Juniper SRX1600 vs SRX380: Sizing the Right SRX Firewall for Edge and Branch

The Juniper SRX1600 and SRX380 are both 1U Junos-based firewalls, but they target different points in a distributed enterprise. The SRX1600 is an enterprise and data-center edge NGFW with 25GbE-class interfaces and EVPN-VXLAN, while the SRX380 is a branch and SD-WAN gateway that folds security, routing, and switching into one PoE-enabled box. This comparison sizes each by throughput, ports, and use case so you deploy the right model per site.

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The short answer

For a campus core, regional hub, internet edge, or data-center perimeter that needs high NGFW and IPS throughput plus 25GbE uplinks, the SRX1600 is the clear pick. For branch offices, retail sites, and remote locations that need an all-in-one SD-WAN gateway with PoE+ access ports, the SRX380 is the more cost-effective, purpose-built choice. Most distributed enterprises buy both: SRX1600s at the hubs and SRX380s at the spokes, managed centrally through Juniper Security Director Cloud or Mist.

Juniper SRX1600 vs Juniper SRX380, head to head

Juniper SRX1600

Juniper SRX380

Performance

~24 Gbps firewall/RU class, ~7.5 Gbps NGFW, 8 Gbps IPSadvantage

Up to 20 Gbps stateful firewall but ~2 Gbps IPS

Scalability

25GbE/SFP28 uplinks, EVPN-VXLAN, expansion slots for hub and edge scaleadvantage

Fixed 16x1GbE PoE+ plus 4x10GbE, up to 4 Mini-PIMs for branch flexibility

Management & AIOps

Junos with Security Director Cloud and Mist management

Security

Full NGFW, IPS, ATP, app security, wire-speed MACsec, zero trustadvantage

Full NGFW, IPS, ATP, AES-256 MACsec, content security for the branch

Ecosystem & lock-in

Single Junos OS across SRX, EX, QFX, MX for consistent policy

Same Junos OS and SD-WAN stack as the rest of the SRX family

Support

Juniper Care and HPE-backed enterprise support options

Price / value

Higher cost, justified at high-traffic edge and hub sites

Lower cost per site, strong value for branch and SD-WAN rolloutsadvantage

Federal / TAA

Available through TAA-compliant and federal channels

Specifications side by side

Role: Enterprise / data-center edge firewall; Branch / SD-WAN enterprise firewall
Form factor: 1U rack; 1U rack
Firewall throughput (max): Up to ~24 Gbps; Up to 20 Gbps
NGFW throughput (IMIX): ~7.5 Gbps; Branch-class (lower)
IPS throughput: 8 Gbps; ~2 Gbps
IPsec VPN throughput: ~5 Gbps IMIX / up to 18 Gbps (1400B); ~4.4 Gbps
Onboard ports: 16x RJ-45 plus SFP+/SFP28 (incl. 2x 25GbE); 16x 1GbE PoE+ plus 4x 10GbE SFP+
PoE: No onboard PoE; PoE+ on the 1GbE access ports
Expansion: Expansion slots (incl. SFP+ slots); Up to 4 Mini-PIMs
Concurrent sessions: Higher-scale enterprise session table; ~380,000
Encryption / extras: Wire-speed MACsec, EVPN-VXLAN, redundant PSUs; AES-256 MACsec, 100GB onboard SSD, dual PSUs

Where Juniper SRX1600 wins

Higher NGFW (~7.5 Gbps) and IPS (8 Gbps) throughput for busy edge and hub traffic
25GbE/SFP28 uplinks and EVPN-VXLAN for data-center and campus core integration
Wire-speed MACsec and full advanced threat protection
Headroom for internet edge, peering, and high-session-count environments
Scales as the aggregation point for many branch SRX380 spokes

Where Juniper SRX380 wins

Purpose-built branch and SD-WAN gateway in a compact 1U box
Built-in 16x1GbE PoE+ powers APs, phones, and cameras without a separate switch
Up to four Mini-PIMs add LTE, T1/E1, or fiber WAN options
Lower cost per site for large multi-branch rollouts
Consolidates security, routing, and switching for lean branch IT

Which one should you buy?

