Imagine a data center that slows down every time traffic spikes. You need a firewall that can keep up without dropping packets. The Cisco Firepower 4125, 45 Gbps 1U Rack Mounting Next-Gen Firewall is built for exactly that. It protects your network, inspects traffic, and stops threats while delivering high-speed performance. If you are tired of bottlenecks and risky breaches, this device is the answer.
Cisco Firepower 4125, 45 Gbps 1U Rack Mounting Next-Gen Firewall
Many businesses struggle with firewalls that cannot handle modern bandwidth demands. When a firewall lags, users experience slow apps, video calls drop, and attackers find openings. This problem hurts productivity and can cost money. The Cisco Firepower 4125 solves the issue by offering 45 Gbps of firewall and intrusion-prevention throughput in a compact 1U chassis. It delivers real-time threat detection, hardware-accelerated TLS decryption, and up to 25 million concurrent sessions. In short, you get enterprise-grade security without sacrificing speed, and the device fits easily into any standard rack.
Key Features
- 45 Gbps firewall + AVC throughput for large data flows.
- 45 Gbps NGIPS performance with deep packet inspection.
- 8.5 Gbps hardware TLS decryption for encrypted traffic.
- 19 Gbps IPSec VPN throughput supporting up to 20,000 peers.
- 1U rack-mountable form factor with included mounting rails.
- Multiple network module options, including 2 100 GbE QSFP28.
- 800 GB internal storage for logs and policy data.
- Six hot-swap fans and >92 % power efficiency at 50 % load.
- Redundant 1+1 power supplies for uninterrupted operation.
- Serial console and USB ports for easy management.
Specifications:
| Form Factor |
1U Rack Mount Appliance |
| Dimensions (H × W × D) |
1.75 × 16.89 × 29.7 in (4.4 × 42.9 × 75.4 cm) |
| Firewall Throughput (FW + AVC, 1024B) |
45 Gbps |
| Firewall + AVC + IPS Throughput (1024B) |
45 Gbps |
| NGIPS Throughput (1024B) |
45 Gbps |
| Stateful Firewall Throughput (ASA mode) |
80 Gbps |
| Stateful Firewall (Multiprotocol) |
45 Gbps |
| Concurrent Sessions (with AVC) |
25 million |
| New Connections per Second (AVC) |
269,000 |
| Firewall New Connections per Second (ASA mode) |
1.1 million |
| TLS Hardware Decryption Throughput |
8.5 Gbps |
| IPsec VPN Throughput |
19 Gbps |
| Maximum VPN Peers |
20,000 |
| Multi-Instance Support |
Yes |
| Application Visibility & Control (AVC) |
Supports 6,000+ applications |
| URL Filtering |
120+ categories, 280M+ URLs |
| Management |
Cisco Secure Firewall Management Center / Cisco Defense Orchestrator |
| High Availability |
Active/Standby (appliance or instance-level) |
| Clustering Support |
Up to 16 appliances |
| Storage |
800 GB |
| Supervisor Module |
Cisco Secure Firewall 4000 Supervisor (8 × 10G ports + expansion slots) |
| Max Interfaces |
Up to 4 × 100G, 24 × 10G, up to 8 × 40G (with modules) |
| Network Modules Support |
1G / 10G / 40G / 100G Ethernet modules |
| Console Port |
1 × RJ-45 |
| USB Ports |
1 × USB 2.0 |
| Power Supply |
Dual 1100W AC (optional redundancy) |
| Redundancy |
1+1 power redundancy |
| Cooling |
6 hot-swappable fans |
| Operating Temperature |
0 to 40°C |
| Operating Altitude |
Up to 10,000 ft |
| Weight |
~17.87 kg (fully loaded) |
| Security Features |
IPS, malware defense, sandboxing, threat intelligence (Cisco Talos) |
