Comprehensive Product Overview

The Juniper EX4400-48T is a flagship non-PoE model in Juniper’s EX4400 Series of fixed-configuration access switches, designed to balance enterprise-grade performance, scalability, and cost-efficiency for modern high-density networks. Optimized for environments where Power over Ethernet is unnecessary, it delivers robust gigabit connectivity for desktops, servers, and IoT devices.

Equipped with Juniper Virtual Chassis Technology, the EX4400-48T allows up to 10 switches to be interconnected and managed as a single logical device, simplifying scaling and reducing operational overhead. It supports EVPN-VXLAN for advanced network virtualization, making it suitable for modern data center and campus fabric deployments.

Designed for reliability and flexibility, the switch features front-to-back airflow (standard) with optional back-to-front airflow for data center compatibility, redundant hot-swappable fans, and support for redundant 550W AC/DC power supplies. Running on Junos OS, it provides consistent Layer 2/Layer 3 capabilities, advanced security, and unified management across Juniper’s entire product portfolio.

Key Features & Business Benefits

1. 48×Gigabit Ports + 100G High-Speed Uplinks

• Ports: 48×10/100/1000BASE-T RJ45; 2×100G uplink/stacking ports; optional 4×10G or 4×25G extension module
• Benefit: High-density gigabit connectivity for desktops, servers, and IoT devices; 100G uplinks eliminate bandwidth bottlenecks for high-traffic networks and support fast stacking。

2. High Performance & Scalable Stacking

• Capacity: 696 Gbps switching capacity; 354 Mpps wire-speed forwarding rate
• Virtual Chassis: Up to 10 switches in a single logical domain; 100G ports default as stack links
• Benefit: Wire-speed performance for voice/video/data convergence; scalable “pay-as-you-grow” architecture supports growing device density and simplifies management。

3. Cloud-Ready & AI-Powered Management

• Mist Wired Assurance: AI-driven automation, zero-touch provisioning (ZTP), real-time analytics, and predictive maintenance
• Junos OS: Unified OS for consistent management, security, and performance across Juniper devices
• Benefit: Reduces deployment time from days to hours; minimizes manual configuration errors; lowers IT operational costs with centralized cloud management。

4. Enterprise-Grade Security & Advanced QoS

• Security: MACsec AES256 encryption (optional license), 802.1X authentication, ACLs, 4096 VLANs, and port security
• QoS: 8 queues per port, strict priority scheduling, traffic shaping, and bandwidth limiting
• Benefit: Protects sensitive data and prevents unauthorized access; prioritizes critical traffic (VoIP, video, industrial IoT) for consistent user experience。

5. Reliable & Energy-Efficient Design

• Redundancy: Hot-swappable fans; redundant 550W AC/DC power supplies
• Efficiency: Energy-efficient ASIC; low-power modes; compliant with Energy Star and EPEAT
• Benefit: 99.999% uptime for mission-critical networks; reduces power consumption and cooling costs for sustainable operations。

Technical Specifications

Ideal Application Scenarios

1. Enterprise Campus Wiring Closets: High-density gigabit connectivity for office desktops, printers, and non-PoE devices。
2. Data Center Access Layers: 100G uplinks to aggregation/core switches; redundant components and airflow options for data center reliability。
3. Education & Healthcare: Converged voice/video/data for classrooms, lecture halls, patient rooms, and administrative areas。
4. Retail & Hospitality: Secure guest/employee network segmentation; connectivity for POS terminals and digital signage。
5. Branch Offices: Compact 1U design for space-constrained environments; cloud management for remote IT teams。

Supported Accessories & Modules

• Transceivers (100G/25G/10G): 100GBASE-SR4/LR4; 25GBASE-SR/LR; 10GBASE-SR/LR/ER; DAC/active optical cables。
• Power Supplies: 550W AC (included); 550W DC (optional)
• Fan Modules: Front-to-back (standard); back-to-front (optional)
• Mounting Kits: 19” rack-mount brackets; wall-mount kit; cable management arms。
• Cables: Virtual Chassis stacking cables; console cables; power cords; 100G/25G/10G direct attach cables。

Frequently Asked Questions (FAQ)

Q1: What is the port configuration of the EX4400-48T?

A: It features 48×1G BASE-T RJ45 ports, 2×100G uplink/stacking ports, and an optional 4×10G or 4×25G extension module for additional connectivity。

Q2: Does it support cloud management?

A: Yes, it is Juniper Mist Cloud-ready with ZTP, AI-powered automation, real-time analytics, and predictive maintenance。

Q3: Can I stack multiple EX4400 switches?

A: Absolutely. Virtual Chassis Technology allows up to 10 EX4400 switches to be managed as a single logical device, with 100G ports defaulting as stack links。

Q4: What operating system does it use?

A: It runs on Junos OS, Juniper’s unified operating system, providing consistent Layer 2/Layer 3 capabilities, security, and management across all Juniper devices。

Q5: Is it suitable for data center environments?

A: Yes. It supports front-to-back/back-to-front airflow, redundant hot-swappable components, and 100G uplinks, making it ideal for data center access layers.