Describe D-Link DFL-870:

Powerful security solution that provided integrated Firewall, Intrusion Prevention System(IPS), Anti-Virus, Load Balance, Fault-Tolerance, Zone-Defense, Web Content Filtering, User Authentication, Denial of Service (DoS) protection as well as Virtual Private Network (VPN) support.
6 x 10/100/1000Mbps configurable Ethernet ports
4Gbps firewall throughput
1Gbps 3DES/AES VPN throughput
450 Mbps IPS/IDP Throughput
600 Mbps Antivirus Throughput
700 Mbps Application Throughput
Concurrent session: 500,000
VPN Tunnel: 200