Regional hub or campus core aggregating dozens of branch tunnels

Pick Juniper SRX1600. Its high NGFW/IPS throughput and 25GbE uplinks handle aggregated branch traffic and east-west inspection that would saturate a branch box.

Retail store or small branch needing one device for security, routing, and PoE

Pick Juniper SRX380. Onboard PoE+ ports power APs and cameras while built-in SD-WAN and NGFW cover the site, avoiding a separate switch and router.

Data-center perimeter or internet edge with high-bandwidth inspection

Pick Juniper SRX1600. NGFW and IPS at near-line-rate plus EVPN-VXLAN make it suited to north-south inspection at the edge of the fabric.

Distributed enterprise standardizing branch connectivity with diverse WAN links

Pick Juniper SRX380. Mini-PIM slots let each site mix LTE, fiber, and copper WAN while keeping a uniform Junos SD-WAN policy across the fleet.

Mixed hub-and-spoke architecture managed from one console

Pick Juniper SRX1600. Run SRX1600s at the hubs and SRX380s at the spokes, all governed by the same Junos policy in Security Director Cloud or Mist.

Frequently asked

What is the main difference between the Juniper SRX1600 and SRX380?

The SRX1600 is an enterprise and data-center edge firewall with much higher NGFW, IPS, and VPN throughput plus 25GbE uplinks and EVPN-VXLAN. The SRX380 is a branch and SD-WAN gateway with onboard PoE+ access ports and Mini-PIM WAN flexibility. The SRX1600 sits at hubs and edges; the SRX380 sits at branches.

How much faster is the SRX1600 than the SRX380 for NGFW workloads?

With full services enabled, the SRX1600 delivers about 7.5 Gbps NGFW and 8 Gbps IPS, versus roughly 2 Gbps IPS on the branch-class SRX380. If you turn on threat prevention at a high-traffic site, the SRX1600 has far more inspected-throughput headroom, which is the core reason it lands at edge and hub locations.

Does the SRX380 have PoE and does the SRX1600?

The SRX380 includes 16 onboard 1GbE PoE+ ports, so it can power access points, IP phones, and cameras directly at a branch. The SRX1600 has no onboard PoE; it focuses on high-speed SFP+/SFP28 uplinks for edge and data-center connectivity. For branches that want one box to power endpoints, the SRX380 is the fit.

Which SRX is better for SD-WAN at distributed branch sites?

The SRX380 is purpose-built for branch SD-WAN: it consolidates routing, switching, and security, and its Mini-PIM slots let each site use LTE, fiber, or copper WAN. The SRX1600 typically anchors the hub side of the SD-WAN, terminating tunnels from many SRX380 branches.

Can the SRX1600 and SRX380 be managed together?

Yes. Both run Junos and are managed centrally through Juniper Security Director Cloud and the Mist platform, so you can apply consistent zero-trust and threat-prevention policy across a hub-and-spoke deployment from a single console regardless of which model is at each site.

Are the Juniper SRX1600 and SRX380 available on federal and TAA-compliant contracts?

Both are available through TAA-compliant and federal procurement channels. As an authorized HPE Juniper Networking reseller, we can source the SRX1600, SRX380, support, and licensing through GPC, SAP, FAR, and other cooperative vehicles for federal, SLED, and healthcare buyers.

How many sites can one SRX1600 aggregate from SRX380 branches?

That depends on per-branch tunnel bandwidth and inspection settings, but the SRX1600's high throughput and large session capacity let it terminate VPN tunnels from many SRX380 spokes at a regional hub. We can model your tunnel count, IMIX traffic, and IPS requirements to right-size the hub.

Should I standardize on one model across all sites?

Usually no. Mixing models is the cost-effective pattern: SRX1600s where bandwidth and inspection demand it, SRX380s at branches where PoE and SD-WAN matter more than raw throughput. Because both share Junos and the same management plane, a mixed fleet stays operationally simple.

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