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by Juniper
Product Line: Juniper EX4300-32F
Product Type: Switch
Original price $3,130.00 - Original price $3,605.00
Original price
$3,130.00 - $3,605.00
Current price $3,130.00
Title: Surplus

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Product Description

The EX4300-32F is equipped with 32-port 100/1000BASE-X SFP and 4x10GBASE-X SFP+ ports, expandable to 12 10GbE ports and 4 40GbE ports with modules, alongside a dual 2x40GBASE-X QSFP+ configuration. It features a 320 Gbps Virtual Chassis interconnect capability, allowing up to 10 units to function as a single device, and supports a packet switching capacity of 232 Gbps (unidirectional)/464 Gbps (bidirectional) with a throughput of 345 Mpps. The system operates within a temperature range of 32°F to 113°F, ensuring reliable performance in diverse environments.

Key Feature for the EX4300-32F

  • What is the maximum number of 10GbE ports available on the 32-port 100/1000BASE-X SFP switch?
    The maximum number of 10GbE ports available is 12, with 4 available on the base unit and an additional 8 possible through an optional module.
  • How does the 350 W AC PS contribute to the switch's performance?
    The 350 W AC power supply supports the switch’s operations by ensuring sufficient power for all ports and modules, maintaining performance and reliability.
  • Can the airflow direction be specified for the switch?
    Yes, the switch supports AFO (Air Flow Out) configuration, ensuring front-to-back airflow for efficient cooling.
  • What are the dimensions of the base unit without the power supply installed?
    The base unit measures 17.36 x 1.72 x 17.87 inches (44.1 x 4.37 x 45.4 cm).
  • Describe the backplane capacity and its purpose in the switch configuration.
    The backplane provides a 320 Gbps Virtual Chassis interconnect, allowing up to 10 units to combine as a single logical device for expanded capacity and simplified management.
  • What is the total GbE port density per system?
    The total GbE port density per system is 46, including 32 host ports, four 10GbE ports, two 40GbE ports, and additional ports from optional uplink modules.
  • What is the switch's throughput capability?
    The switch is capable of a throughput of 345 Mpps (million packets per second), ensuring wire-speed performance.
  • What are the operating temperature limits for the switch?
    The operating temperature range is from 32° F to 113° F.
  • How does the Virtual Chassis technology benefit network management?
    Virtual Chassis technology simplifies network management by allowing multiple switches to be managed as a single entity, improving efficiency and scalability.
  • What is the significance of the switch's packet switching capacities?
    The switch has packet switching capacities of 232 Gbps unidirectional and 464 Gbps bidirectional, enabling high-speed data transmission and efficient network performance.

Product Review

The Juniper EX4300-32F offers a flexible networking solution with its 32-port 100/1000BASE-X SFP support, complemented by 4x10GBASE-X SFP+ and 2x40GBASE-X QSFP+ for high-density and high-speed connectivity options. However, its power supply rating at 350W AC may limit expansion capabilities for power-intensive modules or in scenarios demanding high power redundancy. Additionally, the device's backplane supports a 320 Gbps Virtual Chassis interconnect, enabling up to 10 units to function as a single logical device, which significantly enhances scalability and simplifies management for complex network architectures.


The Juniper EX4300-32F is a high-performance, flexible networking switch designed for high-density environments. It features 32 ports of 100/1000BASE-X SFP, along with four 10GBASE-X SFP+ ports and two 40GBASE-X QSFP+ ports, catering to a variety of network demands. The switch is powered by a 350 W AC power supply, ensuring reliable operation under various load conditions. Key specifications include: - Access Port Configuration: The device supports 32 ports of 100/1000BASE-X, allowing for a wide range of connectivity options. - 10GbE and 40GbE Ports: Initially, the switch includes four 10GbE ports and two 40GbE ports. With additional modules, it can be expanded to 12 10GbE ports and four 40GbE ports, offering ample bandwidth for data-intensive applications. - Power Supply Rating: The unit comes with a 350 W AC power supply, providing sufficient power for the switch and its operations. The EX4300-32F is designed with a backplane that supports a 320 Gbps Virtual Chassis interconnect. This feature allows the combination of up to 10 units as a single logical device, simplifying management and scaling of the network infrastructure. The switch's dimensions are 17.36 x 1.72 x 17.87 inches for the base unit, with slight variations when the power supply and front module are installed. For cooling, the system includes two field-replaceable fans with an airflow rating of PSU-7.5 cubic feet per minute, ensuring the hardware remains at optimal temperatures even under heavy load. The packet switching capacities reach up to 232 Gbps unidirectional or 464 Gbps bidirectional, with a system throughput of 345 Mpps, providing wire-speed performance across all ports. The system's GbE port density per system totals 46, which includes 32 host ports plus the additional 10GbE and 40GbE ports. This density supports a wide array of devices and connections, making the EX4300-32F suitable for diverse networking environments. Operating temperatures range from 32° F to 113° F, with storage temperatures spanning from -40° F to 158° F. The switch can operate at altitudes up to 10,000 feet, and can be stored at altitudes up to 16,000 feet, ensuring reliability in various environmental conditions. In summary, the Juniper EX4300-32F is a versatile, high-capacity switch that adapts to the needs of modern networks. Its expandable port configuration, coupled with the high throughput and packet switching capacities, makes it an ideal choice for organizations looking to scale their network infrastructure efficiently and effectively.


Part NumberJuniper EX4300-32F
Ports32x 1G/10G SFP+, 4x 10G SFP+, 2x 40G QSFP+
AC Power Supply Rating350 Watts
1G/10G Access Ports32
10G Ethernet Ports (expandable)4 (up to 12)
40G Ethernet Ports (expandable)2 (up to 4)
Power Supply Capacity350 Watts AC
Cooling MethodFront-to-back airflow
Virtual Chassis Backplane Speed320 Gbps
Dimensions without Power Supply17.36 x 1.72 x 17.87 inches
Dimensions with Power Supply17.36 x 1.72 x 19 inches
Dimensions with Power Supply and Module17.36 x 1.72 x 19.31 inches
Device Weight2.4 pounds
Fan Module Weight0.33 pounds
Replaceable Fans Quantity2
Power Supply Unit Airflow7.5 CFM
Switching Capacity232 Gbps (uni)/464 Gbps (bi)
Ethernet Port Count46 total
Throughput345 Mpps
Minimum Operating Temperature32°F
Maximum Operating Temperature113°F
Minimum Storage Temperature-40°F
Maximum Storage Temperature158°F
Operating AltitudeUp to 10,000 feet
Non-operating AltitudeUp to 16,000 feet

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