Juniper SRX4120, SRX4200, SRX4300 & SRX4600 Firewall
According to Juniper, the SRX4120, SRX4200, SRX4300 and SRX4600 are 1 U next-generation firewalls for data centers, enterprise campuses and regional headquarters. Depending on the model, they are suited for the campus edge, data center edge and data center core, as an IPsec VPN and SD-WAN hub and as a secure VPN router for distributed enterprises.
According to Juniper, firewall throughput ranges from 39 Gbps (SRX4120) to 400 Gbps (SRX4600) and IPsec VPN throughput from 35 Gbps to 94 Gbps. The models provide SFP+, SFP28 and QSFP28 ports up to 100GbE, redundant power supplies and fans and dedicated high availability ports. They are managed via Juniper Security Director Cloud or Juniper Mist WAN Assurance.
We are happy to advise you on project and volume enquiries. On request, DEVACON handles planning, configuration and commissioning.
Key facts from the Juniper datasheet
- Form factor: 1 U, all models
- Redundant power supplies (1+1), AC or DC
- Dedicated HA ports and separate management port
- SRX4120 and SRX4300: multigigabit RJ45 up to 10GbE, SFP+, SFP28 and QSFP28 up to 100GbE
- SRX4600: 8 × 1/10GbE SFP+ and 4 × 40/100GbE QSFP28, up to 24 × 10GbE via breakout, 256 GB memory
- Concurrent sessions: SRX4200 and SRX4300 up to 10 million, SRX4600 up to 60 million
- IPsec VPN tunnels: SRX4300 up to 4,000, SRX4200 up to 4,075, SRX4600 up to 7,500
- EVPN-VXLAN, management via Security Director Cloud or Mist WAN Assurance
Areas of use
- Data center edge and data center core
- Campus edge and regional headquarters
- IPsec VPN and SD-WAN hub
- Secure VPN router for distributed enterprises (SRX4120)
Models and key specifications
| Model | Ports | Firewall (1518 B / IMIX) | IPsec VPN (1400 B / IMIX) | Power supplies |
|---|---|---|---|---|
| SRX4120 | 8 × 10GbE RJ45, 8 × SFP+, 4 × SFP28, 2 × QSFP28 | 39 / 28 Gbps | 36 / 18 Gbps | AC or DC, redundant |
| SRX4200 | 8 × 1/10GbE SFP+ | 80 / 50 Gbps | 35 / 26 Gbps | 2 × 650 W, AC or DC |
| SRX4300 | 8 × 10GbE RJ45, 8 × SFP+, 4 × SFP28, 6 × QSFP28 | 98 / 70 Gbps | 94 / 40 Gbps | 2 × 850 W, AC or DC |
| SRX4600 | 8 × 1/10GbE SFP+, 4 × 40/100GbE QSFP28 | 400 / 400 Gbps | 71 / 44 Gbps | 2 × 1600 W |
Throughput figures per datasheet measured with UDP packets per RFC 2544. NGFW throughput with firewall, application security and IPS enabled (TPS method: average HTTP sessions). SRX4120: values from the Juniper hardware documentation (datasheet not retrievable). SRX4200 per the SRX4100 and SRX4200 datasheet; the SRX4100 has reached end of sale (last order 15 April 2026) and is not listed.
Source of information: juniper.net (Dokumentation SRX4120) ·hpe.com (PDF SRX4100/SRX4200) ·juniper.net (PDF SRX4300) ·juniper.net (PDF SRX4600) ·Juniper EOL-Übersicht SRX
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