ClearBOX 551

ClearBOX 551 delivers Smart Server Technology with up to 24TB or storage at an amazing price. This single or dual processor, mid to enterprise level model is designed to scale and deliver a wide variety of IT functions for small, medium & distributed environments.


  • Includes: ClearOS 7, Business Platinum Subscription (5/yr)
  • All-in-One Server, Network, & Gateway Security for Up to 750 users
  • Intended for Small, Medium & Distributed Office Environments
  • Ships with ClearVM, ClearOS 7, Business Edition, or both pre-installed

ClearBOX 551 | Overview

ClearBOX 551 delivers a never before seen turn-key experience, enabling one server to perform 75+ IT functions.

These servers are built to run (and arrive pre-installed and pre-tested with) ClearOS 7, Business Edition. ClearBOX is managed from any browser from the cloud-managed Webconfig console. No longer are servers managed via text files and command lines. 

  • Arrives Turn-Key, Ready To Configure
  • Enterprise Functionality. Small Business Price.
  • Local Storage: models available up to 24TB
  • Memory: models available up to 1024GB
  • Dual Processors, Intel Xeon E5 v3 Technology
  • SATA, SSD, or SAS Drive Configurations
  • Up to 2 ISP Connections
  • Intended for Small to Medium Environments
  • All-in-One Server (up to 750 users)*
  • Mail Server (up to 1000 users)*
  • Application Server (up to 10,000 users)*
  • Internet Security Appliance (up to 10,000 users)*
  • Content Filter & Proxy Server (up to 10,000 users)*
  • Network File Server (up to 20,000 users)*
  • Pre-Installed & Tested with ClearOS 7, Business Edition
  • Includes: 3/yr ClearOS Business Silver Subscription (self-support)
  • Includes: 3/yr ClearVM Private Cloud Management
  • Includes: 3/yr ClearBOX Hardware Warranty 
  • Includes: 75+ IT Functions
  • Includes: 3rd Party & Business Exclusive Apps

ClearVM | Overview

ClearBOX offers the option to ship with ClearVM, Standard Edition pre-installed, pre-tested, and ready for your begin deploying virtual machines out of the box. ClearVM allows you to deploy VMs with ease all centrally managed.


    The Fastest Setup

    Virtualized Infrastucture Within 10 Minutes


    Zero Maintenance

    ClearVM Livevisor is Self-Upgrading


    For Distributed Workloads

    Handles Geo-Locations Out of the Box


ClearVM (Patent Pending US 13/460,660) has more then 5 years in development, more then 38 VM library templates, installed in more then 1,433 Cities around the World with installations and more then 3,800 dedicated admins.

ClearVM | Subscrpitions

Not Available on ClearBOX


  • Up to: 2 Physical Servers
  • Up to: 8 Virtual Servers
  • Up to: 8 CPU Cores
  • Up to: 2 Teammates
  • Up to: 2 Geo-Locations
  • Community Support
for 36 Months


  • Up to: 10 Physical Servers
  • Up to: 40 Virtual Servers
  • Unlimited CPU Sockets
  • Unlimited Teammates
  • Unlimited Geo-Locations
  • -
Contact Sales to Upgrade


  • Unlimited Physical Servers
  • Unlimited Virtual Servers
  • Unlimited CPU Sockets
  • Unlimited Teammates
  • Unlimited Geo-Locations
  • ClearCARE Support

ClearOS | Overview

ClearBOX arrives turn-key with ClearOS 7, Business Edition pre-installed, pre-tested, and ready for your begin configuring out of the box. ClearOS is the #1 Hybrid Small Business Server on the market today.


One Platform. One Interface.

Beginning in 2001 we ensured our software and appliances were cloud managed enabling you to more efficiently manage your deployments and multi-site environments from one simple interface. ClearOS provides a wide variety of IT functions for Cloud, Gateway, Network, Server and more; all built into one platform. We've designed ClearOS to be managed through Webconfig using any browser. This means you boot up your access device of choice and have all the tools at your fingertips you need to keep your system running. Make adjustments from your laptop in the office or from your smart phone on the road.

