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by Juniper
Product Line: Juniper EX4550 Series
Product Type: Ethernet Switch
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Product Description

The EX4550-32T-AFO is a Juniper-based 32-port 100/1G/10GBASE-T converged switch with a switching capacity of 960 Gbps and a forwarding rate of 714 Mpps. It features a 650W AC power supply with back-to-front airflow (PSU side to port side) and includes 1x RJ-45 Serial Console, 1x Gigabit Management, 1x USB 2.0, and 1x mini-USB (Type B) Console for management ports. The device supports up to 32,000 MAC addresses, operates within a temperature range of 32°F to 104°F, and has a predicted MTBF (Mean Time Between Failures) of 146,000 hours with a FIT Rate of 6,858.

FAQs for the EX4550-32T-AFO

  • What is the switching capacity of the 32-port 100/1G/10GBASE-T converged switch?
    The switching capacity is 960 Gbps.
  • How many network ports does the EX4550 switch have?
    It has 32x 10 Gigabit Ethernet SFP+ network ports.
  • What type of power supply is included with the switch?
    Included is a JPSU-650W-AC-AFI - 650W AC Power Supply.
  • Can you detail the airflow direction for the device?
    The airflow direction is back-to-front, from port side to PSU side.
  • What are the dimensions of the switch without front-mounting brackets?
    The dimensions are 17.35 in (44.07 cm) in width, 1.72 in (4.37 cm) in height, and 18.5 in (46.99 cm) in depth.
  • What is the maximum operating temperature for the switch?
    The maximum operating temperature is 104°F.
  • How many MAC addresses can the switch's table hold?
    The MAC Address Table Size is 32,000.
  • What is the predicted MTBF (Mean Time Between Failures) for the switch?
    The predicted MTBF is 146,000 hours.
  • Are rack mounts included with the switch?
    Yes, rack mounts are included (1-RU).
  • What are the available management ports on the switch?
    There is 1x RJ-45 Serial Console, 1x Gigabit Management, 1x USB 2.0, and 1x mini-USB (Type B) Console.

Product Review

The Juniper EX4550-32T-AFO switch offers a high switching capacity of 960 Gbps and a forwarding rate of 714 Mpps, making it suitable for environments requiring high bandwidth and throughput. With 32x 10 Gigabit Ethernet SFP+ ports, it supports a range of networking demands but lacks in-built 40/100 GbE ports for future scalability. Its design includes back-to-front airflow, ensuring efficient cooling, yet the switch operates within a relatively narrow temperature range, potentially limiting deployment in extreme environments.


The Juniper EX4550-32T-AFO is a high-performance, 32-port 100/1G/10GBASE-T converged switch designed to meet the requirements of the most demanding data center and campus environments. This switch offers a comprehensive feature set that provides high availability, security, and ease of management. With a 650 W AC power supply and built-in port side to PSU side airflow, the EX4550-32T-AFO ensures efficient cooling and reliable operation. Key hardware specifications include a predicted mean time between failures (MTBF) of 146 thousand hours and a failure in time (FIT) rate of 6,858, highlighting the switch's reliability. For connectivity, it is equipped with 32x 10 Gigabit Ethernet SFP+ network ports, enhancing its versatility in various networking scenarios. Management is simplified through a range of ports including 1x RJ-45 Serial Console, 1x Gigabit Management, 1x USB 2.0, and 1x mini-USB (Type B) Console, providing multiple options for network configuration and monitoring. Additional features of the Juniper EX4550-32T-AFO include: - Two module slots for expansion, allowing for increased network capacity and functionality. - Back-to-Front Airflow (PSU side to port side airflow), which ensures optimal cooling for the system components. - A 650W AC power supply, ensuring sufficient power for all connected devices and network operations. The switch boasts a switching capacity of 960 Gbps and a forwarding rate of 714 Mpps, enabling it to handle large amounts of data with minimal latency. It supports a MAC address table size of 32,000, facilitating efficient network traffic management and security. Rack mounts are included, with the unit occupying 1-RU in rack space, making it suitable for compact data center environments. In terms of physical dimensions, the EX4550-32T-AFO measures 1.72 inches in height, 17.35 inches in width without front-mounting brackets (19 inches with brackets), and 18.5 inches in depth. The switch weighs 19.4 lb with either an AC or DC power supply, which themselves weigh 2.4 lb each. This compact design allows for efficient use of space within network racks. The operating temperature range of the switch is from 32°F to 104°F, with a storage temperature range from -40° to 158° F, ensuring reliability in a wide range of environmental conditions. Additionally, the switch can operate at altitudes up to 10,000 ft and can be stored at altitudes up to 16,000 ft, making it versatile for various installation locations. Overall, the Juniper EX4550-32T-AFO is a powerful, flexible, and reliable switch designed for high-performance networking environments. Its comprehensive set of features and specifications make it an excellent choice for organizations looking to deploy a scalable, secure, and efficient networking infrastructure.


Item Number and Brand Juniper EX4550-32T-AFO
Type 32-port 1/10GbE Converged Network Switch
Power Supply Capacity 650W AC, Integrated
Airflow Pattern Port to Power Supply Direction
Mean Time Between Failures (Hours) 146,000
Failure Index per Trillion Hours (FIT) 6,858
High-Speed Networking Ports 32 x 10GbE SFP+
Administrative Connectivity 1 x RJ-45 Serial, 1 x 1GbE Management, 1 x USB 2.0, 1 x mini-USB Console
Expansion Options 2 x Expansion Slots
Cooling Mechanism Direction PSU to Port Airflow
Power Unit Provided 1 x 650W AC
Performance Capacity 960 Gbps Switching Capacity
Data Processing Rate 714 Million Packets per Second
MAC Address Entries 32,000 Entries
Mounting Equipment 1-RU Rack Mounts Provided
Physical Dimensions - Height 1.72 inches (4.37 cm)
Physical Dimensions - Width 17.35 inches (44.07 cm) / 19 inches (48.3 cm) with brackets
Physical Dimensions - Depth 18.5 inches (46.99 cm)
Weight - Switch with Power Supply 19.4 lbs (8.8 kg)
Weight - AC Power Unit 2.4 lbs (1.1 kg)
Weight - DC Power Option 2.4 lbs (1.1 kg)
Operational Temperature Range 32°F to 104°F (0°C to 40°C)
Storage Temperature -40°F to 158°F (-40°C to 70°C)
Working Altitude Up to 10,000 feet (3,048 meters)
Non-Operational Altitude Up to 16,000 feet (4,877 meters)

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