Juniper Networks QFX-EM-4Q 4 QSFP+ Ports Expansion Module for QFX5100-24Q QFX5100-24s

Overview
The Juniper Networks QFX-EM-4Q is a high performance expansion module that adds four QSFP+ ports to the QFX5100-24Q or QFX5100-24s chassis. Designed for data center and enterprise environments, this module enables you to scale bandwidth, increase port density and support a wide range of high speed fiber connections without replacing your existing switch.

Key Features

• Four QSFP+ ports provide up to 40 Gbps per port for flexible uplink and interconnect options
• Seamless integration with QFX5100-24Q and QFX5100-24s platforms
• Supports 40GBASE-SR4, 40GBASE-LR4 and 40GBASE-CR4 optics for multimode, singlemode and copper cabling
• Hot-pluggable design minimizes downtime during installation or upgrades
• Low latency and high throughput to meet demanding virtualization and cloud workloads

Technical Specifications

• Form factor: 1RU expansion module
• Port type: 4 x QSFP+
• Maximum data rate: 40 Gbps per port
• Supported protocols: Ethernet, Fibre Channel over Ethernet, OTN
• Power consumption: typical 15 W per module
• Operating temperature: 0 to 40 degrees Celsius
• Dimensions: 1.75 in (height) x 17.0 in (width) x 12.0 in (depth)

Applications
This expansion module is ideal for:

• Data center spine and leaf architectures requiring high bandwidth uplinks
• Enterprise campus networks that need to aggregate multiple 10G or 25G links
• High performance computing clusters with dense interconnect requirements
• Service provider edge routing where low latency and high capacity are critical
• Virtualized environments and cloud platforms that demand scalable, reliable connectivity

By adding the QFX-EM-4Q to your QFX5100 switch, you gain immediate access to 40 Gbps connectivity, future proof your network infrastructure, and simplify cable management while maintaining the robust reliability Juniper Networks is known for.