juniper SRX Series SRX4200
The Juniper SRX4200 is a 1U datacenter next-generation firewall engineered for high-throughput enterprise cores and service provider edges. Equipped with eight fixed 10GbE SFP+ ports, the SRX4200 delivers up to 80 Gbps of stateful firewall throughput, 20 Gbps of IPsec VPN throughput, and 20 Gbps of NGFW protection. Sharing the compact 1U architecture of the SRX4100 with upgraded multi-core security processors, the SRX4200 provides immense threat prevention capacity in a high-density, energy-efficient enclosure.
Specifications
| Brand | juniper |
|---|---|
| Family | SRX Series |
| Form factor | 1U rack |
| Released | Jun 2016 |
| Ports | 8x fixed 10GbE SFP/SFP+ optical ports |
| Firewall throughput | 80 Gbps stateful firewall throughput |
| Vpn throughput | 20 Gbps IPsec VPN throughput |
| Ngfw throughput | 20 Gbps application inspection and IPS throughput |
| Concurrent sessions | Supports up to 10 million concurrent firewall sessions |
Generations
- Previous generation: juniper SRX Series SRX4100
- Next generation: juniper SRX Series SRX4600
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the juniper SRX Series SRX4200.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
FAQ
What is the primary difference between the SRX4100 and SRX4200?
The SRX4200 delivers double the processing throughput (80 Gbps firewall vs 40 Gbps) and supports higher concurrent session counts.
Does the SRX4200 support chassis clustering for high availability?
Yes, dual SRX4200 appliances support active/active and active/passive clustering with sub-second failover.
Buying or selling SRX4200?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper SRX4200 Product Overview, checked 2026-10-27
- Juniper SRX4200 Datasheet, checked 2026-10-27