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by Juniper
Product Line: Juniper EX4400 Series
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Product Description

The EX4400-24T Juniper features a 24-port 10/100/1000BASE-T configuration, supporting up to 2(3) 100GbE/40GbE ports with an additional module, and a 550 W AC power supply. It offers a high-performance backplane with a 400 Gbps Virtual Chassis interconnect, allowing up to 10 units to function as a single device, and boasts a packet switching capacity of 324 Gbps (unidirectional)/648 Gbps (bidirectional) with a throughput of 482 Mpps. Designed for efficiency, it includes front-to-back airflow (AFO), operates within a temperature range of 32°F to 113°F, and supports jumbo frames up to 9216 Bytes.

FAQs for the EX4400-24T

  • What is the total number of 10/100/1000BASE-T access ports available on the switch?
    The switch has 24 10/100/1000BASE-T access ports.
  • How many 100GbE/40GbE ports can the switch support at maximum with an additional module?
    With an additional module, the switch can support up to 3 100GbE/40GbE ports.
  • What is the power supply rating of the switch?
    The power supply rating of the switch is 550 W AC.
  • Can you describe the airflow orientation of the switch?
    The switch features AFO (Airflow Front-to-Back) orientation.
  • What is the maximum virtual chassis interconnect backplane speed?
    The switch offers a 400 Gbps Virtual Chassis interconnect to link up to 10 units as a single logical device.
  • What are the dimensions of the switch including the power supply and fans?
    The dimensions are 17.39 x 1.72 x 16.93 inches (44.17 x 4.37 x 43 cm).
  • What is the system weight of the switch?
    The system weight of the switch is 1.76 lb (0.8 kg).
  • How many field-replaceable fans does the switch have?
    There are 2 field-replaceable fans in the switch.
  • What is the packet switching capacity of the switch?
    The switch has a packet switching capacity of 324 Gbps (unidirectional)/648 Gbps (bidirectional).
  • What is the maximum operating altitude of the switch?
    The maximum operating altitude of the switch is up to 10,000 ft (3,049 m).

Product Review

The Juniper EX4400-24T switch offers a solid 24-port 10/100/1000BASE-T configuration, enhanced with the capability to expand up to 100GbE/40GbE through modules, catering to high-bandwidth needs. Its 400 Gbps backplane for Virtual Chassis interconnect allows scaling up by combining up to 10 units as a single device, providing substantial throughput of 482 Mpps and packet switching capacities for large-scale deployments. However, its performance is constrained by a single 550 W AC power supply, potentially limiting its deployment in power-intensive environments or requiring additional investment in redundant power supplies for high-availability scenarios.


The Juniper EX4400-24T is a highly capable switch designed to meet the demands of modern enterprise networks, offering a blend of performance, scalability, and flexibility. This switch is equipped with 24 10/100/1000BASE-T access ports, making it suitable for a wide range of applications, from high-speed office environments to demanding data center settings. At the core of the EX4400-24T are its advanced networking capabilities, highlighted by the inclusion of up to three 100GbE/40GbE ports with an additional module. This allows for high-speed connections essential for backbone networking or high-speed server aggregation, ensuring that your network can handle the growing demands for data bandwidth and speed. The power supply of the EX4400-24T is rated at 550 W AC, providing ample power for the switch's operations and allowing for PoE (Power over Ethernet) capabilities on supported ports. This feature simplifies the deployment of network devices such as VoIP phones and wireless access points by eliminating the need for separate power supplies. The switch supports a backplane of 400 Gbps, enabling a Virtual Chassis interconnect that can combine up to 10 units as a single logical device. This scalability feature simplifies network management and increases operational efficiency by providing a single point of management for multiple switches. - Packet Switching Capacities: 324 Gbps (unidirectional)/648 Gbps (bidirectional) - Throughput: 482 Mpps - Maximum MAC addresses per system: 112,000 Physically, the EX4400-24T is designed to fit in a standard 1U rack space, with dimensions of 17.39 x 1.72 x 16.93 inches and a weight of 1.76 lb without the power supply or fan modules. The system's total weight, including the EX4400 switch and EX4400 Multigigabit switch without the power supply or fan module, is 13.01 lb. It also features field-replaceable fans, with each fan module weighing 0.26 lb, to ensure the system remains cool and operates at optimal efficiency. The switch is built to operate within a broad range of environmental conditions. It supports operating temperatures from 32° F to 113° F and can be stored in temperatures ranging from -40° F to 158° F. The EX4400-24T is designed to function at altitudes up to 10,000 feet when operating and up to 16,000 feet when non-operating, with a relative humidity tolerance of 0% to 95% (noncondensing), ensuring reliable performance in a wide variety of physical environments. In summary, the Juniper EX4400-24T is a highly versatile and efficient switch that provides the essential features required for modern networking environments. Its combination of high-speed access ports, scalability options, and robust environmental tolerances make it a suitable choice for organizations looking to build or upgrade their network infrastructure.


Model NumberJuniper EX4400-24T
Ports Configuration24 x 10/100/1000BASE-T Ethernet Ports
High-Speed Ethernet PortsUp to 2 (Expandable to 3 with additional module)
Power Supply Capacity550 W AC
Cooling Mechanism DirectionFront-to-back airflow (AFO)
Interconnection Bandwidth400 Gbps via Virtual Chassis technology, linking up to 10 devices as one
Physical Dimensions17.39 x 1.72 x 16.93 inches (44.17 x 4.37 x 43 cm)
Rack Units1U
Device Weight1.76 lb (0.8 kg)
Number of Replaceable Fans2
Weight of Fan Module0.26 lb (0.12 kg)
Switching Capacity324 Gbps unidirectional, 648 Gbps bidirectional
Data Throughput482 Mpps
MAC Address Table Size112,000 entries
Maximum Frame Size9216 bytes (Jumbo frames)
Minimum Operating Temperature32° F
Maximum Operating Temperature113° F
Minimum Storage Temperature-40° F
Maximum Storage Temperature158° F
Maximum Operating Altitude10,000 ft (3,049 m)
Maximum Non-operating Altitude16,000 ft (4,877 m)
Humidity Range (Non-operating)0% to 95%, non-condensing
Weight (Switch without PSU or fan module)13.01 lb (5.9 kg)

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