Juniper EX Series Switches

Juniper EX Series switches deliver reliable, feature-rich Layer 2/Layer 3 switching for campus, branch, and data center access environments. BrightStar Systems supplies fully tested, used and refurbished EX Series switches so you can standardize on Juniper access platforms while controlling cost, shortening lead times, and reducing project risk.

We stock popular EX models across multiple generations—including EX2300, EX3400, EX4300, EX4400, EX4550, EX4600, and EX4650—and back every unit with our 1-Year In-House Warranty. If you are planning a refresh or expansion, you can buy used Juniper switches for campus, branch, or data center access while saving significantly versus new hardware.
Juniper EX Series Overview
The EX Series was designed to give enterprises, service providers, and data centers a consistent access and aggregation platform built on Junos OS. With options for copper and fiber access, PoE/PoE+, multigigabit support on newer models, and Virtual Chassis or EVPN-VXLAN designs, EX switches can support everything from small branch closets to large campus core/aggregation roles.

Key capabilities across the Juniper EX family include:

1GbE, 2.5GbE, and 10GbE access options with SFP/SFP+ uplinks depending on model.
PoE/PoE+ and high-power PoE for phones, wireless APs, cameras, and IoT endpoints.
Virtual Chassis and Virtual Chassis Fabric on select models for simplified stacking and management.
Advanced Layer 2/Layer 3 features including OSPF, BGP, VRRP, and IPv6 support.
Consistent Junos OS across EX, QFX, and MX platforms for unified operations and automation.
Compact 1RU and dense multi-slot chassis options depending on your campus or data center design.

Many customers pair Juniper EX access switches with QFX Series data center switches and MX Series routers to build end-to-end Juniper architectures from access to core.
Explore Juniper EX Series Sub-Families
The EX portfolio spans multiple generations and performance tiers. BrightStar Systems can help you select the right EX platform based on port density, PoE needs, uplink speeds, and lifecycle considerations.

EX2300 Series – Compact access switches for branch offices and small campus deployments.
EX3400 Series – Versatile 1GbE access with Virtual Chassis support for wiring closets and aggregation.
EX4300 Series – Stackable 1GbE access with 10/40GbE uplinks, ideal for high-density campus closets.
EX4400 Series – Next-generation access with multigigabit, advanced EVPN-VXLAN capabilities, and Mist integration.
EX4550 Series – 10GbE-focused switching suitable for aggregation or smaller data center roles.
EX4600 Series – Higher-performance 10GbE/40GbE campus and data center aggregation.
EX4650 Series – 25/100GbE-ready switching for modern aggregation and distribution designs.

If you prefer to standardize on specific EX families across multiple sites, our team can help you build consistent bills of materials and sourcing plans using used Juniper switches that have been fully tested and lab-verified.
Popular Juniper EX Series Models
Across the EX families, certain models remain especially popular for campus, branch, and data center access roles. BrightStar Systems frequently stocks:

EX2300-24P / EX2300-48P – PoE access switches for small and midsize wiring closets.
EX3400-24P / EX3400-48P – Versatile 1GbE PoE switches with Virtual Chassis support.
EX4300-24P / EX4300-48P – High-density 1GbE access with 10GbE/40GbE uplinks and stacking.
EX4400-24P / EX4400-48P – Newer-generation multigigabit access switches with advanced EVPN-VXLAN support.
EX4550-32F – 10GbE SFP+ focused switch for fiber-rich access or aggregation roles.
EX4600 – 10GbE/40GbE aggregation and smaller data center core roles.
EX4650-48Y / EX4650-48T – 25GbE-ready distribution and aggregation switching for modern campus and data center designs.

Inventory changes over time, so the best way to confirm availability and pricing is to request a Juniper EX quote or call 916-248-4688 to speak with a member of our team.
EX Series Technical Features & Architecture
Although each EX family has its own capabilities, there are common design principles across the portfolio that make Juniper EX Series switches attractive in production environments.

Layer 2/Layer 3 feature parity with Juniper routing platforms: EX switches support VLANs, QinQ, LAGs, OSPF, BGP, VRRP, and other advanced features depending on software licenses and models.
Virtual Chassis technology: Many EX platforms support Virtual Chassis, allowing multiple switches to operate as a single logical device for simplified management and resiliency.
Consistent Junos OS: The same Junos operating system runs across EX, QFX, and MX, enabling shared automation, configuration standards, and troubleshooting workflows.
Flexible uplink options: EX switches support a range of uplink speeds via SFP, SFP+, QSFP, and on newer models 25GbE-ready interfaces.
Campus and data center readiness: While EX is often used for campus access, certain models (such as EX4550, EX4600, and EX4650) are well suited for aggregation or smaller data center core roles.

If your network leverages EVPN-VXLAN or integrates with Juniper QFX fabrics, we can help you choose EX models that align with your control plane and automation strategy.
Compatible Optics, Modules & Accessories
EX Series deployments often depend on a mix of optics, DACs, and uplink modules. BrightStar Systems can bundle optics and accessories with your EX hardware so your switches arrive ready to install.

Juniper SFP/SFP+/QSFP Transceivers & Cables for 1/10/40GbE access and uplinks.
DAC and AOC cables for short-reach, high-bandwidth connections within racks or rows.
Uplink and stacking modules for EX-based Virtual Chassis or higher-speed uplink needs.
AC and DC power supplies, fan trays, and airflow-specific SKUs for campus and data center racks.

