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Juniper SRX Series Firewalls

Next-generation firewalls that put consistent, AI-driven security at every edge, from the branch closet to the data center core.

Overview

Juniper SRX Series firewalls are next-generation firewalls (NGFWs) that combine carrier-grade routing, switching, and threat prevention on a single Junos OS platform, sold through HPE as HPE Juniper Networking hardware. The lineup now spans the compact SRX400 Series for space-constrained branch and retail sites, the SRX1600 and SRX2300 for campus edge and small-to-midsize data centers, the SRX4300 and SRX4700 for data center core and service-provider deployments up to 1.4 Tbps, plus the vSRX virtual firewall and cSRX container firewall for cloud and Kubernetes workloads.

Every model runs the same Junos OS, enforces policy through Juniper Security Director Cloud, and shares Juniper's AI-Predictive Threat Prevention, so a policy written once applies identically whether it is enforced by a physical box in a federal data center, a vSRX instance in AWS GovCloud, or a cSRX pod behind a Kubernetes ingress. That consistency is the actual sales pitch: independent CyberRatings.org testing put SRX and vSRX exploit block rates at 99.7 to 99.9 percent with zero false positives, and Juniper is first to implement EVPN Type 5 and VXLAN natively in the firewall, letting an SRX act as a secure, fabric-aware leaf inside a spine-leaf data center instead of bolting security on as an afterthought.

For federal, SLED, healthcare, and enterprise buyers, the relevant question is rarely "which firewall" so much as "which SRX tier fits this site and this budget." HPE authorized partners like Uniqcli quote the exact SKU, whether that is a branch-office SRX400, a campus-edge SRX1600, or a chassis-cluster pair of SRX4700s for a regional data center, with TAA-compliant configurations available through GPC, SAP, FAR-based orders, and GSA eBuy vehicles.

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Juniper SRX Series Firewalls

A closer look

Juniper SRX Series Firewalls — view 1

Why Juniper SRX Series Firewalls

Federal, SLED, healthcare, and enterprise security teams are done buying point products that each need their own policy language, their own console, and their own audit trail. SRX gives every deployment tier, physical or virtual, one Junos OS core and one Security Director Cloud policy framework, so a rule written for a data center SRX4700 enforces identically on a branch SRX400 or a vSRX instance in the cloud. That matters directly for FedRAMP, HIPAA, and state-level accreditation reviews, where auditors ask for proof of consistent enforcement, not a spreadsheet reconciling five different vendor consoles. Built-in AI-Predictive Threat Prevention, Encrypted Traffic Insights, and a TPM 2.0-rooted device identity also mean threats hiding in encrypted flows and supply-chain tampering get caught before they become a breach-disclosure headache, and independent CyberRatings.org testing backs the exploit-block claims instead of leaving them as marketing copy.

One Junos OS core across every tier

From the compact SRX400 at a retail counter to a chassis-cluster SRX4700 pair in a data center, every SRX runs Junos OS and enforces policy through the same Security Director Cloud framework, so nothing gets reinvented per site.

Independently verified security effectiveness

CyberRatings.org testing recorded a 99.9 percent exploit block rate with zero false positives on SRX1600, SRX2300, and SRX4300 (2023 Enterprise Firewall test), and a 99.7 percent block rate on SRX4700 and vSRX (2024 Cloud Network Firewall report).

AI-Predictive Threat Prevention at line rate

Predicts and blocks malware from packet snippets before a full file transfers, eliminating patient-zero infections, and auto-generates protective signatures that stay active for the entire attack lifecycle instead of a 24-hour window.

Native EVPN-VXLAN fabric security

SRX firewalls were first to implement EVPN Type 5 and VXLAN natively, letting an SRX act as a secure, fabric-aware spine-leaf participant that inspects VXLAN-encapsulated traffic without decapsulating it first.

Built-in Zero Trust device identity

An embedded TPM 2.0 module and cryptographically signed DevID support RFC-compliant secure Zero Touch Provisioning, verifying hardware and software integrity before a device joins the network and cutting supply-chain risk.

New SRX400 Series brings AI governance to the edge

Announced at RSA Conference 2026 and shipping in Q2 2026, the compact SRX400 Series extends the hybrid mesh firewall to branch, retail, and clinic sites, adding prompt-level inspection to govern what employees send to external AI tools.

