Product Brochure

Read more about Clavister W20 in our product brochure.

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Where To Buy

Find a Clavister partner, locate an office near you or contact Clavister Sales. 

Decreased latency

Continuously monitor the latency and quality of your applications and ensure that the best possible service is provided at all times.

Clavister W20

Perfect entry-level next-generation firewall

The Clavister W20 is the perfect next-generation security appliances, targeted towards remote/branch offices and as entry- level enterprise security gateways. The Clavister W20 delivers next-generation firewall security at a break-through price point, offering high performance, advanced routing flexibility and comprehensive features without compromising security.

The Clavister W20 is an ideal solution for any organization that need premium network security in a cost-effective package.


Powerful, feature-rich firewall

The Clavister W20 delivers powerful, feature-rich firewall features, including IPsec/SSL VPN tunnels, advanced routing and firewall performances up to 6 Gbps. And high availability (HA) support is included for free. Buy a second Clavister W20 and configure them as a cluster. No hidden costs, no extra charge
Clavister Subscriptions

Support for Clavister Subscriptions

Being secure means to have it all. Clavister W20 supports Clavister Subscriptions, which include all our product services and our support services. With Clavister Subscriptions your installation is always secure and fully served.
Clavister W20

Excellent value for money

The Clavister W20 packs a lot of processing power into the 1U 19” rack. This cost-effective solution offers Gigabit firewall security for a wide range of network applications.

Easy to use, deploy and manage

Setting up and configuring your Clavister W20 is easier than ever. In fact, much of the process is completely automated. With included support for Clavister InControl, Clavister Web Management and Clavister CLI, you choose your way of working.
 Clavister W20Clavister W20 Pro
Firewall Performance* (Gbps) 4 6
VPN Performance (Gbps) 1 1,5
Concurrent Connections 500,000 750,000
Concurrent VPN Tunnels (SSL VPN/IPsec) 500/500 1,000/1,000
Ethernet Interfaces 6 x 1GbE (RJ45)
Management/High Availability (HA) Ports Yes, any interface can be configured for Management/High Availability.
Virtual Interfaces (VLAN 802.1q) 256 512
Virtual Routers 25 50
Support for High Availability (HA) Yes Yes
Clavister cOS Clavister cOS Core
Form Factor 19" 1U rack mount
    • * Firewall Performance is based on RFC 2544. Actual performance may vary depending on network conditions and number of activated services.
Name Description Date

This product brochure describes the Clavister W20.


Use this document to compare Clavister cOS Core products.


This document describes the Clavister Secure WAN Load Balancing solution.


This document describes the Clavister True Next-Generation Firewall solution.

Clavister Management

This product brochure describes the various management options available when managing a Clavister Security Gateway. It includes information about Clavister InControl, Clavister Web Managemenet and Command-Line Interface (CLI).

Clavister Subscriptions

This document describes the Clavister Subscriptions services available to all Clavister products, including Clavister Security Subscription (CSS) and Clavister Product Subscription (CPS).


This document describes Clavister User Identity Awareness, a new feature in Clavister cOS Core 10.10.


This product brochure describes the Clavister InControl SDK.

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