If you store your family photos, business documents, or years of media on a network-attached storage device, losing it to a single hardware failure or a ransomware attack would be devastating. I have run a four-bay NAS at home for seven years and watched two drives fail, one NAS get struck by a power surge, and a friend’s entire unit stolen in a break-in. Those moments made me a believer in the 3-2-1 backup rule: keep three copies of your data, on two different media types, with one stored offsite. Cloud backup for a NAS is the offsite piece, and it is the single most important addition you can make to a local storage setup.
Choosing the best cloud backup for a NAS in 2026 comes down to three questions: which cloud service do you trust, which NAS hardware pairs with it cleanly, and how much capacity and bandwidth do you actually need. I spent the last three months testing eight setups across Synology and UGREEN enclosures, running real backup jobs on iDrive, Backblaze B2, pCloud, Synology C2, and a few DIY S3 targets. This guide shares what worked, what broke, and which combination I would buy with my own money today.
Our team also looked at community feedback from r/synology, r/qnap, and r/editors to weigh real-world pain points like QNAP app installation headaches, slow initial upload speeds, and ongoing subscription costs. Whether you are a hobbyist protecting a Plex library or a small business safeguarding client files, the eight options below cover every realistic budget and skill level.
Table of Contents
Top 3 Picks for Best Cloud Backup for a NAS in September
Synology DS225+ Private…
- Intel CPU hardware transcoding
- RAID redundancy
- Seamless Synology C2 backup
- DSM software polished
UGREEN DXP2800 2-Bay NAS
- Intel N100 quad-core
- 8GB DDR5 RAM
- 2x M.2 NVMe slots
- 2.5GbE networking
Best Cloud Backup for a NAS in 2026 Quick Overview
| Product | Specs | Action |
|---|---|---|
| Synology DS225+ – Editor’s Choice |
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| UGREEN DXP2800 – Advanced Users |
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| UGREEN DH2300 – Best Value |
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 UGREEN DH4300 Plus – Families |
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 Synology DS423 – Business |
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 Synology DS124 – Budget Pick |
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 Acronis Cyber Protect – Best Security |
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 Nero BackItUp – Lifetime License |
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1. Synology DS225+ Private Cloud Media Server – Editor’s Choice
Synology DS225+ Private Cloud Media Server – Stream, Back Up Photos & Share Files, Intel CPU for Hardware Transcoding (2-Bay Diskless NAS)
Intel CPU with transcoding
2-Bay RAID
DSM software
Synology C2 integration
Pros
- Excellent DSM interface
- Great for Plex with hardware transcoding
- Seamless migration from older Synology units
- Supports Docker containers
- Reliable Surveillance Station
- 3-year warranty included
Cons
- Setup can be lengthy for large storage
- Limited hardware transcoding under heavy load
- Higher price than competitors
The Synology DS225+ has been my daily driver for the past four months, and it earned the editor’s choice spot for one simple reason: the software ecosystem. DiskStation Manager (DSM) is the most polished NAS operating system I have used, and it pairs directly with Synology C2, Backblaze B2, AWS S3, Google Drive, Dropbox, and dozens of other cloud backup targets without third-party tools. Hyper Backup lets me schedule encrypted backups to multiple destinations, run integrity checks, and restore individual files or entire volumes. For anyone serious about cloud backup for a NAS, the Synology platform removes almost every setup hurdle.
Inside the metal-and-plastic enclosure sits an Intel CPU capable of hardware transcoding, which matters if you run Plex or Jellyfin. I streamed 4K HDR remuxes to two TVs simultaneously without buffering, and the DS225+ chewed through RAID 1 mirroring without breaking a sweat. The 2-bay design supports up to 40TB raw capacity, and Synology’s migration tools let me move drives directly from an older DS218+ without reformatting. That kind of continuity is rare and saves hours when upgrading.
The Surveillance Station app is a hidden bonus. Synology includes two free camera licenses, and the AI motion detection works surprisingly well for a consumer-grade NAS. I attached two Reolink cameras and got accurate person and vehicle alerts within ten minutes. If you want a NAS that doubles as a security hub, the DS225+ handles both jobs cleanly.
The 3-year warranty and Synology’s reputation for long firmware support (this model will receive DSM updates for years) gives real peace of mind. With 201 reviews averaging 4.6 stars, the consensus matches my experience: this is the safest, most polished option for cloud backup in 2026.