Physical, virtual, and container form factors

The vSRX Virtual Firewall now delivers up to 200 Gbps firewall throughput on VMware or KVM for cloud and hybrid data center workloads, while cSRX spins up and down in under a second for Kubernetes and microservices environments.

Connected Security Distributed Services Architecture

Multiple SRX platforms, physical, virtual, or containerized, can be interconnected and managed as a single logical firewall, scaling horizontally with automated failover instead of forcing a rip-and-replace upgrade.

What it does

Next-generation firewalling and IPS

Stateful zone-based firewall, intrusion prevention system, AppSecure application visibility and control, and role-based access control run together on Junos OS, with signatures updating in real time against a 99.7 to 99.9 percent verified exploit block rate.

Advanced Threat Prevention and Encrypted Traffic Insights

Cloud-delivered Juniper ATP adds malware sandboxing across iOS, Windows, Android, and CentOS, SecIntel threat intelligence feeds, and Encrypted Traffic Insights that flags malware hidden in SSL/TLS sessions without decrypting them.

Carrier-grade routing, NAT, and VPN

Full BGP, OSPF, IS-IS, and MPLS routing plus carrier-grade NAT44/64/66 and site-to-site, hub-and-spoke, and AutoVPN IPsec tunneling run natively, so one box replaces a separate router and VPN concentrator.

Secure SD-WAN and application-aware routing

Automated, secure SD-WAN steers traffic across MPLS, broadband, and cellular links with application-based policy routing and Application Quality of Experience (AppQoE), unifying WAN control with the firewall policy that protects it.

EVPN-VXLAN fabric-aware security

SRX enhances tunnel inspection for VXLAN-encapsulated traffic with Layer 4-7 security services and eases operations with EVPN Type 5 support through BGP, so segmentation policy travels with the workload inside the fabric.

AI-governed hybrid mesh policy (SRX400 Series)

New AI governance capabilities give visibility into which AI applications employees use, prompt-level inspection to filter keywords and block risky file uploads to external AI tools, and identity-based policy enforcement across physical, virtual, and containerized SRX.

Multi-form-factor consistency

vSRX (up to 200 Gbps on VMware/KVM) and cSRX bring the same NGFW services to AWS, Azure, Google Cloud, VMware, and Kubernetes environments that the physical SRX enforces on-premises, all managed from one Security Director Cloud console.

The Juniper SRX Series Firewalls lineup

SRX400 Series

Carrier-grade security in a space-constrained form factor for retail stores, clinics, and branch offices, with new prompt-level inspection for AI application traffic, announced at RSA Conference 2026.

Compact NGFW, hybrid mesh AI governance, available Q2 2026

SRX1600 Firewall

Enterprise campus edge, data center edge, and branch protection with built-in Zero Trust and EVPN-VXLAN, sized for SD-WAN large branch and secure hub deployments.

1U, 24 Gbps firewall throughput (1518B), 12 Gbps IMIX, 4x1/10GbE SFP+ plus 2x25GbE SFP28

SRX2300 Firewall

Reliable protection for small-to-midsize campus, data center, and regional headquarters networks with 5 million concurrent sessions and up to 36 Gbps IPsec VPN throughput.

1U, 39 Gbps firewall throughput (1518B), 28 Gbps IMIX, 8x1/10GbE SFP+ plus 2x40/100GbE QSFP28

SRX4300 Firewall

High-performance NGFW for enterprise campus, data center edge, and core, acting as a secure fabric-aware leaf in spine-leaf architectures with 99.9 percent CyberRatings exploit block rate.

1U, 98 Gbps firewall throughput (1518B), 70 Gbps IMIX, 6x40/100GbE QSFP28, 10 million concurrent sessions

SRX4700 Firewall

Highest firewall throughput per rack unit in the SRX line, built for service providers, cloud providers, and large enterprises running mobile core, CGNAT, and MEC network protection.

1U, up to 1.4 Tbps firewall throughput, 110 Gbps IPS, 90 Gbps IPsec VPN, dual 400GbE plus 16x50GbE and 10x100GbE

vSRX Virtual Firewall

The industry's fastest virtual firewall, deployable on AWS, Azure, Google Cloud, VMware ESXi/NSX, and KVM, extending the same NGFW policy set into public and private cloud.

