The Cisco Secure Firewall 3105 is designed for midsize enterprises seeking robust security with a strong return on investment. It offers a firewall throughput of 17-21 Gbps and IPS throughput of 17-21 Gbps, ensuring high performance for demanding network environments. Additionally, it supports IPSec VPN throughput of 11-13.5 Gbps and can handle up to 3,000 VPN peers, making it suitable for organizations needing secure, high-speed connections and comprehensive threat protection.