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

The EX4550-32T-AFI is a Juniper Networks switch that features 32-port 100/1G/10GBASE-T for high-speed data transfer and a 960 Gbps switching capacity to efficiently handle network traffic. It includes a 650 W AC power supply with back-to-front airflow (PSU side to port side) to ensure optimal cooling, supporting an operating temperature range from 32°F to 104°F. With a 146 khrs predicted MTBF and a forwarding rate of 714 Mpps, this switch is designed for reliable and efficient network performance, accommodating a wide range of temperatures and altitudes for versatile deployment scenarios.

FAQs for the EX4550-32T-AFI

  • What is the total number of network ports available on the 32-port 100/1G/10GBASE-T converged switch?
    The switch provides 32x 10 Gigabit Ethernet SFP+ network ports.
  • How is airflow directed within the switch?
    Airflow is directed from the PSU side to the port side, ensuring back-to-front airflow.
  • Can you detail the management interfaces available on this switch?
    The switch includes 1x RJ-45 Serial Console, 1x Gigabit Management, 1x USB 2.0, and 1x mini-USB (Type B) Console for management purposes.
  • What power supply unit is included with the switch?
    It comes with a 650W AC power supply, model JPSU-650W-AC-AFI.
  • What are the dimensions and weight of the EX4550 switch with an AC or DC power supply?
    The dimensions are 1.72 in (H) x 17.35 in (W) without front-mounting brackets and 19 in with brackets, and a depth of 18.5 in. The weight is 19.4 lb.
  • What is the switching capacity of the switch?
    The switching capacity is 960 Gbps.
  • What is the maximum operating temperature for the switch?
    The maximum operating temperature is 104°F.
  • How many module slots are available in this switch?
    There are 2 module slots available for expansion.
  • What is the predicted MTBF and FIT rate for this model?
    The predicted MTBF is 146,000 hours, and the FIT rate is 6,858.
  • What are the specifications for operating and nonoperating altitude?
    The operating altitude limit is up to 10,000 ft, and the nonoperating altitude limit is up to 16,000 ft.

Product Review

The Juniper EX4550-32T-AFI switch offers high-density 10 Gigabit Ethernet SFP+ ports, making it suitable for environments requiring high bandwidth and scalability. Its switching capacity of 960 Gbps and a forwarding rate of 714 Mpps ensure efficient data handling for medium to large networks. However, the switch is limited by its relatively high FIT Rate of 6,858 and a mean time between failures (MTBF) of 146,000 hours, indicating potential reliability concerns over extended use.


The Juniper EX4550-32T-AFI is a high-performance, flexible networking solution designed to meet the needs of today's most demanding enterprise and data center environments. This 32-port converged switch offers a powerful combination of 100M, 1G, and 10GBASE-T connectivity, providing a versatile platform for deploying high-density gigabit and 10 gigabit Ethernet networks. Equipped with a 650W AC power supply, the EX4550-32T-AFI ensures reliable operation with PSU side to built-in port side airflow, optimizing cooling for sustained performance. The switch's design focuses on efficiency and reliability, with a predicted mean time between failures (MTBF) of 146,000 hours and a failure in time (FIT) rate of 6,858, indicating a robust build quality suited for continuous operation. Key hardware specifications of the Juniper EX4550-32T-AFI include: - Network Ports: 32x 10 Gigabit Ethernet SFP+ for high-speed data transfer and connectivity options. - Management Ports: This switch is equipped with a comprehensive set of management ports, including 1x RJ-45 Serial Console, 1x Gigabit Management, 1x USB 2.0, and 1x mini-USB (Type B) Console, facilitating easy setup, monitoring, and maintenance. - Module Slots: The presence of 2x Module Slot enhances the switch's flexibility, allowing for expansion and customization to meet specific network requirements. In terms of performance, the EX4550-32T-AFI boasts a switching capacity of 960 Gbps and a forwarding rate of 714 Mpps, ensuring rapid data processing and transmission across the network. The switch supports a MAC Address Table Size of 32,000, enabling efficient handling of large numbers of devices and users. Physical dimensions of the switch include a height of 1.72 inches, a width of 17.35 inches without front-mounting brackets (19 inches with brackets), and a depth of 18.5 inches. The EX4550 switch with one AC or DC power supply weighs 19.4 lb, with the AC power supply unit alone weighing 2.4 lb. These dimensions and weights make the switch suitable for standard rack mounting in a 1-RU space, with rack mounts included. Operational parameters include an operating temperature range from 32°F to 104°F and a storage temperature range from -40° to 158°F. The switch can operate at altitudes up to 10,000 ft and can be stored at altitudes up to 16,000 ft, ensuring versatility in various installation environments. Overall, the Juniper EX4550-32T-AFI is an advanced networking switch that delivers high performance, scalability, and reliability. Its comprehensive feature set, including high-speed connectivity options, flexible management and expansion capabilities, and robust physical and operational specifications, make it an ideal choice for enterprises and data centers looking to build or upgrade their network infrastructure.


Item Number and Producer Juniper EX4550-32T-AFI
Type 32-port switch supporting 100M/1G/10G Ethernet
Power Supply 650W AC, from PSU to port airflow
Mean Time Between Failures (Hours) 146,000
Failure Intensity Rate 6,858
Ethernet Interfaces 32x 10GbE SFP+
Administrative Interfaces RJ-45 console, Gigabit Ethernet management, USB 2.0, mini-USB (Type B) console
Expansion Slots 2
Cooling Method PSU to port airflow (Back-to-Front)
Included Power Unit 650W AC (JPSU-650W-AC-AFI)
Switch Fabric Capacity 960 Gbps
Data Processing Rate 714 Mpps
MAC Entries 32,000
Mounting Option 1-RU rack mounts provided
Physical Measurements Height: 1.72 in, Width without brackets: 17.35 in, Width with brackets: 19 in, Depth: 18.5 in
Unit Weight Switch with one power supply: 19.4 lb, AC or DC power supply: 2.4 lb
Minimum Operating Temperature 32°F
Maximum Operating Temperature 104°F
Temperature Range for Storage -40°F to 158°F
Operational Elevation Up to 10,000 ft
Storage Elevation Up to 16,000 ft

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