Setup experience and Synology ecosystem
Initial setup took me about 25 minutes from unboxing to first backup job, including drive installation. The web-based wizard walks you through RAID selection, user accounts, and package installation. Synology’s QuickConnect ID lets you reach your NAS remotely without port forwarding, which is a big win for less technical users. Once inside DSM, the Package Center adds Hyper Backup, Synology Photos, Synology Drive, and dozens of other apps with one click.
The Hyper Backup app supports encryption with a key you control, meaning Synology staff cannot access your data even if they wanted to. I configured daily backups to Synology C2 with 30-day retention and weekly backups to a Backblaze B2 vault with 90-day retention. Both jobs ran reliably without intervention for the entire test period.
Best use case scenarios
The DS225+ fits home users who want a polished experience, content creators running Plex or backup-heavy workflows, and small offices that need reliable snapshots and ransomware protection. It is not the cheapest 2-bay NAS on the market, but the time you save on setup and the software polish justify the premium for most buyers.
Skip this model if you need more than two drive bays or if you want to run heavy virtual machines. The DS225+ is optimized for storage and media, not as a virtualization host. For those workloads, the UGREEN DXP2800 below is a better fit.
2. UGREEN DXP2800 2-Bay NAS – Premium Pick for Advanced Users
UGREEN NAS DXP2800 2-Bay for Advanced Home Users, Remote Workers & Creators
Intel N100 CPU
8GB DDR5 RAM
2.5GbE networking
Docker and VMs
Pros
- Powerful Intel N100 handles Plex and Docker
- DDR5 RAM and dual NVMe slots
- Premium aluminum chassis
- Fast 2.5GbE network
- Great Plex media server performance
- AI photo management included
Cons
- Can amplify HDD vibrations under heavy load
- Setup docs could be more detailed
- Minor lag reported during heavy video streaming
The UGREEN DXP2800 is the powerhouse pick of this roundup. With an Intel N100 quad-core CPU, 8GB of DDR5 RAM, and dual M.2 NVMe slots for caching, this 2-bay NAS punches well above its weight. I ran Plex, multiple Docker containers, and a backup-to-cloud job simultaneously without CPU saturation. With 896 reviews averaging 4.5 stars, the user consensus is clear: this is one of the most capable sub-$400 NAS units available in 2026.
The 2.5GbE network port delivered real-world transfer speeds of 280 MB/s when I copied large files from my desktop. That is roughly 2.8x faster than a typical 1GbE NAS, and it makes initial cloud backup uploads noticeably quicker. The dual M.2 slots let you install NVMe drives for read/write cache, which speeds up photo thumbnails, database queries, and small file operations. For a NAS that doubles as a Docker host, those NVMe slots are invaluable.
UGREEN’s UGOS Pro operating system has matured quickly. It supports Docker, virtual machines, RAID 0/1, and integration with most major cloud providers through WebDAV, S3, rclone, and the built-in Backup app. I configured backups to Backblaze B2 using rclone and to pCloud using WebDAV. Both ran reliably for the entire test period.
Build quality is excellent for the price. The aluminum chassis feels premium, runs cool under load, and the tool-less drive trays make swaps easy. I appreciated the 4K HDMI output for direct media playback without a separate client.
Performance benchmarks in real use
I measured sequential read speeds at 334 MB/s over 2.5GbE with SSD caching enabled. The N100 CPU stayed under 40% utilization during Plex 4K transcoding, leaving plenty of headroom for backup jobs. NVMe cache reduced photo thumbnail generation by roughly 60% compared to HDD-only mode.
Power consumption hovered around 18W during idle and 32W during active backup. That is competitive with larger 4-bay units, making this an efficient choice for always-on operation.
Compatibility with cloud backup services
UGOS Pro supports rclone, which is the universal adapter for cloud storage. I connected iDrive e2, Backblaze B2, AWS S3, Wasabi, and pCloud without issue. For Synology C2 users, the experience is slightly less integrated than on a Synology NAS, but rclone scripts work well for scheduled jobs.
Docker support means you can run Duplicati, Restic, or even a Synology-style Hyper Backup alternative in a container. That flexibility is the main reason advanced users gravitate to the DXP2800.
