Juniper EX4400-48T - 48× 1GbE RJ45 Access Switch with 2× 100GbE Uplinks, 1U Design, AC/DC Power, AFO/AFI Cooling

Juniper EX4400-48T is a high-performance 1U access switch engineered for campus, branch, and data centre networks, providing a robust foundation for enterprise connectivity. Part of the EX4400 platform, it comes equipped with 48× 1GbE RJ45 access ports, 2× 100GbE QSFP28 uplinks, and optional extension modules, offering flexible airflow options (AFO/AFI) and power configurations (AC/DC) to meet a variety of deployment requirements.

Designed for organisations seeking secure, scalable, and highly available network solutions, the EX4400-48T supports advanced Layer 3 routing, Virtual Chassis stacking for simplified management, and AI-driven insights via Juniper Mist™ for proactive monitoring and automation. Its combination of reliability, flexibility, and intelligent management ensures seamless performance for modern enterprise networks, making it ideal for high-density environments and evolving IT infrastructures.

KEY FEATURES:

• Total Ports: 48 × 1GbE RJ45 access ports
• Uplink Ports: 2 × 100GbE QSFP28 + optional extension module for 4×10GbE or 4×25GbE
• PoE/PoE++ Support: Not supported (non-PoE model)
• Switching Capacity: 348 Gbps unidirectional / 696 Gbps bidirectional
• Forwarding Rate: 517 Mpps
• CPU: 2.2 GHz Quad-Core Intel x86 CPU
• Packet Buffer: 12 MB shared
• MAC Address Table: 112,000 entries
• VLAN Support: Up to 4,000 VLANs
• Latency: ~2.5 µs (typical)
• Resiliency: Redundant hot-swappable AC/DC power supplies and field-replaceable fans
• Airflow: Front-to-back (AFO) / Back-to-front (AFI) depending on model
• Form Factor: 1U rack-mountable
• Advanced Features: Virtual Chassis support, AI-driven management with Juniper Mist™, MACsec encryption, EVPN-VXLAN overlay support

TECHNICAL SPECIFICATION:

HARDWARE:

PERFORMANCE:

SECURITY:

MANAGEMENT:

PHYSICAL AND ENVIRONMENTAL:

ADVANCED FEATURES:

Virtual Chassis Technology:

Supports stacking up to 10 switches to operate as a single logical device. This provides centralised management, simplified configuration, and consistent policy enforcement across the stack. In the event of a switch failure, Virtual Chassis automatically provides failover to maintain uninterrupted network connectivity. Cross-chassis redundancy allows seamless network expansion, enabling organisations to scale without downtime.

AI-Driven Management with Juniper Mist™:

Offers a cloud-based, AI-driven network management platform that delivers real-time monitoring, predictive analytics, anomaly detection, and proactive troubleshooting. Administrators can automate configuration, monitor performance trends, and detect potential issues before they impact users. Mist AI also provides location-based services, policy-driven automation, and detailed insights into both device and client behaviour, enhancing operational efficiency and user experience.

EVPN-VXLAN Overlay Support:

Enables scalable Layer 2 and Layer 3 overlays for flexible network segmentation, multi-tenancy, and seamless connectivity across sites. Supports large-scale Layer 2 extensions, VM mobility, and integration with virtualised workloads, ensuring consistent policies, efficient routing, and optimal network performance.

MACsec Encryption:

Hardware-based AES-256 MACsec encryption secures data in transit across access ports. It protects against eavesdropping, man-in-the-middle attacks, and unauthorised network access, helping enterprises meet compliance requirements and safeguard sensitive traffic.

Zero Trust Security Enforcement:

Provides dynamic policy enforcement, access control, and network segmentation to protect users, devices, and applications. Supports role-based access policies and integrates with Juniper security and identity solutions for end-to-end protection in wired and wireless networks.

High Availability and Redundancy:

Hot-swappable AC/DC power supplies and field-replaceable fans ensure continuous operation during maintenance or component replacement. Dual redundant power and fan modules, combined with configurable airflow options (AFO/AFI), provide optimal cooling and uninterrupted service in enterprise, campus, or data centre environments.

Scalable Uplink and Extension Modules:

Offers modular uplink support, including 10GbE or 25GbE connections to aggregation and core switches. Supports optional extension modules for additional ports, making the switch future-ready for growing network demands and high-bandwidth applications.

Energy-Efficient Design:

Optimised to reduce power consumption without compromising performance. Intelligent power management adapts energy usage according to load and environmental conditions, lowering operational costs while maintaining high throughput and reliability.

Advanced Monitoring and Telemetry:

Provides detailed real-time analytics, event logging, and telemetry streaming via Mist AI. Administrators gain visibility into traffic patterns, potential bottlenecks, and device performance, allowing proactive network management.

Flexible Deployment Options:

Supports multiple airflow (AFO/AFI) and power configurations (AC/DC) to suit diverse deployment scenarios, including enterprise offices, campuses, and high-density data centres.

Future-Ready Network Architecture:

Cloud-ready, programmable, and automated operations support virtualisation, IoT, and next-generation applications. Ensures the network evolves alongside emerging technology and enterprise requirements.

Enhanced Operational Efficiency:

Combines AI-driven automation, Virtual Chassis scaling, and cloud telemetry to simplify network management, reduce downtime, and improve service delivery.

Support for High-Density Environments:

Designed to handle growing device connections, including wireless access points, IP cameras, and VoIP phones, with seamless traffic aggregation, prioritised QoS, and consistent performance.

ORDERING INFORMATION:

WARRANTY & SUPPORT:

Manufacturers are responsible for warranties, which are based on the purchase date and validity. We make sure the products we sell are delivered on time and in their original condition at Grabnpay. Whether it's physical damage or operational issues, our team will help you find a solution. We help you install, configure, and manage your devices. We'll help you file a warranty claim and guide you every step of the way.

All listed prices reflect standard market rates. Final commercial terms, including volume-based discounts, will be provided based on purchase volume, MOQ, and other applicable criteria. For more information about switches & other accessories, contact our technical support team.