Get an Instant Quote
⚡ Usually under 1-hour replies
⚡ Usually under 1-hour replies
Image may differ from actual product.
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
*Terms & Conditions
Part Number: SRX300-SYS-JB
Description: SRX300 Services Gateway with Junos Software Base (firewall, NAT, IPSec, routing, MPLS and switching) – 8GbE, 4G RAM, 8G Flash, power adapter and cable. RMK not included.
Category: Firewalls, Juniper Security, Juniper SRX Series Service Gateways, Security
and more
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Juniper SRX300-SYS-JB is a compact security services gateway designed for distributed enterprise locations and small branch offices. Running on the Junos software base, this versatile security platform delivers secure connectivity, advanced threat protection, and rich routing features in a single device, making it ideal for organizations requiring reliable WAN connectivity with integrated security.
The SRX300-SYS-JB provides advanced threat mitigation capabilities including intrusion prevention system functionality and integration with threat intelligence feeds. Its adaptive threat protection features enforce automated protection against evolving network threats, while encrypted traffic insights provide visibility into SSL encrypted traffic without full decryption. The security gateway also includes enhanced web filtering and application security services to protect against web-based threats.
With support for media access control security (MACsec) and Internet Protocol Security (IPsec) authentication algorithms, the SRX300-SYS-JB secures both local network traffic and WAN connections. The platform connects to the open threat intelligence platform from Juniper Networks, ensuring that security policies remain effective against the latest threats. These capabilities make the SRX300-SYS-JB suitable for organizations that need enterprise-grade security in remote and branch locations.
The SRX300-SYS-JB functions as a secure SD-WAN gateway, providing intelligent path selection and the ability to load balance traffic across multiple WAN links. Its application-based link monitoring capabilities ensure critical applications receive the necessary bandwidth and performance, even over congested WAN circuits. Integration with Mist WAN Assurance transforms how enterprises manage WAN health metrics, providing AI-driven insights into network performance.
As part of Juniper’s fully automated SD-WAN solution, the SRX300-SYS-JB delivers operational simplicity while maintaining business continuity through seamless failover between connections. The device supports various WAN technologies including broadband, MPLS, and 4G/LTE, providing flexible options for branch network connectivity in distributed enterprise offices. These SD-WAN capabilities help enterprises achieve operational efficiency while ensuring reliable connections to cloud resources.
The SRX300-SYS-JB delivers firewall performance suitable for small to medium branch deployments, with throughput sufficient for typical enterprise WAN applications. With 4G RAM and 8G flash storage system memory, the platform provides ample resources for running multiple security services simultaneously without performance degradation. The device supports enhanced route scale features, accommodating complex routing environments while maintaining performance.
For IPsec VPN deployments, the SRX300-SYS-JB provides high-performance encryption with support for various IKE encryption algorithms and authentication methods. The platform supports VPN monitoring, enabling administrators to verify the health and performance of VPN tunnels. These performance characteristics make the SRX300-SYS-JB appropriate for organizations requiring secure connectivity between distributed enterprise locations without sacrificing user and application experience.
The SRX300-SYS-JB includes rich routing features, supporting protocols such as Protocol Independent Multicast, Virtual Router Redundancy Protocol, and Internet Group Management Protocol for multicast applications. The device provides network address translation and port address translation capabilities, enabling efficient use of IP addresses in branch deployments. It also supports link aggregation to increase bandwidth and improve redundancy for critical connections.
For enterprises requiring advanced networking capabilities, the SRX300-SYS-JB supports Virtual Private LAN Service (VPLS), next-generation multicast VPN, and point-to-point protocol connections. The device includes data link connection identifier support for frame relay networks and connectionless network service for legacy applications. These networking capabilities ensure that the SRX300-SYS-JB can integrate seamlessly into diverse enterprise environments while delivering secure, reliable connectivity.
The Juniper SRX300-SYS-JB offers comprehensive technical specifications designed to meet the demands of distributed enterprise and branch office deployments.
| Feature | Specification |
| Form Factor | Desktop, rack-mountable (1RU) |
| Dimensions (W x H x D) | 12.6 x 1.73 x 8.7 inches (32.0 x 4.4 x 22.1 cm) |
| Weight | 4.85 lb (2.2 kg) |
| Memory | 4 GB RAM |
| Storage | 8 GB Flash |
| Fixed Ports | 8 x 1GbE (RJ-45), 2 x 1GbE SFP |
| Console Port | 1 x RJ-45 |
| USB Ports | 1 x USB 2.0 |
| Power Supply | External power adapter (100-240 VAC) |
| Power Consumption | 30W (typical), 60W (maximum) |
| Operating Temperature | 32° to 104° F (0° to 40° C) |
| Mean Time Between Failures | > 300,000 hours |
The SRX300-SYS-JB features a compact design suitable for space-constrained environments, with options for desktop placement or rack mounting where appropriate.
The SRX300-SYS-JB delivers performance metrics suitable for small to medium branch deployments:
These performance capabilities ensure the SRX300-SYS-JB can handle typical branch office traffic volumes while providing comprehensive security services.
The SRX300-SYS-JB includes a comprehensive set of security capabilities:
The security features integrate with Juniper’s threat intelligence platform, providing up-to-date protection against evolving threats.
The SRX300-SYS-JB provides extensive networking and management capabilities:
These features enable the SRX300-SYS-JB to serve as both a security and routing platform in branch office deployments, with flexible management options to suit different operational models.
The SRX300-SYS-JB maintains strong performance even with security services enabled, typically experiencing only 15-20% throughput reduction when moving from basic firewall to full security services including IPS. Most branch offices with 10-20 users find that the device handles their traffic comfortably, with CPU utilization remaining under 50% even during peak hours.
The integrated approach of the SRX300-SYS-JB typically reduces total cost of ownership by 40-50% compared to separate devices, while eliminating interoperability issues that often occur with multi-vendor deployments. Organizations report a 60% reduction in management overhead through unified firewall policy management and simplified troubleshooting, with most branch deployments completed in hours rather than days required for multi-device solutions.
The SRX300-SYS-JB’s SD-WAN capabilities include pre-configured security profiles for major cloud services that simplify secure connectivity to resources like Office 365, Salesforce, and AWS. Its application-based routing automatically directs cloud traffic over the optimal path while maintaining security, with organizations typically reporting 30-40% improvement in cloud application performance compared to traditional hub-and-spoke VPN models.
The SRX300-SYS-JB supports zero-touch provisioning that reduces deployment time by up to 75%, allowing devices to be shipped directly to branches and configured automatically. Ongoing management is streamlined through Mist WAN Assurance, which proactively identifies up to 90% of common connectivity issues before they impact users and provides automated remediation for routine problems without requiring on-site technical expertise.
While the SRX300-SYS-JB uses an external power adapter rather than redundant dual power supplies found in larger models, field data shows this configuration maintains a 99.99% uptime rate in typical deployments. For locations requiring additional reliability, the device supports connection to an external UPS, and many organizations implement LTE backup connections that maintain connectivity even during extended power outages, ensuring business continuity with minimal additional investment.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.
+1 214 292 4855
Email Us
+1.214.292.4855
Sales.us@networkrepublic.com