Juniper EX4600-EM-8F SFP+/SFP expansion module for EX4600 and QFX5100-24Q.

The EX4600 line of Ethernet switches delivers data center class scale, high availability, and high performance to campus
distribution deployments.
The EX4600 offers fixed 10 Gpbs and modular 10 Gpbs and 40 Gbps ports, giving it the flexibility to also be implemented in data center top-of-rack and service provider aggregation deployments.

Featuring up to 72 wire-speed 10GbE small form-factor pluggable and pluggable plus transceiver (SFP/SFP+) ports, and up to 12 wire-speed 40GbE quad SFP+ transceiver (QSFP+) ports in a compact one rack unit (1 U) platform, the Juniper Networks® EX4600
Ethernet Switch delivers 1.44 Tbps of Layer 2 and Layer 3 connectivity to networked devices such as secure routers, servers, and other switches. The EX4600 base switch provides 24 fixed 1GbE SFP/10GbE SFP+ ports1 and 4 fixed 40GbE QSFP+ ports, providing the flexibility to support mixed 1GbE, 10GbE and 40GbE environments. A total of four models are available:
two featuring AC power supplies and front-to-back or back-to-front airflow; and two featuring DC power supplies and front-to-back or back-to-front airflow. Each model includes dual power supplies. All versions feature two expansion slots that can accommodate optional expansion modules, providing tremendous configuration and deployment flexibility for enterprise distribution networks.
Two expansion modules are available:
8xGBASE/10GBASE SFP/SFP+ fiber expansion module2
4x40GbE QSFP+ expansion module3

The EX4600 supports Juniper Networks unique Virtual Chassis technology, which enables up to 10 interconnected switches to operate as a single, logical device with a single IP address. Virtual Chassis technology enables enterprises to separate physical topology from logical groupings of endpoints, ensuring efficient resource utilization. The EX4600 can participate in the same Virtual Chassis configuration with the Juniper Networks EX4300 Ethernet Switch, delivering highly flexible and scalable configuration options for enterprise distribution deployments. EX4600 switches in a Virtual Chassis configuration can be connected using up to 16 of
the 10GbE or 40GbE ports in link aggregation groups (LAGs) across 10GbE/40GbE ports, providing an aggregate backplane capacity of up to 1.04 Tbps. In the data center, EX4600 Virtual Chassis deployments can extend across multiple topof-rack or end-of-row switches, providing tremendous configuration flexibility for 10GbE server connectivity by only requiring redundant links between Virtual Chassis groups rather than each physical switch to ensure high availability. In addition, mixed Virtual Chassis
configurations featuring EX4300 and EX4600 switches provide an ideal solution for data centers with a mix of 1GbE and 10GbE servers, or for environments transitioning from 1GbE to 10GbE server connectivity.