We can also advise on optics compatibility between EX switches and other Juniper platforms such as QFX5100 or QFX5120, as well as interoperability with mixed-vendor environments that include Arista 7050X or Arista 7060X switches.
Common Juniper EX Series Use Cases
Because the EX portfolio spans multiple performance tiers and generations, BrightStar Systems can map specific models to your network roles instead of treating all EX hardware the same.

Campus access switching: EX2300, EX3400, EX4300, and EX4400 provide 1GbE access with PoE and stacking for user, VoIP, and wireless connectivity.
Distribution and aggregation: EX4600 and EX4650 aggregate multiple access closets or data center racks and provide higher-speed uplinks.
Smaller data center roles: EX4550, EX4600, and EX4650 can serve as ToR or aggregation switches in environments that don’t require full QFX feature sets.
Branch and remote sites: Compact EX2300 and EX3400 models fit nicely into smaller locations and remote closets.
Lab and test environments: Previous-generation EX platforms can be ideal for labs where cost control is critical but Junos parity is still important.

If you are decommissioning existing EX hardware as part of a refresh, we can also help you sell your Juniper EX equipment through our buyback program and apply recovered value toward replacement hardware.
Why Buy Used or Refurbished EX Series Switches?
Used and refurbished EX switches allow you to standardize on proven Juniper platforms without overspending on new hardware for every site or lab. When sourced from a reputable reseller, used EX hardware can be just as reliable in production as new units.

Significant cost savings: Many customers realize 40–80% savings versus new EX pricing while still meeting performance and feature requirements.
Shorter lead times: Used and refurbished inventory often ships faster than new gear backed up by supply chain constraints.
Stable, proven platforms: Many EX models are widely deployed and well understood by operations teams, which helps reduce risk.
Environmental benefits: Extending the life of existing EX hardware reduces e-waste and supports more sustainable IT practices.
Backed by warranty: All EX switches from BrightStar Systems include our 1-Year In-House Warranty.

Testing, Warranty & Engineering Expertise
BrightStar Systems is more than a broker—we operate as an engineering-driven partner for Juniper and Arista networks.

In-house testing lab: Every EX switch is powered on, checked for basic diagnostics, and verified for port functionality, optics, fans, and power supplies.
Configuration reset and cleaning: We reset units to factory defaults, remove prior configurations, and clean chassis and interfaces prior to shipment.
1-Year In-House Warranty: Our warranty covers hardware defects and gives you confidence when deploying used EX switches in production.
Real-world engineering experience: Our team has hands-on experience with EX, QFX, and MX deployments including campus, EVPN-VXLAN, and mixed-vendor designs.

If you need to build or refresh a Juniper environment, we can help you compare EX options versus QFX data center switches and SRX firewalls, or evaluate multi-vendor strategies that include Arista 7000 Series switches.
Buyback & Trade-In for Juniper EX Equipment
If you are retiring or consolidating Juniper environments, BrightStar Systems can also help you recover value from surplus EX hardware. Our Juniper equipment buyback program supports everything from small EX closet cleanups to larger data center or campus refresh projects.

Send us an inventory list of EX switches and related Juniper gear.
Receive a buyback offer based on model, condition, and current demand.
Coordinate shipping or pickup depending on project size.
Apply recovered value toward used Juniper switches or other replacement hardware.

For complex data center decommissioning or multi-site projects, we can also align with the planning in our data center decommissioning checklist and related services.
FAQ – Juniper EX Series Switches
Q: Which Juniper EX Series switches do you typically stock?
A: Inventory changes over time, but we frequently carry EX2300, EX3400, EX4300, EX4400, EX4550, EX4600, EX4650, and related EX models that are widely deployed in campus, branch, and data center access roles.

Q: Are your EX Series switches used or refurbished, and do they include a warranty?
A: BrightStar Systems specializes in used and refurbished Juniper hardware. All EX switches are tested in-house, cleaned, reset to factory defaults, and backed by our 1-Year In-House Warranty.

Q: How do I choose between EX2300, EX3400, EX4300, EX4400, and EX4650?
A: The right EX platform depends on factors such as port density, PoE requirements, uplink speeds, stacking needs, and lifecycle plans. Our team can help you compare features and build configurations based on your campus, branch, or data center design.

Q: Can EX Series switches work with QFX data center fabrics and MX routers?
A: Yes. Many customers deploy EX at the access layer, QFX for data center leaf–spine fabrics, and MX as edge or core routers. Because they share Junos OS and common features, EX can integrate cleanly with QFX and MX in unified Juniper architectures.

Q: Do you buy used Juniper EX equipment?
A: Yes. In addition to selling used EX switches, BrightStar Systems runs a Juniper equipment buyback program. If you are decommissioning or upgrading, you can send us an inventory list to receive a buyback quote.

Q: Can you help me purchase both Juniper EX and other hardware such as QFX or Arista?
A: We regularly help customers source mixed environments that include Juniper EX and QFX along with Arista 7000 Series switches. This allows you to standardize on cost-effective, lab-tested hardware across vendors while maintaining consistent performance and features.
Request Pricing or Sell Your Juniper EX Series Switches

Request Juniper EX Series Pricing
Buy Used Juniper Switches
Sell Your Juniper EX Equipment
Contact BrightStar Systems to discuss larger Juniper projects or mixed-vendor designs.