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15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
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On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
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Part Number: EX4400-48P
Description: EX4400, 48-port 1G POE Switch with 2x100G uplink/stacking ports – 90W POE. MACsec AES256 capable (optional license sold separately). Optional extension module (sold separately): 4x10G or 4x25G
Category: Juniper Other Switches, Juniper Switches, Switches
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 EX4400-48P leverages Juniper Mist Wired Assurance to provide unparalleled visibility and control over your network infrastructure. This cloud-ready switch is part of the underlying infrastructure for Juniper Mist Wired Assurance, allowing network administrators to monitor traffic flows and network performance with ease. This delivers flow-based telemetry that enables AI for IT operations (AIOps), simplifying day-to-day operations while optimizing the experience of connected devices.
The Juniper EX4400-48P offers exceptional power flexibility with 48 x 1GbE PoE access ports delivering up to 90 W per port, supporting the latest connected PoE powered devices. With an overall PoE power budget of 2200 W when using two power supplies, this ethernet switch ensures reliable power delivery for VoIP phones, security cameras, and Wi-Fi 6 access points. This leverages Mist AI technology to provide perpetual PoE, ensuring uninterrupted power to connected devices even during switch reboots.
Security is paramount in today’s networks, and the EX4400-48P delivers comprehensive protection. This supports MACsec AES-256 encryption for secure data transmission, protected extensible authenticated protocol, and media access control security features. This juniper switch excels in environments requiring multiple VLAN registration protocol support and offers flexible overlay network capabilities to maintain data integrity across your infrastructure.
The Juniper EX4400-48P is designed for expanding network environments with Juniper’s Virtual Chassis technology allowing up to 10 switches to be interconnected and managed as a single device. This provides a scalable, pay-as-you-grow solution that simplifies network expansion across medium distributed enterprise networks. This offers Virtual Router Redundancy Protocol support and multiple destination ports to create flexible, resilient network architectures.
| Feature | Specification |
| Model Number | EX4400-48P |
| Form Factor | 1U Rack-mountable |
| Access Ports | 48 x 1GbE PoE++ RJ-45 ports (802.3af/at/bt) |
| Maximum PoE Power | 90 W per port |
| Total PoE Budget | 1310 W (1 PSU) / 2200 W (2 PSU) |
| Uplink/Stacking Ports | 2 x 100GbE QSFP28 ports (can accept 40GbE optics) |
| Extension Module Support | Optional 4 x 1/10GbE SFP+, 4 x 1/10/25GbE SFP28, or 1 x 100GbE QSFP28 module |
| Switching Capacity | 348 Gbps (unidirectional) / 696 Gbps (bidirectional) |
| Forwarding Rate | 517 Mpps |
| MAC Address Table | 128,000 entries |
| VLAN Support | Up to 4,094 VLANs |
| Power Supplies | Hot-swappable, redundant AC or DC power supplies |
| Fans | Dual hot-swappable fan trays (front-to-back or back-to-front airflow) |
The Juniper EX4400-48P [part number] operates on the robust network operating system Junos OS, providing a comprehensive suite of networking features:
The EX4400-48P is part of Juniper’s broad EX4400 line of ethernet switches, which includes several models optimized for different deployment scenarios:
EX4400-24X: 24 x 10GbE SFP+ fiber access/distribution ports
The Juniper EX4400 48P offers exceptional value by combining high-performance networking with efficient power management. Its underlying infrastructure supports advanced protocols while delivering 90 W per port PoE capabilities, making it ideal for organizations seeking to maximize their investment. The switch leverages Mist AI to reduce operational costs through automated management and improved visibility into connected devices.
This supports seamless integration with existing networks through comprehensive protocol support and flexible deployment options. With multiple interconnected switches capabilities via Juniper’s Virtual Chassis technology, the device can be incorporated into campus fabric deployments while maintaining compatibility with third-party systems through industry-standard protocols like Link Layer Discovery Protocol and IEEE standards for ethernet access switches.
This is engineered for expanding network environments with scalable architecture supporting up to 10 switches in a single virtual chassis configuration. The platforms boost network performance through advanced ethernet ports, optional uplink modules supporting speeds up to 100GbE, and EVPN-VXLAN technology for flexible overlay networks, making it a robust hardware foundation for networks of the next decade.
The Juniper EX4400-48P delivers carrier-class reliability through redundant link aggregation connections, dual hot-swappable power supplies, and field-replaceable fans for maximum uptime. This supports redundant trunk group functionality, enabling network administrators to implement uplink failure detection without complex spanning tree protocol configurations, while N+1 redundant Routing Engine capabilities ensure smooth operations even during hardware failures.
The EX4400-48P transforms network operations with intuitive deployment capabilities through Juniper Mist Wired Assurance. Network administrators can implement zero-touch deployment using a single activation code, configure ports via Dynamic Port Profiles, and leverage Marvis Actions to automatically identify and resolve common issues like missing VLANs or port negotiation mismatches, dramatically simplifying day-to-day operations in data center networks and campus environments.
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.
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