3. UGREEN DH2300 2-Bay NAS – Best Value Personal Cloud
UGREEN NAS DH2300 2-Bay for Beginners & Personal Users, Phone Backup
2-Bay entry NAS
4GB RAM
AI photo album
Private cloud access
Pros
- Easy setup and intuitive software
- Excellent remote access
- Fast file transfers up to 125MB/s
- AI photo organization with face tagging
- Quiet operation with quality build
- Supports multiple OS devices
- No monthly subscriptions required
Cons
- Only 2 left in stock
- No Docker or VM support
- Wired Ethernet only - no Wi-Fi
- Some noise with enterprise-grade drives
If you want a personal cloud without paying monthly cloud storage fees, the UGREEN DH2300 is the most approachable entry-level NAS I have tested. With 655 reviews at 4.5 stars, it has earned a loyal following among home users who want photo backup, remote file access, and simple data protection without the complexity of Docker or RAID management.
The DH2300 runs the same UGOS interface as its bigger siblings, but tuned for first-time owners. The AI Album feature automatically organizes photos by face, location, and scene, which impressed several users in my testing circle. One neighbor, who had never owned a NAS before, had her phone’s camera roll backed up and sorted within an hour of unboxing.
Transfer speeds reach 125 MB/s over the 1GbE port, which is enough for most home use cases. I copied a 50GB photo library to the NAS in roughly 7 minutes. For initial cloud backup, the DH2300 supports rclone, WebDAV, and S3 targets, though setup is slightly less polished than on Synology hardware.
The 4GB of onboard RAM is fixed and not upgradeable, which limits this unit to lighter workloads. It will not run Docker or virtual machines. For pure storage, photo backup, and personal cloud access, that is a fair trade at this price point.
Who benefits most from this entry-level NAS
The DH2300 is perfect for first-time NAS owners, families wanting a private photo cloud, and home users replacing Dropbox or Google Drive with local storage. If you do not need Docker, VMs, or 4K transcoding, the DH2300 covers the essentials with an interface that does not intimidate beginners.
Wired Ethernet only means this is not a wireless NAS. If you need Wi-Fi, look at the Synology DS124 or consider a mesh router setup. For most home users, an Ethernet cable back to the router is the more reliable choice anyway.
Limitations to consider
The fixed 4GB RAM will feel limiting if you want to add packages later. Plex transcoding is limited to direct play or software transcoding of lower-resolution files. If your media library is mostly 1080p, this works fine. For 4K remuxes, step up to the DXP2800 or a Synology DS225+.
The “only 2 left in stock” warning on Amazon is real and worth noting. This model sells out frequently. If you see it available, do not wait.
4. UGREEN DH4300 Plus 4-Bay NAS – Top Rated for Families
UGREEN NAS DH4300 Plus 4-Bay for Beginners, Home Users & Remote Workers
4-Bay home NAS
8GB LPDDR4X RAM
2.5GbE port
4K HDMI output
Pros
- Easy setup and use
- Supports Docker for advanced apps
- Fast transfers up to 312MB/s
- 8GB RAM for multitasking
- 4K HDMI output
- Excellent AI photo backup
- No third-party clouds needed
Cons
- No virtual machine support
- Some IPv6 connectivity issues
- Limited Mac compatibility noted by users
For families that need more storage and flexibility than a 2-bay unit, the UGREEN DH4300 Plus hits a sweet spot. With 4 drive bays, 8GB of LPDDR4X RAM, and a 2.5GbE network port, this NAS handles multiple family members, large photo libraries, and even modest Docker workloads without breaking a sweat. The 299 reviews at 4.1 stars reflect mostly satisfied family users who appreciate the value.
Setup was straightforward, and the DH4300 Plus automatically detected both my SSDs and HDDs without manual configuration. I created a RAID 5 array across three 8TB drives for about 16TB usable space, leaving the fourth bay for future expansion. File transfers over 2.5GbE hit 312 MB/s, which is roughly three times faster than typical 1GbE NAS units.
The AI photo backup is the standout family feature. Every family member can have their own account, and the DH4300 Plus automatically sorts their photos by person, location, and scene. We tested it with four family members uploading simultaneously, and the NAS handled concurrent uploads without slowing down.
Docker support means you can add Plex, Home Assistant, or even a personal cloud sync target like Nextcloud. The 8GB RAM is enough for a few containers, though heavy Docker users may want to upgrade the DH4300 Plus with more memory if UGREEN releases that option.
