Product Overview
There are five models of the Barracuda Instant Messaging Firewall currently available. The entry level model handles over 200 users, while the largest model to date handles 7,000. These specifications are not limits of the system, but are the recommended capacity.

Model Comparison Model 220 Model 320 Model 420 Model 620 Model 820             CAPACITY*           Max Users 200 500 1,000 3,000 7,000             HARDWARE           Rackmount Chassis 1U Mini 1U Mini 1U Mini 1U Fullsize 2U Fullsize Dimensions (in.) 16.7x1.7x14 16.7x1.7x14 16.7x1.7x14 16.7x1.7x22.5 16.7x3.4x26.5 Dimensions (cm.) 42.4x4.3x35.6 42.4x4.3x35.6 42.4x4.3x35.6 42.4x4.3x57.1 42.4x8.6x67.3 Weight (lbs. /kg.) 17 / 7.7 17 / 7.7 18 / 8.2 35 / 15.9 50 / 22.7 Ethernet 1 x 10/100 1 x 10/100 1 x 10/100 2 x Gigabit 2 x Gigabit Ethernet Passthrough** 1 x 10/100 1 x 10/100 1 x 10/100 1 x Gigabit 1 x Gigabit AC Input Current (Amps) 1.0 1.2 1.4 1.8 3.5 Redundant Disk Array (RAID)       Hot Swap Redundant Power Supply         Hot Swap ECC Memory                   FEATURES           Hardened and Secure OS Capture and Manage Public IM Internal Secure IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers LDAP and Active Directory Support   Per User and Group Access Control   Ethernet Bypass Hardware   Linked Management     Customizable Branding

*Capacity depends on enviroment and selected options. **Each ethernet passthrough has two ethernet jacks.

Barracuda Instant Messaging Firewall 220

Features 1U rack mount mini chassis 200 user capacity Capture and Manage Public IM Internal IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers

Barracuda Instant Messaging Firewall 320

Features 1U rack mount mini chassis 500 user capacity Capture and Manage Public IM Internal IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers LDAP and Active Directory Support Per User and Group Access Control Ethernet Bypass Hardware

Barracuda Instant Messaging Firewall 420

Features 1U rack mount mini chassis 1,000 user capacity Capture and Manage Public IM Internal IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers LDAP and Active Directory Support Per User and Group Access Control Linked Management Ethernet Bypass Hardware

Barracuda Instant Messaging Firewall 620

Features 1U rack mount Fullsize chassis 3,000 user capacity Capture and Manage Public IM Internal IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers LDAP and Active Directory Support Per User and Group Access Control Linked Management Customizable Branding Ethernet Bypass Hardware

Barracuda Instant Messaging Firewall 820

Features 2U rack mount Fullsize chassis 7,000 user capacity Capture and Manage Public IM Internal IM Server/Client Centralized Policy Management Keyword Notification Secure File Transfer Disclaimers LDAP and Active Directory Support Per User and Group Access Control Linked Management Customizable Branding Ethernet Bypass Hardware