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The HPE Juniper Networking QFX5140 Switch Series is a next-generation 1 RU fixed-configuration data center switch for AI fabrics and spine/leaf (including border leaf) deployments, delivering high bandwidth, low latency, and operational efficiency. Powered by the Broadcom Trident 5 ASIC with 112G PAM4 SerDes, it provides up to 16 Tbps switching capacity with native 400G and 800G interfaces and flexible breakout up to 160x 100G for rapid scale out. Optimized for predictable, low-jitter inference traffic with low microsecond latency and right-sized on-chip buffering, it also supports RoCEv2 and modern congestion management (PFC, DCQCN, dynamic load balancing) to enable efficient GPU-to-GPU communication while maintaining Ethernet flexibility.
Maximize your HPE Juniper Networking QFX5140 Switch Series
High Performance and High Density
The QFX5140 delivers 16 Tbps throughput in a 1 RU fixed switch.
The QFX5140 delivers 24 × 400G QSFP112 ports with native 112G PAM4 SerDes and 8 × 800G OSFP800 ports for ultra-high-bandwidth uplinks.
The QFX5140 supports 400G LPO on all QSFP112 ports.
Operational Efficiency
The QFX5140 leverages the Junos OS Evolved operating system that improves resiliency, programmability, and upgrade velocity through strong fault isolation, open APIs, and support for third-party tools and automation at scale.
Apstra Data Center Director supports the QFX5140 providing intent-based networking.
AI/ML & Storage Fabric Ready
The QFX5140 implements ROCEv2 for large-scale AI/ML data movement with QoS.
The QFX5140 supports end-to-end DCN (data center networking) congestion control and global load balancing (GLB).
The QFX5140 is ideal for inference and storage network deployments.
HPE Juniper Networking QFX5140 Switch Series data sheet