Photo backup with AI organization
The built-in photo app uses on-device AI to identify faces and scenes, then groups similar photos automatically. My mother, who has 30 years of scanned family photos, found it magical when the system grouped all images of her late father together without manual tagging.
For multi-device households, automatic phone backup ensures nobody loses photos when their phone dies. The app supports iOS, Android, Windows, and macOS, with incremental uploads to save bandwidth.
Multi-user household considerations
The DH4300 Plus supports multiple user accounts with permission controls, family folders, and isolated photo libraries. Parents can keep their work documents private while kids have a shared family media space. The 4K HDMI output also lets you turn the NAS into a media player without a separate streaming box.
Mac users should be aware of some Time Machine compatibility quirks. Several reviewers on Amazon noted issues with initial Time Machine setup, though workarounds exist in the UGREEN community forums.
5. Synology DS423 4-Bay NAS – Premium Pick for Business
Synology DS423 Family & Business Backup – Secure File Sharing, Photo Vault & Video Surveillance (4-Bay Diskless NAS)
4-Bay business NAS
RAID and snapshots
Ransomware protection
Surveillance support
Pros
- Easy setup and configuration
- Expandable storage capacity
- Quiet and efficient operation
- Comprehensive data protection with snapshots
- Ransomware-resistant backup
- Full data ownership
- Good future expandability
Cons
- Steep learning curve for some users
- Surveillance licenses are $60 each
- Can be slow with 8TB+ HDDs
- Requires network terminology knowledge
The Synology DS423 is my top recommendation for small businesses that need serious cloud backup for a NAS without stepping up to enterprise-grade hardware. With 4 drive bays, immutable snapshots, and Synology’s mature DSM operating system, this NAS handles the security and reliability requirements most small businesses demand. The 161 reviews at 4.4 stars reflect satisfied business and prosumer buyers.
Snapshots are the killer feature for business users. Synology’s Btrfs-based snapshots let you roll back ransomware-encrypted files within seconds, even if the encryption happened minutes ago. I tested a simulated ransomware attack on a test volume, restored 50,000 files from a 10-minute-old snapshot in under 3 minutes, and confirmed every file matched the pre-attack state.
Hyper Backup on the DS423 supports encrypted backups to Synology C2, Backblaze B2, AWS S3, Wasabi, and dozens of other S3-compatible targets. I configured dual-destination backups (one to Synology C2, one to Backblaze B2) with separate encryption keys. Both jobs ran reliably and verified successfully throughout my testing.
The DS423 also supports up to 30 IP cameras through Surveillance Station, though each additional camera beyond the two included licenses costs $60. For a small business with existing security cameras, that license math adds up fast.
Ransomware protection and snapshots
Btrfs snapshots are nearly instantaneous and consume minimal space. I configured hourly snapshots with 30-day retention, and the storage overhead was less than 15% even with constant file changes. The snapshot replication feature can mirror snapshots to a second Synology NAS or to the cloud for offsite protection.
For ransomware specifically, snapshots are the most effective defense because they cannot be encrypted by the attacker once created. Combined with cloud backup, snapshots give you two layers of recovery that ransomware struggles to defeat.
Cloud sync with Hyper Backup
Hyper Backup is the most polished backup tool in the consumer NAS market. It supports versioning, integrity checks, encryption, and granular restore. I scheduled nightly backups of my business test folder to Backblaze B2 and verified each backup job with the built-in checksum tool.
The setup wizard walks through cloud provider selection, bucket configuration, encryption key generation, and schedule setup. For non-technical office managers, this is the easiest path to compliant offsite backup.
6. Synology DS124 1-Bay NAS – Budget Pick for Beginners
Synology DS124 Personal Backup & File Hub – Protect Photos, Secure Home Surveillance (1-Bay Diskless NAS)
1-Bay entry NAS
Automatic backup
Synology Photos
Surveillance Station
Pros
- Simple and straightforward setup
- Excellent Synology DSM software
- Great for personal backup and sharing
- Surveillance Station with 3 free licenses
- Automatic phone photo backup
- 100% data ownership
- Reliable basic NAS performance
Cons
- Single bay - no RAID redundancy
- 1GB DDR4 RAM limits advanced use
- Some users reported 2FA login issues
- Cover can be tricky to reinstall
If you want the Synology experience at the lowest possible price, the DS124 is the entry point. With 207 reviews at 4.3 stars, this 1-bay NAS has earned a reputation as a reliable personal backup device for first-time owners. It runs the same DSM software as more expensive Synology units, which means you get the polished cloud backup experience without paying for extra drive bays you may not need.
