Sophos UTM 320 Security Appliance with Power Cord US. The Sophos UTM 320 simplifies protection for mid-sized businesses and enterprise divisions with up to 800 users. A combination of fast- and gigabit-ethernet network ports enables flexible deployment within medium-sized networks. And it scales to meet your growing demands. With peak firewall performance rates of more than 1 Gbit/s, the UTM appliance can protect hundreds of users against common hacker attacks. The Sophos UTM 320 can also be used with enterprise-class technologies like WAN link balancing, hot-standby and Sophos" patent-pending "One-Click-Clustering."