Juniper SRX Series Firewalls

The Juniper SRX Series delivers high-performance security services for data centers, enterprises, and service
providers. With advanced firewalling, intrusion prevention (IPS), unified threat management (UTM), and secure SD-WAN
capabilities, SRX firewalls are a unified platform for protecting modern networks at scale.

BrightStar Systems offers a wide selection of used and refurbished Juniper SRX firewalls, fully tested and
backed by our
1-Year In-House Warranty. Whether you're upgrading edge security, deploying distributed branch protection,
or building resilient data center firewall clusters, the SRX Series provides flexible, scalable options at excellent value
when purchased refurbished.
Juniper SRX Series Overview
The SRX family spans from compact, branch-focused firewalls to high-throughput data center security gateways. Every model
integrates routing, switching, and security services into a single platform. The SRX product line is
widely used for core perimeter protection, next-generation firewalling, zero-trust access control, and WAN edge security.

Key benefits of Juniper SRX firewalls include:

Integrated NGFW, IPS, AppSecure, and secure SD-WAN features
Advanced routing capabilities built on Junos OS
High availability (HA) clustering options
Flexible throughput ranging from Mbps to multi-100Gbps
Encrypted VPN services (IPsec/SSL)
Scalable threat prevention with centralized management

Browse all Juniper hardware:
➜ All Juniper Network Equipment
Juniper SRX Series Models and Specifications
The SRX lineup is divided into multiple families based on throughput, deployment location, and feature scale. Below is
an overview of the most widely deployed SRX firewall categories.
SRX300 Series (Branch Firewalls)
Designed for distributed offices and smaller remote sites, the SRX300 Series delivers secure connectivity
with integrated switching and WAN features.

SRX300 / SRX320 / SRX340 / SRX345 / SRX380
Ideal for branch perimeter, VPN, and secure SD-WAN
Integrated PoE options (model-dependent)

SRX1500 (Campus & Mid-Size Edge)
The SRX1500 is a high-speed firewall designed for mid-size enterprise, distributed campuses, and WAN edge
security. It delivers up to multi-Gbps throughput with advanced threat prevention.

High-performance NGFW engine
Ideal for campus perimeter or data center edge
HA clustering and rich routing capabilities

SRX4100 & SRX4200 (Data Center Edge & Aggregation)
The SRX4100 and SRX4200 provide scalable NGFW performance for enterprise and
service provider networks.

High throughput (10–20+ Gbps depending on model)
Ideal for mid-range data center or WAN aggregation
Advanced security services including IPS and AppSecure

SRX4600 (High-Performance Data Center Firewall)
The SRX4600 is built for cloud-scale deployments that require consistent, high-capacity firewalling
with low latency.

Up to multi-10Gbps NGFW performance
High-end routing and segmentation capabilities
Suitable for data center core and large aggregation roles

SRX5000 Series (Carrier-Grade Security Gateways)
Designed for the most demanding environments, the SRX5400, SRX5600, and SRX5800 platforms provide
carrier-class firewalling and threat prevention.

Massive throughput and session scalability
Modular design with flexible I/O cards
Ideal for telco, service provider, and large enterprise data centers

Use Cases for the SRX Series
Juniper SRX firewalls are deployed across a wide range of security scenarios:

Branch perimeter security – Secure WAN connectivity with SD-WAN and VPN services
Campus edge protection – Unified threat management and high-availability clustering
Data center firewalling – Low-latency NGFW for private and public cloud
WAN edge / multi-site enterprises – Advanced routing + security in a single device
Service provider security – Scalable threat prevention and massive session capacity
Zero-trust segmentation – Application control, IPS, user-based policies

Juniper SRX Series Comparison Table

Model Family
Throughput Range
Form Factor
Ideal Deployment

SRX300 Series
100 Mbps – 1 Gbps
Desktop / Compact
Branch / Remote Office

SRX1500
Up to 10+ Gbps
1RU
Campus Edge / WAN Edge

SRX4100 / SRX4200
10 – 20+ Gbps
1RU
Data Center Edge, Aggregation

SRX4600
20 – 40+ Gbps
1RU
High-Performance Data Center

SRX5000 Series
50 – 1 Tbps (modular)
Chassis
Carrier / Service Provider

Accessories & Compatible Components
SRX deployments often require expansion modules, optics, and power components depending on the model and use case.

SFP / SFP+ / QSFP optics – 1G, 10G, 40G, and 100G modules for uplinks
Mini-PIM modules (for branch models)
Power supplies and fans
Redundant HA cables
Rack mounts and rails for data center deployments

Browse compatible Juniper optics and accessories:
➜ Juniper Optics & Cables
Related Juniper Series
Many networks pair SRX firewalls with Juniper EX and QFX switches for end-to-end secure architectures:

EX4300 Series – Popular campus access switches
QFX5100 Series – Data center leaf and ToR switches
QFX5200 Series – High-performance 25/100G fabrics
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Frequently Asked Questions (FAQ)
Q: Do Juniper SRX firewalls support EVPN-VXLAN?
A: High-end SRX models (e.g., SRX4100/4200/4600/5000) support EVPN-VXLAN bridging and routing features, making them suitable for
next-generation data center architectures.

Q: Which SRX model is best for branch offices?
A: The SRX300 Series (SRX300/320/340/345/380) is ideal for branches due to compact form factors, VPN support, optional PoE,
and integrated switching.

Q: Are refurbished SRX firewalls reliable?
A: Yes. All refurbished SRX hardware sold by BrightStar Systems undergoes full hardware testing and includes our 1-year
in-house warranty.

Q: Do you buy used Juniper SRX equipment?
A: Yes. BrightStar Systems purchases pre-owned SRX firewalls from enterprises and service providers and covers freight logistics
for qualifying shipments.
Request Pricing or Sell Your Juniper SRX Equipment
To get current pricing and availability on Juniper SRX hardware, or to sell your pre-owned equipment:

Request a quote
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