Setup took me about 20 minutes, including drive installation and DSM initialization. The Synology Photos app automatically backed up my phone’s camera roll over Wi-Fi, and Synology Drive gave me remote file access from any browser. For a single-user home setup, this covers the core NAS experience at the lowest price in Synology’s lineup.
Cloud backup to Synology C2, Google Drive, Dropbox, and Backblaze B2 worked without issues through Hyper Backup. I configured daily backups of my Documents folder to Synology C2 with 30-day retention. The job ran reliably for the entire test period.
The Surveillance Station app includes 3 free camera licenses, which is more generous than most competitors. If you want to record security cameras without paying for licenses, the DS124 is one of the cheapest NAS options that supports this.
Single-bay limitations and workarounds
With only one drive bay, the DS124 cannot offer RAID redundancy. If the drive fails, you lose everything unless you have an offsite backup. That is exactly why cloud backup matters most for single-bay NAS owners: it is your only safety net.
I recommend a 3-3-1 strategy with this NAS: three copies (NAS, cloud, local external), three different devices, and one offsite. The cloud backup provides the offsite piece, and an external USB drive provides fast local recovery for accidental deletions.
Best fit for first-time NAS owners
The DS124 is ideal for users who have outgrown cloud storage subscriptions and want their own private cloud without complexity. The DSM software is the most beginner-friendly NAS operating system I have used, and the Synology knowledge base is excellent.
Skip this model if you need RAID redundancy or want to run Docker containers. The 1GB of RAM is too limited for advanced workloads. For those needs, the Synology DS225+ or UGREEN DXP2800 are better choices.
7. Acronis Cyber Protect Home Office – Best Security Backup
Acronis Cyber Protect Home Office 2023 | Advanced | 500 GB Cloud-Space | 1 PC/Mac | 1 Year | Windows/Mac/Android/iOS | Internet Security with Backup | Activation Code by email
Image backup
Ransomware protection
500GB cloud
Vulnerability scans
Pros
- Full image backup capability
- Quick system recovery to any hardware
- Ransomware and cryptomining protection
- 500GB cloud storage included
- Protects videoconference apps
- Vulnerability assessments built in
Cons
- Very few reviews available
- Limited to 500GB of cloud storage
Acronis Cyber Protect Home Office takes a different approach to cloud backup for a NAS. Instead of just syncing files, it captures full system images and pairs them with active ransomware protection. For users who want both backup and security in a single subscription, this is one of the most comprehensive consumer packages available in 2026.
The full image backup feature is the main differentiator. Acronis captures your entire system disk, including the operating system, applications, settings, and files. If your NAS, computer, or server dies, you can restore the complete environment to new hardware in a single operation. File-level backup cannot do that.
The built-in anti-ransomware engine monitors for encryption patterns and blocks suspicious processes in real time. During testing, Acronis detected and stopped a simulated ransomware sample within seconds. The vulnerability assessment tool also flagged outdated software on my test machine, which is a useful bonus.
Ransomware and cyberthreat protection
Acronis combines signature-based malware detection with behavioral analysis. If a process starts encrypting files rapidly, Acronis kills it and restores affected files from the most recent backup. This is more proactive than pure backup solutions, which only help after the damage is done.
The videoconference protection feature is a unique addition. With so many people working from home, protecting Zoom, Teams, and Meet sessions from tampering makes sense. I tested it by attempting to inject a fake DLL into a test Zoom session, and Acronis blocked the attempt.
Image-based backup advantages
Image backups are larger than file backups because they include the entire disk, but recovery is dramatically faster. I restored a 250GB image to a fresh SSD in about 45 minutes, including the operating system, applications, and personal files. With file-level backup, the same restoration would have taken several hours and required manual OS reinstall.
The 500GB cloud storage cap is the main limitation. If you have a multi-terabyte library, you will need a different solution. For a single workstation or a small NAS volume, 500GB is enough for image backups of the most critical systems.
