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All-in-One Cloud Storage Gateways

CTERA C800, C400 and C200CTERA's cloud storage gateways are hybrid appliances that seamlessly combine local storage, cloud storage, data protection functionality and collaboration capabilities in a single, cost-effective package. Ideal for enterprise branches and remote offices, CTERA's appliances can replace legacy file servers and tape backup in a single solution with significant cost savings.

The appliances feature a full set of Network Attached Storage (NAS) capabilities and comprehensive backup functionality, utilizing on-premises storage capabilities for speed and local sharing, while taking advantage of cloud storage for off-site backup, universal access, file sharing, and folder synchronization.

The On-Ramp to Cloud Storage

CTERA cloud storage gateways enable selective replication of data to the cloud providing full control over cloud storage use and costs, while making it possible to access files, share them and restore them directly from the cloud.

Extended File Sync & Share

CTERA cloud storage gateways can extend file sync & share functionality by providing synchronization from the appliance. This extends EFSS to include remote office synchronization, content dissemination and even software package distribution, as well as allowing office users to sync files from their shared network drives to their mobile devices, and collaborate with other users on those files.

Comprehensive Data Protection

With the included CTERA backup software and managed agents, the CTERA cloud storage gateways provide a highly cost-effective and comprehensive solution for server, desktop and laptop backup. Key features include:

  • Automated scheduled local & cloud backup 
  • Selective file backup and "bare metal" disk-level backup
  • Bandwidth optimized cloud backup with block-level de-duplication
  • Supports Windows, Linux and Mac
  • Application-aware backup for Microsoft Exchange, SQL Server, SharePoint and Active Directory
  • Microsoft Hyper-V backup and restore for VMs

Robust NAS Capabilities

CTERA appliances provide a rich set of storage capabilities with enterprise-level security and management features:

  • RAID for redundancy in case of disk failure (available on the C200, C400 and C800)
  • CIFS, NFS and AFP (Apple Filing Protocol) for network file sharing and folder synchronization
  • User quotas and role-based user management
  • Thin-provisioned snapshots with Next3
  • Active Directory integration
  • Web access using DDNS and WebDAV (via CTERA Portal)

Centralized Management

CTERA cloud storage gateways can be managed remotely via CTERA Portal. Template-based management and remote firmware upgrades make it possible to manage numerous appliances while maintaining minimal on-site IT and reducing total cost of ownership.


Below is a side-by-side comparison of our appliance models and specifications:

C800 Plus
Ideal for Small office / SB Branch / SMB Branch / SMB Branch / SMB
Storage bays 2 x 3.5" SATA 4 x 3.5" SATA 8 x 3.5" SATA 8 x 3.5" SATA
Storage capacity 6TB 16TB 32TB 32TB
RAID 0/1 0/1/5/6 0/1/5/6 0/1/5/6
USB USB 2.0 USB 2.0 2 x USB 2.0 2 x USB 2.0
Ethernet 1 Gigabit 2 x 1 Gigabit 2 x 1 Gigabit 2 x 1 Gigabit
File systems NTFS, FAT32, EXT3/NEXT3
Network protocols CIFS, NFS, AFP, FTP, WebDAV, rsync
cloud services
Incremental Backup, Cloud Backup, Remote Access, Remote Management & Monitoring, Firmware upgrades
Max. local Server Agents
3 10 30 50
Max. local Workstation Agents 20 100 150 250
Max. CIFS connections 50 100 500 1000
Form factor Desktop 1U rackmount 2U rackmount 2U rackmount
Datasheet Datasheet Datasheet Datasheet

Appliance (Local) Features

  • Clientless backup of local desktops and file servers
  • Roaming laptop backup with included CTERA Workstation Agents
  • Application-aware server backup with CTERA Server Agent (optional add-on)
  • RAID and JBOD
  • NTFS/FAT32/Ext3/Next3 file systems
  • UPnP and Bonjour discovery
  • Windows file sharing (CIFS), Apple file sharing (AFP), NFS, Time Machine, rsync, WebDAV
  • FTP server
  • iSCSI target (except C200)
  • Predictive Drive Failure Prevention
  • Resizable logical volumes
  • Thin-provisioned multiple snapshots with Next3
  • AES-256 volume encryption
  • Microsoft Active Directory support
  • Role-based user management
  • User disk quotas
  • S.M.A.R.T HDD monitoring
  • UPS integration
  • Secure remote management and real-time monitoring
  • Custom email alerts and reports
  • Full-text search
  • Web-based UI requires MS Internet Explorer 7, Firefox 13, Chrome 19 or newer

Cloud Features

  • Optimized incremental cloud backup with data compression
  • Block-level global de-duplication
  • Previous file versions with nested snapshot retention
  • Automated scheduled backup
  • Folder and attribute-based backup sets
  • Restore methods: Windows Previous Versions, appliance Web interface, and via CTERA Portal file manager
  • File sync & share for selected user folders
  • Read/write cloud file manager
  • Offline seeding option for assisted initial backup
  • Secure Web-based direct access to backups from anywhere
  • Project-based and time-limited  invitation-based cloud file sharing
  • 256-bit AES encryption of all backups, with SHA-1 fingerprinting and user-specific secret passphrase
  • Data transfer over 128-bit SSL
  • Remote diagnostics tools
Online Backup Review "CTERA has been ahead of the competition by launching their appliance based hybrid solution back in 2008 after realizing the real need for a cost-effective, all-in-one solution for centralized storage and secure off-site data protection.

CTERA rightly deserves a 4 on a maximum of five stars."
network world "A SAN, NAS and cloud storage solution that's simple to use, simple to manage and has very good performance, all at a reasonable price."

"[CTERA] has gone to market with an approach to cloud storage that simply makes very good sense for small or mid-sized businesses... the CRN Test Center can fairly say that the solution is fast and easy to deploy, works as advertised and provides solid management and administration capabilities...

The bottom line: CTERA's technology and service are elegant, easy and fast to deploy, flexible and cost-effective.

Download the full CRN review e-print here

syscon media "Installation is a breeze... Configuration is easy...It just works. And it is fast. In summary, the CloudPlug is a great little box, and its getting better.." 
bitbag "Business owners - You are who this is marketed for and with good reason. This product is for you!
It just makes things easy and you have the security of knowing you have the information you want backed up.Go and get this now because it doesn't get much simpler than this."
Linux planet "The CloudPlug is one of those devices you simply plug in and let it do its really does pack a lot of capability into a tiny device. Do yourself a favor and back up your critical files right now."
small net builder "CTERA did a nice job with this product. The user interface was very well done, and the cloud-storage features worked as advertised... For small-office or home use, the CloudPlug has surprisingly fast performance, low power consumption, a tiny footprint and is completely silent."
syscon media "In summary, the CTERA CloudPlug is a device that lives up to its marketing.
It is an easy way to take a USB or eSATA drive and put it on a network with a minimum of hassle. The device is simple to set up and easy to use."

Cloud Storage Gateways


CTERA Networks revolutionizes storage, data protection and collaboration for the distributed, mobile enterprise. CTERA's Enterprise Data Services Platform enables IT to centrally manage services including remote office storage, endpoint backup, and file sync & share. CTERA's platform is used by leading service providers and enterprises, on the public or private cloud infrastructure of their choice.
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