Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.
Certified Refurbished Juniper Networks SRX320 Services Gateway
The Certified Refurbished Juniper Networks SRX320 Services Gateway delivers 8x fixed Gigabit Ethernet ports, 4GB RAM, 8GB Flash storage, and up to 1.9 Gbps firewall throughput in a compact desktop form factor. Designed for small distributed enterprise branch offices, the SRX320 consolidates firewall, routing, switching, and WAN connectivity into a single appliance—because eliminating separate hardware reduces infrastructure cost and management complexity. Running Juniper's Junos OS with Zero Touch Provisioning (ZTP), remote sites can be configured automatically on first boot, which means no costly on-site IT visits for initial deployment.
Ideal For
- Enterprise branch offices — IT teams needing consolidated security, routing, and switching without maintaining separate appliances at each site
- Managed service providers (MSPs) — deploying ZTP-automated, policy-driven WAN connectivity across multiple client sites efficiently and at scale
- Hybrid WAN environments — organisations running MPLS alongside broadband internet or 4G/LTE with application-based traffic steering across links
- Security-focused network teams — those requiring next-generation firewall with IPS, application visibility, and IPsec VPN in a single verified refurbished appliance
Key Features & Benefits
- 1.9 Gbps Firewall Throughput: Sustains high-traffic branch workloads without becoming a bottleneck, therefore keeping business applications responsive during peak usage
- 336 Mbps IPsec VPN: Supports encrypted site-to-site and remote access tunnels at speeds suited to video conferencing and large file transfers across distributed offices
- 8x Gigabit Ethernet Ports: Provides flexible LAN and WAN port assignment, which means most small branch deployments require no additional switching hardware
- 2x Mini-PIM Expansion Slots: Accepts modular WAN interface cards for 4G/LTE or serial connectivity, so the platform scales as branch requirements evolve
- NGFW with IPS & Application Control: Intrusion prevention, application visibility, and content security are included natively—no separate security appliance required
- Dual-Box HA Clustering: Active/passive and active/active high-availability configurations provide stateful session failover for continuous business operation
- SD-WAN & Multi-WAN Load Balancing: Steers traffic intelligently across MPLS, broadband, and 4G/LTE using application-aware business policies to maximise uptime
Common Questions
Can the SRX320 handle concurrent VPN sessions at a branch office?
Yes. With 336 Mbps IPsec VPN throughput and Juniper Secure Connect (SSL VPN) support, the SRX320 manages simultaneous encrypted sessions for typical small branch teams. In our testing of SRX300-series units, VPN performance remains stable under mixed workloads of 20–30 concurrent users running video calls and cloud applications together.
Is a refurbished SRX320 still capable for 2026 branch deployments?
The SRX320 hardware platform is mature and thoroughly documented, making it entirely capable for current branch security and networking requirements. Our technicians verify every Ethernet port, expansion slot, and hardware component individually—so the professionally restored unit performs identically to a new one at a substantially lower cost.
What's included in the Junos OS licence on this unit?
Units supplied as SRX320-SYS-JE ship with Junos Software Enhanced, which includes firewall, NAT, IPsec, routing, MPLS, switching, and application security features. The SRX320-SYS-JB SKU includes Base Junos. Check the specific SKU listed in the product title to confirm which software package applies to your unit.
Technical Specifications
- Type: Small desktop Next-Generation Firewall / Services Gateway
- Fixed Ports: 8x 1GbE Gigabit Ethernet
- Expansion Slots: 2x Mini-PIM (modular WAN interfaces)
- RAM: 4GB
- Flash Storage: 8GB
- Firewall Throughput: Up to 1.9 Gbps
- IPsec VPN Throughput: Up to 336 Mbps
- Operating System: Junos OS (Juniper)
- Form Factor: Small desktop
- PoE+ Variant: SRX320-POE model features 6-port PoE+
Operating System: Junos OS
Pros: Junos OS is an enterprise-grade, unified network operating system with a strong security track record, comprehensive routing protocol support (including BGP, OSPF, IS-IS, and MPLS), and consistent behaviour across the entire Juniper platform—each unit is tested and verified against Junos functionality before dispatch. Cons: Junos has a steeper learning curve than consumer or SMB routing platforms; teams unfamiliar with Juniper's CLI and policy framework will require additional training time to manage the device effectively.
Cosmetic Condition Guide
Excellent (Grade A): Chassis shows minimal signs of previous use with only very light surface scuffing or minor abrasions on the casing; all ports, status indicators, and panel surfaces are clean and intact with no deep scratches, paint chips, or structural damage. Good (Grade B): Fully tested and functional but may display more visible surface wear including light scratches on the chassis, minor paint marks, or small scuffs consistent with standard data centre or office rack use.
Verified Reboot Refurb Quality Assurance
Every unit is verified refurbished by Reboot IT through our thorough testing process. We tested all features and functions—including every Gigabit Ethernet port via live network connection, flash storage integrity, RAM diagnostics, expansion slot verification, and full hardware component inspection—to ensure this device meets our high standards. As an expert in the industry since 2001, Reboot IT uses cutting-edge testing software to guarantee quality and reliability across every unit we sell.
Warranty & Support
This certified refurbished product is sold by Reboot IT and includes a 1-year warranty for your complete peace of mind.
Ready to Deploy?
This configuration suits IT teams and MSPs needing enterprise-grade branch security and routing without new-unit pricing, backed by Reboot IT's 1-year warranty and 20+ years of refurbishment expertise.
| Number Of Devices | None |
| Manufacturer Warranty | 3 Months |
| Item Height | None |
| Custom Bundle | No |
| Item Width | None |
| Condition | A |
| Model | SRX320-POE ENTERPRISE FIREWALL |
| Format | None |
| Minimum Hard Drive Space | None |
| Type | Firewall |
| Licence Category | None |
| For Operating Systems | None |
| Processor Model | none |
| Item Weight | none |
| Minimum Ram | None |
| Minimum Processor Speed | None |
| Item Length | None |
| Brand | Juniper |
| Bundle Description | None |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade
