Cloud Storage vs NAS vs Router USB: The Ultimate Network Backup Comparison!

Welcome! We’re discussing options for backing up your data over a network (home or internet).

This article aims to help you decide where to invest your money and learn the pros and cons of each service. Many believe the cloud is the best option, but for many, including me, it’s often the worst, though it has benefits. We’ll explore why.

Data Ownership

• Cloud: To me, this is a massive issue. When you upload data to the Cloud, you do not own it. You can access and modify it, but I’ve documented cases where major services like AWS and Google Drive have permanently deleted data for both regular people and businesses without recovery. Since you don’t own the servers, they have total control.
• With a NAS or a router setup, the storage is in your home. You have 100% control over your data.

Cost

• Cloud: Cost is often a debated point, but I give cloud a weak point here. It’s a marketing trick: providers hide the long-term cost by focusing on small monthly or annual fees (usually 1 or 2 year pricing only). They never show you the total after three or five years, and they can change pricing anytime. For example, my Microsoft 365 cost spiked due to the forced inclusion of AI Copilot features I didn’t want.
• For NAS, I rate it Just Okay. The upfront cost is high—hundreds of dollars for the unit and drives—but you know exactly what you’re paying.
• The router is the best cost option. Almost everyone has one. While many use the poor-quality modem/router combo from their ISP (internet service provider), I always recommend buying a separate, cheap router with USB ports to plug into the modem and disabling the modem’s router function. This minimal additional cost makes it the best value.

Scalability in IT means how quickly you can adjust digital resources like storage.

• The Cloud is excellent. If you need more storage, you just pay more and make a few account adjustments. It’s done within minutes.
• NAS is Just Okay. You absolutely can increase storage by buying new drives, but the cost is the caveat. You also need to be careful with complex data setups, like certain RAID configurations, to ensure you don’t lose data when you swap drives.
• Scalability on a router is okay, slightly better than a NAS. Since it typically involves one USB stick or external drive, you just copy the data to another drive over the network to increase storage, which is simple.

Compute Power

• Cloud compute power is phenomenal. They use dedicated, powerful servers, so any slowdown is usually due to your internet, not their hardware.
• A NAS is also very powerful nowadays, functioning like a mini-computer designed for storage.
• A router is abysmal here. A router is designed primarily as a network device. It must process traffic from many devices (smart devices, phones, TVs) simultaneously. This strains the router’s CPU and RAM (yes, routers have those components). If you’re using many network devices while trying to copy data to the USB drive, the router often can’t process it all, leading to super slow transfer speeds.

Maintenance

• Cloud maintenance is non-existent. The service provider handles everything, which is part of the basic service agreement.
• NAS and router maintenance are okay. It’s usually limited to a simple firmware update once in a while. You update the NAS or router when no one is using the network drives, and you’re done.

Hardware

• Cloud is superior at avoiding hardware issues, because the provider manages everything and uses redundant systems.
• With a NAS, recovery depends entirely on your RAID configuration. If you mirror the data across multiple drives, you’re fine if one drive fails. However, if your data is segmented for greater speed (a different RAID setup), losing one drive can corrupt or destroy part of your files. I rate it “okay” because it depends on your setup.
• A USB drive on a router has no redundancy; if the drive or the router dies, all your data is gone, not a good option.

Network Speed

• Cloud network speed is phenomenal. Service providers typically have some of the best internet connections available globally.
• NAS speed depends on location. If you’re on your home network, it will be lightning-fast, often faster than the cloud. However, if you are accessing it remotely—for example, accessing your NAS in Canada from the UK—your speed is limited by your home upload speed. Also, physical distance can cause high latency and packet loss, leading to slow transfers or failure.
• The same latency caveat for remote access also applies to the router USB setup, however it provides greater speed than cloud while transferring within your home network (just like a NAS).

Security

• Cloud security is some of the best in the industry. Security breaches are rare because providers invest heavily.
• NAS security is also very good. Again, companies prioritize top-notch security to maintain trust. This is paramount for a NAS manufacturer as failure could mean losing their entire business. It’s quite rare to hear about mass security issues with NAS.
• Routers are not the best. While they offer some encryption, like TLS over FTP (which is better than nothing), it could be improved. This is best shown in the Asus USB article I mentioned earlier, in which SFTP would have been better but isn’t an available option.

Privacy

• Cloud privacy is abysmal. The majority now use AI services to scan your data (Google Drive, OneDrive) and may sell it. Even providers like Apple, who claim to prioritize privacy (iCloud), have been caught collecting user chat data from Meta (parent company of Facebook, Instagram, WhatsApp, Threads and Oculus) for marketing purposes. Their claim of being privacy-focused is often a lie.
• NAS and router privacy is fantastic. Since the data is local, you control permissions and access completely. No third-party has their hands or AI in your data.

Availability (Hardware) This relates to how resilient the storage location is (e.g., power backups)

• Cloud availability is phenomenal. They use dedicated data centres have multiple servers and extensive power backups.
• NAS is okay. Power outages at home are rare. In a worst-case scenario, many NAS units allow you to connect your computer directly to the device via USB if your internet is down.
• I give routers a bad rating. It has almost no redundancy. If the router fails, access to your data is gone. Same story for the single USB storage connected device, if that device dies then your data is gone.

Data Redundancy

• Cloud services are generally phenomenal; they maintain multiple servers and racks, often backing up your data at least twice.
• NAS redundancy depends entirely on your configuration. If you set up mirroring (data copied onto multiple drives), then if one drive dies, the data is safe. However, if you spread data across drives for speed, a single drive failure can corrupt your data. While errors are rare, it’s a critical point to consider when setting up a RAID configuration.
• Routers are terrible in this aspect. Once the USB drive attached to your router dies, all the data is gone.

Data Restoration

• I’ve detailed in a separate article that with cloud services, if they lose your data due to their mistake, it’s often gone, and they may not commit to restoring it, despite your paid monthly subscription fee. You are trusting a third party with no guarantee.
• With a NAS, successful restoration depends on your backup strategy (e.g., mirrored drives) and whether you have an off-site backup (like having a replicated copy at a relative’s house) for protection against fire or flood.
• I gave routers a slight pass because while it lacks on-device backup, if the USB drive dies, the data is likely backed up elsewhere, like your main computer.

Connection Options

• Cloud options are pretty good (apps, websites), though mobile sites are bad. In fact, sometimes the desktop websites are downright terrible and buggy, especially like Microsoft OneDrive.
• NAS tend to have the most options (apps, website). The better NAS companies offer great versatility. Accessing your system directly is generally more stable than relying on a third-party cloud websites.
• Routers have the worst options. You’re lucky if they offer app or website compatibility. Access is often limited to a protocol like FTP, making it a poor choice.

User Permissions

• For personal use, Cloud permissions are “neutral.” They aren’t great; you can share specific folders, but lack the granular control (like sharing a sub-folder within a shared top folder, but only read/write options on certain files and so on, it’s rather complex when compared to enterprise level).
• With NAS, you can achieve granular permissions through the NAS software or by applying operating system permissions (like Windows), but this requires some technical effort. However, you can keep it simple or make permissions complex for greater access control.
• Router permissions are just simply poor and allow little permission settings.

Media Server

• Cloud Storage is an abysmal media server option (e.g., connecting to Plex). It’s just not designed for it and not really an option as it’s often not even allowed to be used as a media platform.
• NAS is by far the best, hands down. There is virtually no competition, unless you choose to use your main computer as a server. It allows great compatibility with services such as Plex and Kodi. Even better is that while using it on your home network, the streaming speed and quality can be fantastic.
• Routers, just like cloud are not even an option to be used as a media server.

Exit Cost

• Cloud exit costs are horrible. You are usually locked into a commitment (one or two years), as monthly plans are typically too expensive and most people don’t sign up for monthly plans. You are stuck until the commitment ends, even if you stop using the service.
• For NAS and routers, the exit cost is zero. To stop using it, you just unplug the power; you are done.

Vulnerability Management

• This is good across the board for cloud, NAS, and routers.
• Cloud providers handle everything for you.
• With NAS and routers, you must handle it yourself by updating the firmware but this is minimal work and can be done once a month or every two months. Since they are primarily for storage, installing antivirus/malware software is usually unnecessary, though some expensive routers have it built in.

API Integration This refers to native support for external systems like smart home products or media servers (beyond basic media support).

• Cloud integration at the consumer level is abysmal. While enterprise solutions exist, consumers have very few options.
• NAS is by far the best. They are compatible with many smart home products, and you can stream content easily through platforms like Plex and Kodi.
• Routers are absolutely not designed for this and not even an option.

Conclusion

This was a long analysis, but I hope you learned something to help you make a cost-conscious decision. Multi-billion dollar companies and multi-trillion dollar companies like Microsoft heavily market the cloud as the easiest option. However, as we have shown, that ease comes at the cost of your privacy and a lot of money over time.

I hope you learned something and are a bit more ease on how to invest in network storage.