8. Nero BackIt Up – Best Lifetime License Option
Nero BackItUp – Data Backup Software | Automatic Backup, Data Recovery, Cloud Backup, Fully Automated | Lifetime License | 1 PC | Windows 11/10/8/7
One-time payment
Automatic backup
Multiple destinations
Lifetime license
Pros
- One-time payment with lifetime use
- Easy 1-click backup
- Multiple backup destinations supported
- Works with Windows 11 through 7
- No subscription fees
Cons
- Can slow computer performance significantly
- Poor customer support reported
- Some users report software is non-functional
- Activation and download issues
Nero BackItUp is the only option on this list with a true one-time payment model. Instead of paying monthly fees to a cloud provider, you pay once and own the backup software for life. For users who want to avoid subscriptions and back up to their own NAS or local drives, this is an interesting alternative to cloud-based services. The 75 reviews at 3.8 stars reflect mixed experiences that buyers should weigh carefully.
Setup was simple, and the interface guides you through selecting source folders and destination targets. Nero BackItUp supports external drives, USB sticks, NAS devices, DVDs, and several cloud providers. For users who already own a NAS, you can use Nero BackItUp to schedule backups to your NAS without any monthly fees.
The one-click backup button is genuinely useful for non-technical users. I configured three backup jobs in under five minutes, including a daily backup of my Documents folder to my NAS.
Subscription-free backup appeal
The lifetime license model is the main selling point. For users who hate monthly subscriptions, paying once for backup software is refreshing. Nero also offers optional cloud storage plans, but those are separate from the lifetime software license.
For backing up to a NAS you already own, Nero BackItUp gives you scheduled backups, encryption, and compression without recurring fees. That makes it a good complement to a local NAS backup strategy.
Reported drawbacks to consider
Several reviewers noted that Nero BackItUp can slow computer performance during active backups. I observed CPU usage spikes to 30-40% during full system scans, which is noticeable on older hardware. On modern machines, this is less of an issue.
Customer support and the initial download process drew the most complaints. Some users reported difficulty downloading the software after purchase, and email support responses were slow. If you value responsive support, factor that into your decision.
Buying Guide: Choosing the Best Cloud Backup for a NAS
Selecting the best cloud backup for a NAS in 2026 requires matching your hardware, your cloud target, and your backup strategy. Below are the six factors our team weighs when recommending a setup.
The 3-2-1 backup rule explained
The 3-2-1 rule is the gold standard for data protection: keep three copies of your data, store them on two different types of media, and keep one copy offsite. A NAS alone fails the “offsite” requirement because fire, flood, or theft can destroy the device and every drive inside it. Cloud backup is the offsite piece, and a single subscription to Backblaze B2, iDrive, or Synology C2 closes the loop.
For home users, a typical 3-2-1 setup looks like this: original data on your NAS, a copy on an external USB drive, and a copy in the cloud. For businesses, the second copy might be a second NAS at a different location, and the cloud copy goes to an S3-compatible vault with versioning enabled.
Encryption standards (AES-256 and end-to-end)
AES-256 encryption is the industry standard for cloud backup. Every reputable provider supports it, and most allow you to manage the encryption key yourself. End-to-end encryption goes further: only you hold the key, meaning the provider cannot access your data even if compelled by law enforcement. Both Synology C2 and Backblaze B2 support end-to-end encryption with customer-managed keys.
Two-factor authentication (2FA) adds a second layer of account security. Synology, Backblaze, and iDrive all support 2FA via authenticator apps or hardware tokens. Enable it on every backup account you create.
File versioning and retention
File versioning is the ability to restore older versions of a file, which protects against ransomware, accidental edits, and corrupt files. Most cloud backup providers offer 30 to 365 days of versioning. Backblaze B2 defaults to 30 days, Synology C2 offers up to 365 days, and iDrive includes unlimited versioning on its higher tiers.
For business-critical data, choose a provider with at least 90 days of versioning. For personal backups, 30 days is usually enough to recover from accidental deletions.
Synology, QNAP, and Netgear compatibility
Synology NAS units integrate most cleanly with cloud backup through Hyper Backup. DSM includes native support for Synology C2, Backblaze B2, AWS S3, Google Drive, Dropbox, and dozens of other targets. QNAP units use Hybrid Backup Sync (HBS) for similar integration, though some users on r/qnap report app installation issues with certain providers. Netgear ReadyNAS supports cloud backup through ReadyDR and third-party apps.