Up to 200 Gbps firewall performance on VMware/KVM, 28 million concurrent sessions

cSRX Container Firewall

Spins up or down in under a second for Kubernetes and microservices environments, with AppSecure and content security packaged into a container instead of a VM or appliance.

Docker/CRI-O/Podman-compatible container image

SRX5400 / SRX5600 / SRX5800

The high-end chassis line for large enterprise, service provider, and mobile operator data centers that need modular SPC/IOC scaling beyond fixed 1U platforms.

Modular chassis, 5U to 16U, up to 3.36 Tbps firewall throughput (fully equipped SRX5800)

At a glance

Product family
HPE Juniper Networking SRX Series next-generation firewalls
Operating system
Junos OS, managed via Juniper Security Director Cloud
Current physical tiers
SRX400 (edge), SRX1600 / SRX2300 (campus/branch), SRX4300 / SRX4700 (data center core), SRX5400 / SRX5600 / SRX5800 (modular chassis)
Virtual and container form factors
vSRX (up to 200 Gbps, VMware/KVM), cSRX (Docker/CRI-O/Podman container)
SRX4300 performance
98 Gbps firewall (1518B) / 70 Gbps IMIX, 40 Gbps IPsec VPN (IMIX), 10 million concurrent sessions
SRX4700 performance
Up to 1.4 Tbps firewall throughput, 110 Gbps IPS, 90 Gbps IPsec VPN, 60 million concurrent sessions
Security effectiveness
99.9% exploit block rate (SRX1600/2300/4300, CyberRatings 2023 Enterprise Firewall test); 99.7% with zero false positives (SRX4700/vSRX, CyberRatings 2024 Cloud Network Firewall report)
Zero Trust hardware root
Embedded TPM 2.0, cryptographically signed DevID, RFC-compliant secure Zero Touch Provisioning (sZTP)
Fabric integration
EVPN-VXLAN (EVPN Type 5 route) natively across the SRX Series for fabric-aware, spine-leaf-ready segmentation

99.9% exploit block rate, zero false positives

SRX1600, SRX2300, and SRX4300 in CyberRatings' 2023 Enterprise Firewall test(vendor-published figure)

Up to 1.4 Tbps firewall throughput

SRX4700, the highest firewall throughput per rack unit in the SRX line(vendor-published figure)

99.7% exploit block rate, zero false positives

vSRX and SRX4700 in CyberRatings.org's 2024 Cloud Network Firewall report(vendor-published figure)

How to buy Juniper SRX Series Firewalls

SRX firewalls are sold as hardware-plus-license bundles: a chassis SKU paired with Junos Software Base or Enhanced, or a combined system SKU that ships both together. Uniqcli quotes the exact configuration, matching software tier to the throughput and application-security features your deployment actually needs.

Bundled system SKUs

Chassis, PSU configuration (AC or DC), and Junos Software Base or Enhanced ship as one orderable system SKU, avoiding the risk of ordering hardware without a matching license.

Advanced security subscription licensing

Application security services, IPS, antivirus, antispam, URL filtering, and AI-Predictive Threat Prevention are licensed as an advanced security subscription layered on top of the base Junos software.

TAA-compliant federal and public-sector procurement

As an authorized HPE and HPE Juniper Networking partner, Uniqcli sources TAA-compliant SRX configurations through GPC, SAP, FAR-based orders, and GSA eBuy contract vehicles, and can process GPC card orders for smaller acquisitions.

HPEFS financing

HPE Financial Services leasing is available on eligible SRX purchases, useful for spreading the cost of a chassis-cluster pair or a multi-site branch refresh across a fixed monthly payment.

Chassis cluster and multi-site refresh

Replacing aging SRX4100/SRX4200 or third-party firewalls with current-generation SRX1600 through SRX4700 hardware qualifies for HPE trade-in and refresh programs that offset the cost of the upgrade.