Clean, Simple Webconfig

ClearOS delivers a simple & beautiful browser-based interface. Leave the black screened world of command line interfaces behind. With ClearOS Professional, anyone can learn to manage their IT environment.



Robust VPN Features.

Get one of the most complete VPN systems. Make your network act as one even if you are running remote offices in different parts of the world.

  • Dynamic VPN - Utilize IPsec VPN to manage dynamic IP addresses
  • OpenVPN - Provide secure remote access to your local system
  • PPTP VPN - Set up your VPN with a PPTP connection

ClearOS Marketplace

ClearOS Business is the most versatile IT Operating Platform ever created. ClearOS includes IT functions from access point control to 3rd party, cloud application management.

The 75+ IT Functions built into ClearOS are delivered as apps, which you install as needed on your ClearOS server. Integration with existing cloud apps and service, combined with the delivery of new and dynamic cloud apps and services, makes managing your IT even easier.

ClearOS also provides the needed on premise functions for your server, networking and security needs. ClearOS is equipped with the ClearOS Marketplace which allows you to scale the functionality of your server with a simple point-and-click method.



Enterprise Grade Security

It's really quite simple, no one likes to feel as though your systems are at risk or that your data may be compromised. With ClearOS, protecting your network just got a whole lot easier.

ClearOS Professional keeps out unwanted viruses, spam and hackers, by offering you the latest in cutting-edge protection.

  • Antivirus - Keep your entire network safe by filtering viruses at the edge
  • Antiphishing - Protect your network from malicious links
  • Intrusion Detection - Filters all traffic at the gateway
  • Contextual Analysis - Intelligent analysis based upon page content
  • L7 Protocol Filter - Analyze packets and filter IP, port or protocol
  • Access Control - Apply time based restrictions to users & groups

Data Recovery

Far too often businesses procrastinate on implementing the necessary steps to ensure your business is functional at all times. ClearCenter provides simple scalable solutions to fit the needs of any remote storage requirement; be it 5 GB – 500 TB of offsite data backup.

Another feature which is beneficial to ClearOS users around the world is the Remote Configuration Backup. This snapshot of your system allows you to replicate these configurations across subsequent installations in your environment simply.

As the IT Administrator you decide when, what and how your system backs up and can rest assured that our global data centers keep your data secure and accessible at all times.



ClearOS | Features

Cloud Apps

  • Dropbox®
  • Google Drive® Sync (coming)
  • Microsoft Office365® Connector (coming)
  • Dynamic DNS
  • Dynamic VPN
  • Remote Security Audit
  • Remote Data Backup
  • Remote System Monitor
  • Google Apps®, Accounts Sync
  • Antimalware Signatures
  • Antispam Signatures
  • Content Filter Blacklists
  • IDS Signatures

Network Apps

  • Bandwidth &amp QoS Manager
  • 1-to-1 NAT Firewall
  • Custom Firewall
  • DMZ Firewall
  • Egress Firewall
  • Incoming Firewall
  • Port Forwarding
  • Network Map
  • DHCP Server
  • DNS Server
  • Multicast DNS Server
  • NTP Server
  • RADIUS Server
  • SSH Server
  • UPnP
  • OpenVPN
  • ibVPN
  • PPTP Server
  • IPsec VPN
  • IP Settings
  • Multi-WAN
  • Upstream Proxy

Gateway Apps

  • Gateway Antiphising
  • Gateway Antivirus
  • Kaspersky® Antimalware
  • Content Filter Engine
  • DNSThingy
  • Web Access Control
  • Web Proxy Server
  • Web Proxy Auto Detection
  • Intrusion Detection System
  • Intrusion Prevention System

