rewarding for it. They do not feature some popular items on their portfolio, such as BTRFS or a fluid RAID system like SHR/BeyondRAID, but make up for this with their own range of alternatives and in most cases succeed. Get your reading glasses on though, as their range is quite vast and might overwhelm you a tad. In recent years the brand has shifted focus a great deal more towards software in efforts to meet the gap with their rival Synology to pretty good success. This is often achieved by releasing software that does the previously impossible before anyone else, but lacking a little of the polish of their biggest rival. Recent achievements with HybridMount, vJBOD, HyperVisor Protector, QuMagie and Multimedia Console have been received remarkably well, arriving onto the scene 1-2 years before anyone else. Alongside this, QNAP still has easily the best virtual machine and backup software for home and SMB in Virtualization Station and Hybrid Backup Sync.


  • Best Solutions for Plex Media Server in NAS
  • 2.5Gbe, 5Gbe and 10Gbe Options
  • Best Virtual Machine and Container Solutions in NAS
  • The best range of SSD Caching Solutions in the Industry
  • Almost all range is metal in design, or a plastic but unique chassis
  • HDMI and remote control included in most Media NAS devices
  • Thunderbolt NAS options covering TB2 and TB3
  • Two Surveillance Solutions (with 4/8 Camera Licenses included)
  • USB 3.0 DAS Connectivity on some devices
  • The Best Backup/Synchronization solution in ‘Hybrid Backup Sync 3’
  • Technical information far more readily available
  • Business-class NAS devices include ZFS as a file system (QUTS Hero)
  • Lower price compared with Synology in terms of hardware
  • User-friendly GUI – But just not quite as nice as Synology, damn close though
  • Desktop and Rackmount options available
  • Best software for business and Media users
  • Much better business options and definitely the best for virtual machines


  • A more android feel towards apps and stability means some users will be put off
  • Lacking the BTRFS and SHR support of Synology
  • Higher typical Power consumption
  • Often a fraction noisier due to chiefly metal chassis
  • much larger range of devices can lead to confusion
  • most units arrive with 2-3 Years warranty, but longer will cost you more




Best Budget NAS

Best Mid-Range Solution

Best Business Solution


Why Choose Asustor NAS? Advantages and Disadvantages

asustor logo

Another brand that was once a little on the fringe until around 2018, Asustor NAS has really upped their game in recent years, arriving with some impressively affordable 10Gbe solutions with the AS40 series, followed with the very well received Nimbustor 2 & 4 devices, and is now absolutely killing it with the Lockstor series. Certainly, a brand that wants to carve its place in the industry, the ASUS connected brand currently offers software features and functionality of Synology (BTRFS and Realtek integrated Processors) along with QNAP challenging hardware in HDMI 2.0a and 2.5Gbe default network ports (which they introduced first). This combined with a much cleaner and significantly improved software GUI in ADM, they have moved much beyond the slightly scrappy outsider vibe they had years ago. Recent additions to the range, such as the LockerStor have even included NVMe SSD bays and Xeon powered hardware, so the evolution clearly continues. The software does feel like a good middle ground between Synology and QNAP, even if missing the killer apps and hardware that gave them their market share (Thunderbolt3, SHR, Collaboration Suite, etc) and with a number of their newer releases arriving at a good chunk of $£ lower in price than comparative NAS from others (often more than 10-15% lower in fact).

PROS of Asustor NAS

  • Great Price vs Hardware – Often one of the lowest Prices Hardware solutions available
  • BTRFS Support
  • First Brand to Adopt 2.5Gbe Commercially
  • Nice software and still supports Kodi (unofficially), something slowly being pulled from other NAS Software stores
  • Good selection of Home and Business NAS devices
  • Early Adopter of HDMI 2.0a – so 4K at 60FPS
  • VM deployment and Container Support not dissimilar from QNAP, only not quite as flash
  • Noise is pretty low on most home devices like the Nimbustor 2/4
  • More Apps available on the NAS app store, more than QNAP and Synology
  • Product Naming is easier to follow than most brands

CONS of Asustor NAS

  • Mobile Apps are very functional but appear a little sparse
  • Many HDMI apps seem to be simplified web portals, rather than standalone applications
  • Browser-based GUI does not feel quite as smooth as Synology DSM, but on par with others
  • Surveillance Center application feels very dated and less intuitive than most


Asustor Nimbustor 2 NAS

Asustor LockerStor 4 NAS

Asustor LockerStor 10 Pro NAS

Best Budget NAS

Best Mid-Range Solution

Best Business Solution


Why Choose WD NAS? Advantages and Disadvantages


Although they have been a little quiet in terms of their hardware output recently, WD NAS is a brand that has been around for years (though most know them as a hard drive brand) and Western Digital NAS drives are a firm favourite among students and low-level storage solutions. They have a number of solutions in their WD My Cloud range that supports lite home users all the way to industry-level business users who want robust storage. The software may seem a little sparse and a far cry from Synology and QNAP, but they provide straight forward and clear setup. They WILL seem limited to anyone familiar with Synology/QNAP, but they certainly have a place in the industry. With user-friendly support of Apple Time Machine, Plex and DLNA – They are a great starter NAS with pre-populated options to make them extra affordable.