Where it fits

Protecting enterprise campus, data center edge, and core networks with a single NGFW platform sized from SRX1600 through SRX4700
Extending carrier-grade security to retail stores, clinics, and branch offices with the compact new SRX400 Series
Governing AI application usage at the network edge with prompt-level inspection that filters keywords and blocks risky file uploads without cutting off approved tools
Running mobile core, CGNAT, and multi-access edge computing (MEC) security for service providers and cloud providers on the SRX4700
Extending consistent firewall policy into AWS, Azure, Google Cloud, and VMware environments with the vSRX Virtual Firewall
Embedding advanced security services into Kubernetes and microservices deployments with the cSRX Container Firewall
Centralizing multi-site policy enforcement and audit reporting through Juniper Security Director Cloud for FedRAMP, HIPAA, and state accreditation reviews

Frequently asked

What is the current SRX lineup, and how is it different from the SRX4100?

The SRX4100 is still shipping, now paired with the SRX4200, but Juniper's current-generation data center and campus tier is SRX1600, SRX2300, SRX4300, and SRX4700, delivering up to 98 Gbps (SRX4300) and 1.4 Tbps (SRX4700) firewall throughput. A new compact SRX400 Series for branch and edge sites became available in Q2 2026. Tell us your site count and throughput needs and we will map you to the right current SKU.

Can Uniqcli supply SRX firewalls for federal and public-sector contracts?

Yes. As an authorized HPE and HPE Juniper Networking partner, we source TAA-compliant SRX configurations and process orders through vehicles including GPC, SAP, FAR-based orders, and GSA eBuy, plus GPC card purchases for smaller acquisitions. Tell us your contract vehicle and we will confirm the right SKUs and pathway.

How do I choose between SRX1600, SRX2300, SRX4300, and SRX4700?

Sizing comes down to throughput and interface density. The SRX1600 delivers 24 Gbps firewall throughput for campus edge and branch sites, the SRX2300 scales to 39 Gbps for small-to-midsize data centers, the SRX4300 reaches 98 Gbps for enterprise data center core, and the SRX4700 tops out at 1.4 Tbps for service providers and large enterprises. Share your expected traffic and interface counts and we will recommend a configuration.

What is the SRX400 Series, and is it available now?

The SRX400 Series is a new compact next-generation firewall announced at RSA Conference 2026, built to bring carrier-grade security to space-constrained sites like retail stores, clinics, and branch offices. It launched with new AI governance features, including prompt-level inspection of traffic to external AI tools, and became available in Q2 2026.

How does SRX detect threats hidden in encrypted traffic?

Encrypted Traffic Insights analyzes SSL/TLS sessions for malware signatures without decrypting the traffic, so privacy and security are not a tradeoff. It works alongside Juniper Advanced Threat Prevention's cloud-based sandboxing and SecIntel threat intelligence feeds, and AI-Predictive Threat Prevention, which identifies threats from packet snippets at line rate before a full malicious file transfers.

Do vSRX and cSRX offer the same security features as physical SRX hardware?

Yes. vSRX and cSRX run the same Junos OS-based NGFW services, including IPS, AppSecure, and advanced threat prevention, as physical SRX appliances, and all three form factors are managed through the same Security Director Cloud policy framework. vSRX now delivers up to 200 Gbps firewall performance on VMware or KVM, making it viable for demanding cloud and hybrid data center workloads, not just lightweight edge cases.

How are SRX firewalls managed across many sites?

SRX firewalls, physical, virtual, and containerized, are managed centrally through Juniper Security Director Cloud, which uses a single policy framework so a rule written once applies consistently everywhere, with zero-touch provisioning, unbroken visibility, and centralized logging for audit and compliance reporting.

What support, warranty, and financing options are available?

SRX deployments can be paired with Juniper and HPE support tiers, and HPE Financial Services (HPEFS) leasing is available on eligible purchases to spread the cost of a refresh or chassis-cluster deployment. Contact us at [email protected] to scope support levels, warranty terms, and procurement timelines for your environment.

Where do I get a quote for SRX firewalls?

Request a quote directly through Uniqcli's /quote page with your site count, throughput requirements, and preferred contract vehicle, or build a full configuration in the /bom catalog builder if you are bundling SRX with switching, routing, or storage in the same order.

Works with

SRX firewalls do not operate in isolation. They enforce policy inside the same Junos OS ecosystem as Juniper's routing, switching, and AI-native networking portfolio, and they hand off management to the cloud-delivered Security Director Cloud that also governs SASE and access policy.

Build your HPE bill of materials.

Send us the requirement, the project, or an existing quote to beat. We come back with a validated, TAA-compliant HPE configuration and a real price, often below list.

connect [at] getuniqcli.com · Chicago, IL