Protect and share your data, anywhere

Synology C2 Storage is designed to offer the most integrated and cost-effective cloud storage solution for Synology NAS users. All data in transit and at rest are secured using rigorous encryption technologies.

Your investment optimized

Your investment optimized

After you invest in a NAS as a file server to protect and share your data, there might still be a possibility of data loss in the event of human errors or any other disasters. Synology C2 Storage offers our NAS users a plan for data availability and storage expansion on the cloud, thus maximizing business continuity.

Streamlined user experience

Streamlined user experience

Synology C2 provides a uniformed interface and user experience just like in DSM, requiring only a minimal learning curve. The intuitive design and graphic presentation of data create a smooth interaction, making all information easy to track.

Data protection expertise

Data protection expertise

Synology is an expert in data and service protection. Starting with private cloud services, we have a long history of providing reliable IT solutions for our customers. Now we are ready to step into the public cloud sector and take data protection to the next level.

C2 Storage for Hyper Backup

Complete your backup plan with C2 Storage, providing additional protection for data with seamless efforts.

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C2 Storage for Hybrid Share

Connect your Synology NAS with C2 Storage, keeping all data in the cloud while retaining only frequently used data in a local cache on the NAS for fast and low-latency access.

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Complete your backup setup

C2 Storage for Hyper Backup provides a cloud backup solution for enterprise and home users. Storing backups of your files to C2 Storage ensures that essential data remain safe and available even if local copies are hit by disaster or IT failure.

One-stop solution

Synology NAS and C2 Storage combine to offer a comprehensive data protection solution. From service consulting and technical support to hardware warranty, Synology is with you each step of your data protection journey.

Affordable cloud data protection

Unpredictable data center costs, as well as hardware and administration expenses make privately setting up secure remote backup storage a daunting task. C2 Storage plans offer full-featured professional data protection at a predictably low price.

More than what you pay for

Restore full backups, individual files, and multiple historical versions to any destination, with a web portal, desktop client, and Synology NAS integration.

Secure data with military-grade encryption

Enable client-side encryption and make your data unreadable before it leaves your device with advanced AES-256 and RSA-2048 encryption.

A password-protected private key for each task ensures that neither Synology, nor any other person or organization can decrypt, access, or modify your data.

Flexible backup options

Seamlessly integrated with Hyper Backup on your Synology NAS, C2 Storage adds protection and functionality to your existing backup configuration.

Schedule backup tasks

Schedule backup tasks

Run backup tasks at scheduled times and plan transmissions outside peak business hours.

Explore file histories

Explore file histories

Multi-version support means C2 Storage for Hyper Backup users have access to multiple recovery points for each file.

Access data from anywhere

Access data from anywhere

Access your essential data when no Synology NAS is at hand. Download individual files to your PC using Hyper Backup Explorer or the C2 Storage web portal.

Recover data your way

C2 Storage for Hyper Backup offers multiple granular restoration options for greater flexibility. Enable advanced encryption to ensure that only you can read your data and protect the integrity of your backups.

  • Windows, Mac, and Linux

    Windows, Mac, and Linux

    Hyper Backup Explorer client available for all major operating systems lets you retrieve files with a simple click.

  • C2 Storage web portal

    C2 Storage web portal

    Sign in to the Synology C2 Storage portal with your Synology Account to browse and download any file through a streamlined interface.

Synology Hybrid ShareBETA

Synology Hybrid Share connects your on-premises Synology NAS with Synology C2 cloud storage, keeping all data in the cloud while retaining only frequently used data in a local cache on the NAS for fast and low-latency access.

Backed by unlimited cloud scalability

Imagine if you can manage resources efficiently while scaling your business. Hybrid Share is perfectly integrated with our public cloud service C2 Storage, delivering a hybrid-cloud solution that combines key cloud storage benefits including availability, flexibility, and scalability —  all in one Synology NAS box.

A hybrid approach for Synology NAS

You can easily yet substantially expand the value of your Synology NAS infrastructure with low upfront costs.1 Start scaling storage on-demand and on a pay-as-you-go basis, and improve workforce productivity through global file sharing. Achieve more without any compromises of data security or system performance!

Multi-site file sharing

Instantly sync cloud-managed data to each NAS and access them as local cached data, reducing on-premises storage footprint, minimizing bandwidth usage, and cutting associated costs.

Instant data access

Cloud-based data are accessible on your NAS immediately upon the connection of a Hybrid Share folder. This also eliminates the long hours typically needed for data migration or recovery.

Cache data at local needs

Fulfill different system and workplace needs effortlessly. Mount the same Hybrid Share folder on different NAS and customize the maximum cache size for each NAS, ensuring fast data access and optimal storage deployments on each site.

Access cloud data at LAN speeds 

The data cached on your NAS enables fast and native file access experiences via file protocols (e.g., SMB, AFP, NFS, and FTP) and web browsers (e.g., File Station) — even for offline access.

As private as it should be

Your data are encrypted using end-to-end AES-256 standard at all times, no matter whether stored on the public cloud or in transit. Private keys are generated client-side and never get passed to Synology. Only you, the holder of the key, can decrypt and access your own data.

Join the Beta Program

Test drive Hybrid Share with 1 TB of storage

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Release Note


  1. During the Hybrid Share Beta period, each registered preview tester will receive up to 1 TB of free Synology C2 Storage for the Hybrid Share trial. The pricing plans for larger storage capacity will be available upon the official release of Synology Hybrid Share.

Flexible Plans

Synology C2 Storage plans are tailored to different users with features, storage and prices to match their size and needs. Whether you are a home user looking for an easy-to-use cloud backup plan, or a system administrator in search of secure cloud storage with optimized space utilization, Synology’s pricing plans can meet your needs.

  • * The prices above do not include VAT. Local VAT is added if applicable.
  • Plan I
    Plan I protects your data through daily backups with a default retention policy. C2 Storage for Hyper Backup will retain 11 backup versions (one latest, 7 daily, 3 weekly) going back 30 days. Regardless of the cumulative size of your backup versions, only the source data size on your Synology NAS is counted toward your C2 Storage usage.
  • Plan II
    Plan II lets you customize your backup schedules and retention policies. All your backup versions count toward your total C2 Storage usage. However, Plan II-exclusive deduplication helps you cut back storage use by reducing duplicate data across different versions.
    Extra storage space up to 200 TB can be added directly through in-app purchase. To purchase more than 200 TB, please contact us.

No hidden fees

Synology charges no hidden fees besides the subscription cost. File upload, restoration, and browsing are always free of charge on your Synology NAS, through the PC client, and using the C2 Storage web portal.

30-Day Free Trial

Each Synology Account can activate a one-time 30-day free trial. Try all the great features that C2 Storage offers before deciding whether it is the solution for you.

Flexible Usage Plan

Backup storage on C2 Storage can be purchased using one Synology Account and shared with multiple Synology NAS, increasing the flexibility of storage use. You can upgrade your backup plan at any time if more space is needed.

How to Start a Backup Plan with C2 Storage

Sign in to DSM with administrator privileges and install Synology Hyper Backup. Create a backup task and select Synology C2 Storage as the cloud destination. You will be asked to sign in with the Synology Account you wish to use to manage C2 Storage for Hyper Backup. After login, you may start the 30-day free trial if eligible or purchase a C2 Storage plan. For more information on creating backup plans with C2 Storage, see our step-by-step tutorial.


  1. Synology C2 Storage for Hyper Backup requires Hyper Backup version 2.2.4-1213 or above.
  2. Synology does not guarantee compatibility with DSM or Synology C2 Storage for older versions of Hyper Backup
  3. Synology C2 Storage is not supported in China.