UGREEN NAS units use rclone for most cloud targets, which is powerful but requires some command-line comfort. UGREEN’s built-in Backup app also supports several major providers through a simpler interface.
Bandwidth throttling and initial upload strategy
Initial uploads of multi-terabyte libraries can take days or weeks on a typical home internet connection. Bandwidth throttling prevents your backup job from saturating your internet connection during the day. Most providers, including Backblaze B2 and Synology C2, allow scheduled uploads or rate limiting.
For large initial backups, I recommend running the job overnight for several weeks while you accumulate the data. Some users ship a physical drive to Backblaze (their “Fireball” service) or to AWS Snowball for faster initial seeding, then sync incremental changes over the network.
DIY NAS backup with Synology Hyper Backup and QNAP Hybrid Mount
If you want full control, you can back up to your own S3-compatible storage like MinIO running on a second NAS or a VPS. Hyper Backup on Synology supports custom S3 targets, and QNAP Hybrid Mount supports S3-compatible buckets. This is the cheapest long-term option but requires more setup.
AWS S3 Glacier Deep Archive is another popular choice for archival backups, costing roughly $1 per TB per month. Retrieval takes hours, but for cold storage of old photos and videos, the price is hard to beat. Wasabi and iDrive e2 offer similar pricing with faster retrieval times.
Frequently Asked Questions
What is the best cloud backup service for NAS devices?
Based on our testing, Synology C2 and Backblaze B2 are the top two cloud backup services for NAS in 2026. Synology C2 pairs natively with Synology Hyper Backup, while Backblaze B2 works with almost every NAS brand through rclone or S3-compatible apps. For all-in-one simplicity, Synology C2 is hard to beat. For lowest cost at scale, Backblaze B2 wins at roughly $5 per TB per month.
How do I back up my NAS to the cloud?
On a Synology NAS, install Hyper Backup from the Package Center, choose your cloud provider (Synology C2, Backblaze B2, AWS S3, etc.), set encryption and versioning, then schedule the job. On QNAP, use Hybrid Backup Sync for similar steps. On UGREEN or other NAS brands, install rclone via Docker or use the built-in Backup app. Most setups take under 30 minutes.
Why should I back up my NAS to the cloud?
A NAS is vulnerable to fire, flood, theft, and ransomware. A local backup on an external drive does not protect against disasters that destroy both the NAS and the backup. Cloud backup gives you an offsite copy that survives any local catastrophe. It is also the simplest way to satisfy the offsite requirement of the 3-2-1 backup rule.
Which NAS cloud backup is most secure?
Synology C2 and Backblaze B2 both support AES-256 encryption with customer-managed keys. For maximum security, choose a provider that supports end-to-end encryption where only you hold the key. Enable two-factor authentication on every backup account and use unique, randomly generated encryption keys stored in a password manager.
How much does NAS cloud backup cost?
Cloud backup pricing varies widely. Backblaze B2 costs around $5 per TB per month for storage plus download fees. Synology C2 starts at around $4 per 100GB per year with longer retention plans available. iDrive offers 5TB for around $60 per year. AWS S3 Glacier Deep Archive costs roughly $1 per TB per month for archival storage. For a 4TB home library, expect to pay $20 to $40 per month depending on the provider.
Final Verdict: Which Cloud Backup for NAS Should You Pick?
After three months of testing, our team settled on two clear winners depending on your priorities. For most home users seeking the best cloud backup for a NAS in 2026, the Synology DS225+ paired with Synology C2 is the easiest, most reliable setup. The DSM software removes setup friction, Hyper Backup handles encryption and versioning, and Synology’s 3-year warranty protects the hardware investment.
For advanced users who want raw performance and Docker flexibility, the UGREEN DXP2800 is the best value. The Intel N100 CPU handles Plex, Docker, and cloud backup jobs simultaneously, and the dual NVMe slots give you cache options the competition lacks. Pair it with Backblaze B2 for the lowest cost per TB.
Whichever setup you choose, the most important step is configuring your cloud backup job today. Hardware fails, ransomware strikes, and natural disasters do not wait for you to finish reading comparison guides. Pick a service, schedule the job, and verify a test restore. That is the difference between a backup you can rely on and a backup that only exists in theory.