Server Apps

  • MariaDB Database Server
  • Directory Server
  • Microsoft Active Directory® Connector
  • Google Apps® Connector (coming)
  • Antimalware File Scanner
  • FTP Server
  • Flexshare
  • ownCloud
  • Photo Organizer
  • Plex Media Server
  • Serviio Media Server
  • Windows Networking (Samba)
  • Advanced Print Server
  • Greylisting
  • IMAP &amp POP Server
  • Mail Antispam
  • Mail Antivirus
  • Mail Archive
  • Mail Retrieval
  • Kaspersky® Mail Antimlware
  • Roundcube Webmail
  • SMTP Server
  • Zarafa® Collaboration (exchange)
  • Web Server

System Apps

  • Master / Slave Synchronization
  • Administrators
  • Groups
  • Account Manager
  • Account Import
  • Password Policies
  • Users
  • User Certificates
  • User Profiles
  • Software RAID Manager
  • Storage Manager
  • ClearOS Business Marketplace
  • ClearCARE Support

Reporting Apps

  • Bandwidth Viewer Report
  • Disk Usage Report
  • Log Viewer
  • Network Report
  • Network Visualizer
  • Process Viewer
  • Resource Report
  • SMART Monitor
  • Events &amp Notifications System (coming)
  • System Report
  • IDS Report (coming)
  • IDS Viewer (coming)
  • Content Filter Block Report (coming)
  • Antimalware Threat Report (coming)
  • SSH Access Log Report (coming)
  • Remote Audit Log Report (coming)
  • Penetration Testing Report (coming)

ClearOS | Subscriptions

DID YOU KNOW: Deploying ClearOS 7, Business Edition saves you hundreds or even thousands of dollars a year. The Business Edition bundles in many available paid apps and services, along with commercial third party add-ons which are more costly as al a carte options on other ClearOS editions.Check out the benefits of using ClearOS 7, Business below:

Not Available on ClearBOX

Business Subscription

  • Includes 75+ IT Functions (apps)
  • ClearOS 7, Business OS & App Access
  • Quality Tested Code & Updates Only
  • Master / Slave Directory Synchronization
  • Microsoft® A.D. Connector (up to 50 users)
Contact Partner to Downgrade

Business Subscription

  • BRONZE Subscription (plus the following)
  • + Commercial URLs for Content Filter
  • + Content Filter Blacklisting
  • + Commercial Signatures for IDS / IPS
  • + Commercial AV / AS Rules
  • + Remote System Configuration Backup
  • + Dynamically Managed VPN
Contact Partner to Downgrade

Business Subscription

  • SILVER Subscription (plus the following)
  • + ClearCARE Level I (Break/Fix Support)
  • + 8/5 Tech-Support (M-F 10-18:00 EST)
  • + Unlmited Tickets (Incl. 5 Hour Support Pack)
  • + Email Support
  • + Remote Login Support
  • + 1 Business Day Initial Support Response
for 60 Months

Business Subscription

  • GOLD Subscription (plus the following)
  • + ClearCARE Level II (Troubleshooting Support)
  • + 8/5 Tech-Support (24/7 *outages only)
  • + Unlmited Tickets (Incl. 10 Hour Support Pack)
  • + Phone Support
  • + 4 Hour Initial Support Response
  • + Remote System Monitor Alerts
  • + Remote File Security Audit Alerts 

ClearBOX 551 | Specifications 

Form Factor

1u rack server

Number of Processors
Processor Models

Intel Xeon E5-2600 v3 series processors:

  • Intel® Xeon E5-2620 v3 2.40GHz 6c
  • Intel® Xeon E5-2630 v3 1.80GHz 8c
  • Intel® Xeon E5-2670 v3 2.30GHz 12c
  • Intel® Xeon E5-2698 v3 2.30GHz 16c*

16 slots for DDR4 RDIMMs or LRDIMMs:

