The Juniper SRX4200 delivers high-capacity enterprise protection for data centre environments where application traffic and secure access must stay consistent under load. With strong inspection performance and high availability support, it helps busy sites maintain dependable security as demand grows.
As encrypted traffic, segmented access and application density grow, infrastructure teams need security control points that keep inspection consistent without becoming a constraint on scale.
Juniper SRX4200 is an enterprise firewall built for production environments that need stronger protection at the edge, in regional sites and across consolidated campus networks. It delivers 120 Gbps firewall throughput and 40 Gbps NGFW throughput for busy security boundaries.
With support for up to 15,000,000 concurrent sessions and HA support, the platform is suited to environments that must maintain policy enforcement through traffic spikes, user growth and inter-site connectivity. That makes it a practical fit where security controls must stay active while operations keep moving.
The result is a security platform that helps reduce bottlenecks, supports cleaner segmentation and gives teams more room to absorb workload growth without redesigning the control plane. It is built for organisations that want stronger perimeter and internal enforcement with less pressure on the wider infrastructure.
Speak with our team about the Juniper SRX4200 and how it can fit your production security requirements.
The Juniper SRX4200 is a security platform for enterprise network environments, delivering scalable protection and operational resilience for demanding perimeter and service edge deployments.
High-Throughput Security Processing
The platform is designed to deliver security inspection performance for high-demand network environments, with NGFW throughput validated at 40 Gbps.
Large Session Scale
It supports extensive concurrent connection capacity to maintain stateful security inspection across busy enterprise traffic patterns, with up to 15000000 concurrent sessions.
Enterprise Edge Alignment
Its architecture is suited to perimeter and service edge roles where consistent policy enforcement and traffic handling must stay aligned to network growth.
Platform-Level Security Control
The system is structured to apply network security functions within a dedicated appliance platform rather than as an add-on to general-purpose infrastructure.
High-Availability Support
The platform supports HA deployments to help maintain security service continuity during planned maintenance or node interruption.
Operational Continuity
Its design supports resilient security operation for environments that need continuous policy enforcement and traffic inspection.
Consistent Policy Enforcement
The system provides a controlled security architecture that helps apply network policy consistently across protected traffic flows.
If you are designing a security edge that must balance throughput, session scale, and availability, our team can help align the SRX4200 to your network architecture.
| Product Family | Juniper SRX |
|---|---|
| Product Series | SRX4000 |
| Deployment | Data Centre |
| Primary Use Case | Data Centre |
| Product Tier | Standard |
| Firewall Throughput (Gbps) | |
| NGFW Throughput (Gbps) | |
| IPsec VPN Throughput (Gbps) | |
| SSL Inspection (Gbps) | |
| Maximum Concurrent Sessions | |
| New Sessions per Second | |
| Maximum VPN Tunnels | |
| Port Configuration | 16×SFP+ |
| HA Support | |
| Power Redundancy | Hot-swappable PSUs |
The Juniper SRX4200 is an enterprise firewall for higher-throughput edge security, segmentation and controlled access in finance, healthcare, data centres, manufacturing, and energy and utilities. It fits sites that have outgrown lower-capacity models and need more headroom without changing their security tier.
Financial teams use the SRX4200 where campus and regional traffic volumes outpace SRX4100 capacity. It supports inspection, segmentation and secure connectivity for regulated data flows while keeping busy user, branch and data-centre links under control.
Healthcare estates deploy the SRX4200 when clinical systems, guest services, partners and remote access must be separated at scale. It gives security teams more throughput headroom for audit-focused traffic handling across large hospital environments.
Data centre teams choose the SRX4200 at the perimeter or DMZ when application traffic grows but bottlenecks are not acceptable. It provides stronger 1U edge protection for segmentation and enforcement in enterprise hosting environments.
Manufacturers use the SRX4200 to separate OT, office IT, cameras and remote service paths across larger industrial sites. It supports growing device counts and inter-site links where consistent firewall scale is essential.
Energy and utilities environments deploy the SRX4200 where OT, IT and remote operational traffic must be inspected and segmented reliably. It adds the capacity needed for regional control centres and connected field sites.
We can help design and deploy Juniper SRX4200 for finance, healthcare, data centre, manufacturing and utility environments, aligned to traffic patterns, resilience targets and the operational workload your team has to support.
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Below you’ll find alternative models, suitable software and services that pair with this solution – helping you to avoid compatibility issues, reduce support overhead and deploy with confidence.
Not all deployments fit standard configurations. If you’re weighing up options or want a second opinion on your setup, our team is here to help with honest, straightforward advice backed by decades of vendor knowledge.
