Juniper QFX5240-64QD - 64 × 800GbE QSFP-DD, Ultra-Low Latency, High-Performance Data Centre Switch

Juniper QFX5240-64QD is a next-generation high-density data centre switch engineered to meet the performance, scalability, and reliability requirements of modern networks. Featuring 64 × 400GbE QSFP-DD ports, this switch delivers exceptional switching capacity and ultra-low latency, making it ideal for spine-and-leaf architectures, super-spine designs, and large-scale multi-tenant data centres. With its advanced EVPN-VXLAN and MPLS capabilities, the QFX5240-64QD seamlessly integrates into enterprise, cloud, and service provider environments.

Part of the industry-leading Juniper QFX Series of switches, the QFX5240-64QD provides a robust foundation for AI/ML clusters, hybrid cloud infrastructures, and high-performance workloads. As a cutting-edge Juniper network switch, it combines automation, real-time telemetry, and intent-based networking to simplify operations and enhance visibility. Positioned as a competitive alternative to HPE switches, it ensures future-proof scalability while maintaining enterprise-grade security with MACsec AES-256 encryption. This makes it a trusted choice for organisations seeking reliable, high-speed, and secure connectivity.

KEY FEATURES:

• Total Ports: 64 × 400GbE QSFP-DD ports
• Port Flexibility: 64 × 800GbE, 128 × 400GbE, 256 x 200GbE, 320 x 100GbE, 256 x 50GbE
• Switching Capacity: Up to 25.6/51.2 Tbps (uni/bidirectional)
• Forwarding Rate: 10.53 billion packets per second
• CPU: Intel Ice Lake (4 core)
• System Memory: 32GB (16GBx2) of DDR4
• Onboard Storage: 2x480GB
• Packet Buffer: 165 MB
• MAC Address Table: Supports up to 128,000 entries
• VLAN Support: Up to 4,096 VLANs
• Jumbo Frames: Supports frames up to 9,216 bytes
• Latency: range of 700-750ns
• High Availability: Redundant hot-swappable AC/DC power supplies and fan trays
• Airflow Options: Available in both front-to-back (AFO) and back-to-front (AFI) models
• Advanced Features: EVPN-VXLAN, MPLS, Segment Routing, MACsec AES-256 encryption, automation, and real-time telemetry

TECHNICAL SPECIFICATIONS:

HARDWARE:

PERFORMANCE:

SECURITY:

MANAGEMENT:

PHYSICAL AND ENVIRONMENTAL:

ADVANCED FEATURES:

EVPN-VXLAN Overlay Support:

The QFX5240-64QD provides full support for EVPN-VXLAN overlays, enabling highly scalable Layer 2 and Layer 3 connectivity across data centre fabrics. This allows seamless workload mobility, secure tenant isolation, and simplified interconnects between private and hybrid cloud environments. The feature is particularly beneficial for AI/ML clusters, cloud-native workloads, and large enterprise fabrics, ensuring consistent performance and robust scalability across all deployments. Integration with other Juniper QFX switches ensures end-to-end interoperability and fabric consistency.

MPLS & Segment Routing:

With advanced MPLS and segment routing capabilities, the switch enables efficient traffic engineering, deterministic path selection, and fast convergence. This makes it suitable for service providers and enterprises requiring reliable multi-tenant networking. It supports predictable routing for latency-sensitive applications and enables hybrid cloud interconnects with high availability. Together, MPLS and segment routing strengthen the QFX5240-64QD’s role as a future-ready Juniper network switch designed for high-scale operations.

MACsec AES-256 Encryption:

The QFX5240-64QD incorporates hardware-based MACsec AES-256 encryption to secure traffic across the data plane. This ensures compliance with enterprise-grade security standards while safeguarding against eavesdropping and man-in-the-middle attacks. By combining encryption with automated policy enforcement, it protects sensitive workloads across data centre fabrics without compromising on throughput or performance.

High-Density Performance:

Equipped with 64 × 400GbE QSFP-DD ports, the QFX5240-64QD supports breakout configurations up to 256 × 10/25/40/100/200GbE. It delivers switching capacity up to 51.2 Tbps with forwarding rates over 10 billion packets per second. Its ultra-low latency of 600 ns makes it ideal for AI/ML training, cloud data centres, and performance-driven enterprises. The high-density design allows organisations to scale spine, super-spine, and leaf layers efficiently, optimising both space and power consumption.

Automation & Programmability:

Automation is at the core of the QFX5240-64QD, with native support for Apstra, Ansible, Terraform, Python scripting, and ZTP. These frameworks simplify provisioning, orchestration, and ongoing configuration management. API-driven programmability enables integration with DevOps workflows and intent-based networking, accelerating service delivery and minimising operational complexity.

Streaming Telemetry & Analytics:

Built-in Junos Telemetry Interface (JTI) provides real-time visibility into network health, performance, and utilisation. The switch supports streaming telemetry for proactive fault detection and historical trend analysis. This empowers operators to perform predictive capacity planning, SLA monitoring, and rapid troubleshooting in high-density environments.

High Availability & Redundancy:

Designed for mission-critical environments, the QFX5240-64QD includes redundant hot-swappable power supplies, N+1 fan trays, and flexible airflow options (AFO/AFI). These features minimise downtime during component replacement and ensure uninterrupted operation. Load balancing and failover support further enhance availability for enterprises and service providers.

Advanced L2/L3 Capabilities:

The switch provides full support for BGP, OSPF, IS-IS, LAG, 802.1Q VLANs, QoS, and jumbo frames. This rich Layer 2/3 feature set ensures deterministic traffic handling and optimal routing in complex data centre topologies. Combined with large MAC address tables, it supports the scale and segmentation required for multi-tenant operations.

Cloud & Enterprise Workload Ready:

Optimised for AI/ML clusters, high-performance enterprise workloads, and hybrid cloud deployments, the QFX5240-64QD ensures predictable low-latency performance. It supports secure and efficient scaling for private and public cloud fabrics while integrating seamlessly into Juniper switches portfolios. Positioned as a strong competitor to HPE switches, it provides higher automation, programmability, and telemetry support.

Energy-Efficient Design:

The system incorporates intelligent PSU and fan management to reduce energy consumption while maintaining performance. With its energy-saving modes and compliance with environmental standards, the QFX5240-64QD lowers operational costs and supports sustainable data centre designs.

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.