  • 16GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)*
  • 32GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)
  • 64GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)
  • 128GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)
  • 256GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)*
  • 512GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)*
  • 768GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)*
  • 1024GB (DDR4 RDIMM 2133MHz 1.2v 2Rank)*
Local Storage

Supports 2.5" SSD, SATA or SAS Hard Disk Configurations:

  • 3 x 480GB SATA Solid State Disk (RAID 0/1/5)
  • 3 x 960GB SATA Solid State Disk (RAID 0/1/5)
  • 5 x 480GB SATA Solid State Disk (RAID 0/1/5/6/10)
  • 5 x 960GB SATA Solid State Disk (RAID 0/1/5/6/10)
  • 8 x 480GB SATA Solid State Disk (RAID 0/1/5/6/10/50)
  • 8 x 960GB SATA Solid State Disk (RAID 0/1/5/6/10/50)
  • 300GB SAS Hard Drive*
  • 900GB SAS Hard Drive*
  • 1.8TB SAS Hard Drive*

Supports RAID 0, 1, 10, 5, 50, 6, and 60

Users a supercapacitor to protect RAID cache data from power failures.*

Supports RAID state migration, RAID configuration memory, self-diagnosis, and remote web setting

Network Ports Four GbE ports (10GbE optional upon request)
Power Supply

2 x 460w Gold Power Supply

  • 110 V to 220 V AC
  • 240 V to 380 V DC
  • -48 V DC
  • 5°C to 45°C (41°F to 113°F)
Note: The ClearBOX 500 servers operating at 40°C do not support SSDs, and the fault of one fan may affect CPU performance
Dimensions (W x D x H) 447 mm x 710 mm x 43.6 mm (17.60 in x 27.95 in x 1.72 in)
In the Box
  • 1u Rail Kit
  • Nema 5-15 (North America) Power Cable
  • Quick Start Guide
  • USB Software Key  

 * Not offered in pre-configured models. Contact our team or a local partner to customize your smart server.

ClearBOX 551 | Compare

ClearBOX Series
Intended Environment
  • Home Office
  • Small Office
  • Medium Office
  • Large Office
  • Distributed Environments
  • Data Center
Intended IT Functions
  • Mail Server
  • Application Server
  • Internet Security Appliance
  • Content Filter &amp Proxy Server
  • Network File Server
  • All-in-One Server
Intended User Load
  • Zarafa Mail Server
  • IMAP &amp POP Server
  • Application Server2
  • Internet Security Appliance
  • Content Filter &amp Proxy Server
  • Network File Server
  • All-in-One Server
Hardware Specifications
  • CPU
  • Memory
  • Disk
  • Power
  • Rack Mountable
  • Up to 25
  • Up to 50
  • Up to 25
  • Up to 50
  • Up to 50
  • Up to 100
  • Up to 15
  • 1x Intel Atom®
  • Up to 4GB
  • 1x 2.5" SATA
  • 1x P/S
  • -
  • Up to 100
  • Up to 350
  • Up to 50
  • Up to 200
  • Up to 200
  • Up to 400
  • Up to 75
  • 1x Intel iSeries®
  • Up to 16GB
  • 2x 2.5" or 1x 3.5" SATA
  • 1x P/S
  • Yes
  • Up to 10001
  • Up to 1000
  • Up to 10000
  • Up to 100001
  • Up to 100001
  • Up to 200001
  • Up to 750
  • 2x Intel Xeon®
  • Up to 1024GB
  • 8x 2.5" or 4x 3.5" SAS
  • 2x Hot Swappable P/S
  • Yes
  • Up to 10001
  • Up to 3500
  • Up to 10000
  • Up to 100001
  • Up to 100001
  • Up to 200001
  • Up to 750
  • 2x Intel Xeon®
  • Up to 1024GB
  • 25x 2.5" or 12x 3.5" SAS
  • 2x Hot Swappable P/S
  • Yes

ClearBOX 551 | Documentation

User Guide Coming
Quick Start Guide Coming
Datasheet Coming