  • Popular HDD Vendor too, with expertise on their side
  • arrive often pre-populated so all warranty is covering Drives+NAS
  • Very fast set-up and can be deployed to deploy within 30 mins
  • Small+compact – featuring some of the lowest noise and power consumption of all
  • USB 3.0 DAS Connectivity
  • 3-year warranty on most units
  • Some units have 2 x PSU ports for Redundancy


  • EXT4 only
  • barely any mobile apps and relies on 3rd party mobile apps to connect over IP/Network settings
  • Smaller App selection in-app store
  • Limited User Interface
  • No HDMI, 10GBe, only USB 3.0 and 1GBe RJ45
  • Often much lower specs than Synology and QNAP
  • VERY small range
  • Desktop Only – No rackmount or Larger options


Why Choose TerraMaster NAS? Advantages and Disadvantages

One brand that I have always had a personal love for is TerraMaster. This is purely subjective and should be taken with a pinch of salt, but for a brand that no one really knows about, they give ALOT of the key features that other bigger brand advertise alot. BTRFS support is available on pretty much ALL the Intel-based devices, they feature one of the ONLY 4 LAN 2-Bay NAS’, along with an Intel J3455 based 10Gbe 2, 4 5 and 8-Bay solution. Arriving with a thunderbolt DAS range too, Terramaster is a NAS brand that has evolved comparatively quickly and although for the most part, they are only available via Amazon, this has still allowed them to be a recognizable brand. Typically in a like for like hardware comparison with them and companies like Synology/QNAP, you will find them better value for money, and the software (though less diverse or slick than those two big brands) is still pretty smooth and intuative. The chassis design is a little underwhelming, but even that has improved in recent revisions. All in all, they are the best budget NAS solution out there in 2021 and a good entry point into NAS.

PROS of TerraMaster NAS

  • Great Price vs Hardware
  • Hugely Improved GUI and Client apps
  • BTRFS available as file system choice
  • Desktop and Rackmount options
  • Similar Hardware to QNAP and Asustor, but at a Lower Price
  • Straight forward range and classification
  • HDMI Support Coming Soon
  • More Apps available on the NAS app store than any other Brand
  • Very Straight Fordware Setup

CONS of TerraMaster NAS

  • Very Few Mobile Apps
  • Despite Business targeting, very poor support of 10GBe till recently
  • A little dated design
  • Only really available on Amazon to buy
  • Arrives with Warranty, but the turn around is slower than many


Terramaster F2-221 NAS

Terramaster F4-422 10Gbe NAS

Terramaster F8-422 8-Bay 10Gbe NAS

Best Budget NAS

Best Mid-Range Solution

Best Business Solution


Why Choose Buffalo NAS? Advantages and Disadvantages

One brand that has danced with the home NAS industry, but pretty much now exclusively business in Buffalo. This brand is one that provides a number of key elements that businesses love. Robust and Rugged hardware design, Empty or Pre-Populated NAS solutions, Customizable Warranty options, Windows Server Pre-Installed Solutions, 10Gbe at an affordable Price and just generally being an enterprise/Business solution through and through. They lack the sexy/indie vibe of other brands, but that is not their target demographic – they want the user who wants storage that is simple, reliable and ‘setup and forget’. This means that on the face of it, they will seem quite pricey, but that is because you have to factor in the inclusion of hard drives, the service+support and the industrial level construction.

PROS of Buffalo NAS

  • Great Price vs Hardware
  • Improved GUI
  • Fantastically Rugged Construction
  • Lowest Priced 10Gbe Solutions
  • Can be purchased pre-populated, so warranties are all covering
  • Desktop and Rackmount options
  • Similar Hardware to Netgear, but at a Lower Price
  • Straight forward range and classification
  • EXCELLENT Windows Storage Server NAS devices, with inbuilt Windows Server 2016 for FAST deployment
  • Better Standard Warranty Length and more bespoke Recovery/Destroy options available
  • Easier and more customizable Warranty Extension options

CONS of Buffalo NAS

  • Very Few Mobile Apps
  • More focused on Business Users
  • Poor power consumption and dated design
  • Weak CPU choices on the whole

Why Choose Netgear NAS? Advantages and Disadvantages


One brand that has probably the longest history in network solutions is Netgear – pretty much ANYONE has heard of them, whether it was because your first switch/router came from them, or because they have such a squeaky clean reputation. The NAS solutions, much like Buffalo, are very industry-focused, but arriving with a few more features in the GUI department than them. Also arriving with pre-populated options and a diverse warranty structure, they do give alot to business users. They may seem a little ‘blah’, but what they lack in sizzle, they make up for in sausage.

PROS of Netgear NAS

  • Huge Mac and Windows Support
  • Fantastic Network configuration options
  • rugged and sturdy metal design
  • Often longer warranties than other brands like-for-like
  • Can be purchased pre-populated, so warranties are all covering
  • Supports usual RAID levels, as well as X-RAID and X-RAID 2 – Expandable RAID volumes not unlike SHR
  • Desktop and Rackmount options

CONS of Netgear NAS

  • High price Tag
  • Despite Business targeting, very poor support of 10GBe
  • Small App selection
  • Limited User Interface
  • REALLY confusing range
  • Not designed for a newbie – and larger units may need a dedicated IT guy
  • High power consumption and not the quietest


Should you buy Budget NAS brands like D-Link or Zyxel?

It should be highlighted that there are more NAS brands available than the ones discussed today. with each passing year more and more brands release their own NAS server for home and business use. However, in many cases, they are either too unreliable, too low on support and features, too technical for anyone with below-bill-gates depth of knowledge and most importantly most all, arrive from a brand without an established reputation. When it comes to buying the right network-attached storage device, you need to know what your buying works, as well as knowing that the manufacturer will be there in the event of a problem. likewise, you are trusting you’re are most likely trusting this brand with your most precious data (some photos and videos are irreplaceable) and from data loss to data theft, choosing the right NAS brand is essential.

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