GFI launches the all-new Kerio NG520 and NG521
The Kerio NG520 and NG521 replace the outgoing NG510 and NG511, and are available now for same-day shipping exclusively from YOT LTD via FUSE.

- Models
- Kerio NG520 / NG521
- Throughput
- 2.5x previous gen
- Ports
- Up to 2.5G Ethernet
- Shipping
- Same-day via FUSE
Why these models matter
2.5x faster throughput for packet inspection and traffic handling in high-traffic environments, with multi-gigabit WAN/LAN ports up to 2.5G Ethernet.
AI-powered intrusion prevention, integrated VPN and unified threat management covering antivirus, content filtering and application control in a single device.
Built for SMBs and MSPs
Flexible deployment, scalable licensing and full remote management make these appliances a natural fit for service providers managing multiple client sites.
Existing Kerio customers migrating from the NG510/NG511 will find the transition straightforward and immediately beneficial.
What's coming next
GFI has announced three further models in the same next-generation family: the compact NG120 for branch offices, the mid-range NG320, and the NG720 for high-availability enterprise deployments.
All are available to order through FUSE with immediate availability, EU delivery options and partner discounts.