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by Juniper
Product Line: Juniper EX4300 Series
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Product Description

The EX4300-32F-TAA is a Trade Agreement Act-compliant network switch featuring 32-port 100/1000BASE-X SFP access ports, expandable up to 46 GbE port density per system with additional modules. It supports up to 12 10GbE ports and 4 40GbE ports through expansion, powered by a 350 W AC power supply, and offers a 320 Gbps Virtual Chassis interconnect capability to link up to 10 units. This device ensures high performance with a 232 Gbps (unidirectional)/464 Gbps (bidirectional) packet switching capacity and 345 Mpps throughput, all within a compact form factor of 17.36 x 1.72 x 19.31 in with power supply and front module installed.

FAQs for the EX4300-32F-TAA

  • What is the form factor and dimensions of the Trade Agreement Act-compliant EX4300?
    The EX4300 has a form factor of 1 RU, with base unit dimensions of 17.36 x 1.72 x 17.87 inches (44.1 x 4.37 x 45.4 cm). With the power supply installed, the depth is 19 inches (48.28 cm), and with both the power supply and front module installed, the depth is 19.31 inches (49.1 cm).
  • How many 10GbE and 40GbE ports does the EX4300 support?
    The EX4300 supports four 10GbE ports natively and can support up to 12 with an additional module. It also supports two 40GbE ports natively, expandable to four with an additional module.
  • Can the EX4300 be used in a Virtual Chassis configuration?
    Yes, the EX4300 features a 320 Gbps Virtual Chassis interconnect allowing up to 10 units to be combined as a single logical device.
  • What are the power specifications of the EX4300?
    The EX4300 is equipped with a 350 W AC power supply, with PSU airflow rated at 7.5 cubic feet per minute.
  • What is the packet switching capacity and throughput of the EX4300?
    The packet switching capacity is 232 Gbps unidirectional or 464 Gbps bidirectional, with a throughput of 345 Mpps (wire speed).
  • How does the EX4300 handle cooling?
    The EX4300 uses front-to-back airflow (AFO) with two field-replaceable fan modules to ensure efficient cooling.
  • What is the operating and storage temperature range of the EX4300?
    The operating temperature range is 32° F to 113° F, and the storage temperature range is -40° F to 158° F.
  • What is the maximum operating altitude for the EX4300?
    The EX4300 can operate at altitudes up to 10,000 feet (3,049 m) and can be stored at altitudes up to 16,000 feet (4,877 m).
  • How many GbE ports are available on the EX4300?
    The EX4300 offers a total of 46 GbE ports per system, including 32 host ports, four 10GbE ports, two 40GbE ports, and additional ports available through optional uplink modules.
  • What is the weight of the EX4300 system and its fan module?
    The system weight is 2.4 lb (1.1 kg), and the fan module weighs 0.33 lb (0.15 kg).

Product Review

The Juniper EX4300-32F-TAA offers a versatile port configuration with 32 100/1000BASE-X SFP ports, complemented by 4 10GBASE-X SFP+ and 2 40GBASE-X QSFP+ ports, enabling scalable high-speed connections. However, its maximum power supply rating of 350W may limit expansion capabilities for power-intensive modules. With a backplane capacity of 320 Gbps, this switch supports Virtual Chassis technology to interconnect up to 10 units, optimizing performance and simplifying management in dense network environments.


The Juniper EX4300-32F-TAA is a Trade Agreement Act-compliant networking switch designed for high-performance computing environments. It features a versatile configuration of ports including 32 100/1000BASE-X SFP ports for gigabit Ethernet connectivity. The device also supports up to four 10GBASE-X SFP+ and two 40GBASE-X QSFP+ ports for high-speed network connections, making it suitable for data-intensive applications. With a 350 W AC power supply, this switch is engineered to handle significant power requirements. - Access Port Configuration: 32-port 100/1000BASE-X - 10GbE Ports (max. with module): 4 (12) - 40GbE Ports (max. with module): 2 (4) The EX4300-32F-TAA offers a backplane with a 320 Gbps Virtual Chassis interconnect capability, allowing up to 10 units to be combined as a single logical device. This feature simplifies the management of large networks by enabling them to be controlled as one. The switch's physical dimensions are compact, with the base unit measuring 17.36 x 1.72 x 17.87 inches (44.1 x 4.37 x 45.4 cm), ensuring it fits easily into standard equipment racks. The system weight is 2.4 lb (1.1 kg), and it includes two field-replaceable fans to ensure consistent cooling, with a PSU airflow of 7.5 cubic feet per minute. In terms of performance, the EX4300-32F-TAA boasts a packet switching capacity of 232 Gbps unidirectional and 464 Gbps bidirectional, with a throughput of 345 Mpps (million packets per second) at wire speed. This ensures that data is transferred efficiently across the network without bottlenecks. The GbE Port Density per System is 46, accounting for the base host ports plus additional uplink module options. This density supports a scalable network design that can grow with organizational needs. The operating temperature range of the device is from 32° F to 113° F, with a storage temperature range from -40° F to 158° F. It can operate at altitudes up to 10,000 ft (3,049 m) and be stored at altitudes up to 16,000 ft (4,877 m). The relative humidity operating range is 10% to 85% (non-condensing), ensuring the switch operates reliably in various environmental conditions. Key hardware specifications of the Juniper EX4300-32F-TAA include: - A power supply rating of 350 W AC, accommodating the energy demands of high-performance networking. - A robust backplane with a 320 Gbps Virtual Chassis interconnect, enhancing network manageability and scalability. - Advanced cooling with two field-replaceable fans, maintaining optimal operating temperatures and system reliability. In summary, the Juniper EX4300-32F-TAA is a powerful and flexible networking switch designed for organizations needing high-speed data transmission, scalability, and reliability. Its comprehensive port configuration, high packet switching capacity, and virtual chassis interconnect capability make it an excellent choice for modern, data-driven environments.


Item Number and Producer Juniper EX4300-32F-TAA
Compliance TAA-compliant EX4300, featuring 32 SFP ports for 100/1000BASE-X, 4 SFP+ ports for 10GBASE-X, 2 QSFP+ ports for 40GBASE-X, and a 350 W AC power supply
SFP Access Ports 32 ports supporting 100/1000BASE-X
10GbE Port Availability 4 standard, expandable to 12 with additional module
40GbE Port Availability 2 standard, expandable to 4 with additional module
Power Supply Capacity 350 W AC
Cooling Method Front-to-back airflow orientation (AFO)
Backplane Speed 320 Gbps connectivity for Virtual Chassis configuration, supporting up to 10 interconnected units
Physical Dimensions Base: 17.36 x 1.72 x 17.87 inches; With PSU: 17.36 x 1.72 x 19 inches; With PSU and front module: 17.36 x 1.72 x 19.31 inches
Unit Weight Main unit: 2.4 pounds; Fan module: 0.33 pounds
Replaceable Fans Yes, 2
PSU Airflow Volume 7.5 cubic feet per minute
Switching Capacity 232 Gbps one way, 464 Gbps bi-directional
Maximum Ethernet Ports 46 (includes 32 for hosts, 4 for 10GbE, 2 for 40GbE, and up to 8 via optional 1/10GbE module or 2 via optional 40GbE module)
Throughput 345 million packets per second (wire-speed)
Minimum Operating Temperature 32°F
Maximum Operating Temperature 113°F
Minimum Storage Temperature -40°F
Maximum Storage Temperature 158°F
Maximum Operating Elevation 10,000 feet
Maximum Non-operating Elevation 16,000 feet
Operating Humidity Range 10% to 85%, non-condensing

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