Fortinet FortiGate FG-400E Network Security/Firewall Appliance - Email Security - 16 Port - 1000Base-X, 1000Base-T - Gigabit Ethernet - 4 GB/s Firewall Throughput - SHA-256, TLS 1.3, AES (256-bit), SSL - 5000 VPN - 16 Total Expansion Slots - 1U - Rack-mountable: