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by Juniper
Product Line: Juniper EX4300-48P
Product Type: Switch
Original price $0.00 - Original price $1,038.00
Original price
$0.00 - $1,038.00
Current price $1,038.00
Title: Used

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Product Description

The EX4300-48P is a Juniper network switch featuring 48 10/100/1000BASE-T PoE-plus ports and a 1100 W AC power supply, delivering up to 950 W of PoE+ power across the ports. It supports a 320 Gbps Virtual Chassis interconnect capability, allowing up to 10 units to function as a single device, and offers four 40GbE ports for high-speed uplinks. The switch has a packet switching capacity of 248 Gbps (unidirectional)/496 Gbps (bidirectional) and achieves a throughput of 369 Mpps, ensuring wire-speed performance across all ports.

Key Feature for the EX4300-48P

  • What is the total number of ports available on the 48-port 10/100/1000BASE-T PoE-plus + 1100 W AC PS switch?
    The switch offers a total of 56 GbE ports, comprising 48 host ports and four 40GbE ports, with the capability to add an optional four-port 1/10GbE uplink module.
  • How much PoE+ power does the device provide?
    The device provides 950 W of PoE+ power with a PoE budget of 900 W.
  • Can the switch be integrated into a Virtual Chassis configuration?
    Yes, the switch supports a 320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device.
  • What are the dimensions of the base unit without additional modules installed?
    The base unit measures 17.36 x 1.72 x 16.38 inches (44.1 x 4.37 x 41.6 cm).
  • What type of airflow does the switch support?
    The switch supports AFO (Front-to-back airflow) with the PSU providing 7.5 cubic feet per minute.
  • What is the maximum operational altitude for the switch?
    The switch can operate at altitudes up to 10,000 feet (3,049 m).
  • What is the switch's packet switching capacity?
    The switch has a packet switching capacity of 248 Gbps (unidirectional)/496 Gbps (bidirectional).
  • What is the system weight of the switch, and how much does the fan module weigh?
    The system weight is 2.4 lb (1.1 kg), and the fan module weighs 0.33 lb (0.15 kg).
  • What is the throughput capability of the switch?
    The switch is capable of a throughput of 369 Mpps (wire speed).
  • What are the operating and storage temperature ranges for the switch?
    The operating temperature range is 32° F to 113° F, and the storage temperature range is -40° F to 158° F.

Product Review

The Juniper EX4300-48P offers a high-capacity networking solution with its 48 PoE+ ports and a total PoE budget of 900W, supported by a 1100W AC power supply, catering well to environments requiring extensive power over Ethernet. Its capability to integrate up to 10 units through a 320 Gbps Virtual Chassis interconnect allows for scalable network designs, accommodating growing infrastructure needs efficiently. However, the unit's maximum operating temperature of 113°F may limit deployment in high-temperature environments, necessitating additional cooling solutions in certain scenarios.


The Juniper EX4300-48P is a switch designed for high-performance networking, featuring 48 10/100/1000BASE-T ports with PoE-plus capabilities and a power supply rated at 1100 W AC, of which 950 W is allocated for PoE+ power. This device is engineered to support demanding enterprise applications, providing both power and data connectivity across a wide range of devices such as VoIP phones, wireless access points, and surveillance cameras. The PoE budget for this model is 900 W, ensuring ample power for connected devices. In addition to its base ports, the EX4300-48P can expand its connectivity options through four 40GbE ports, facilitated by an optional module. This expansion capability allows for high-speed connections essential for aggregation or core layers in a network. The switch supports a virtual chassis configuration, enabling the interconnection of up to 10 units to function as a single logical device. This feature simplifies management and increases redundancy without compromising performance, thanks to a 320 Gbps backplane for virtual chassis interconnect. The physical dimensions of the base unit are 17.36 x 1.72 x 16.38 inches, with the depth extending to 18 inches when the power supply and front module are installed. Despite its capabilities, the system maintains a modest weight of 2.4 lb, with an additional 0.33 lb for the fan module. The unit is equipped with two field-replaceable fans, supporting a front-to-back airflow (AFO) to ensure efficient cooling under various operational conditions. Regarding performance, the EX4300-48P boasts a packet switching capacity of 248 Gbps unidirectional or 496 Gbps bidirectional, with a throughput of 369 Mpps. This level of performance guarantees wire-speed processing for all ports, ensuring no delay or bottleneck in data transmission across the network. The switch is designed to operate within temperatures ranging from 32° F to 113° F and can be stored in environments as cold as -40° F or as hot as 158° F. Its operational altitude is capped at 10,000 ft, with non-operating tolerance extending up to 16,000 ft, catering to a wide range of environmental conditions. Key Hardware Specifications:
  • 48 10/100/1000BASE-T PoE-plus ports with a 900 W PoE budget.
  • Four optional 40GbE ports for high-speed networking extensions.
  • 320 Gbps Virtual Chassis backplane capacity.
The Juniper EX4300-48P is a versatile and scalable solution for any enterprise network, offering a blend of performance, reliability, and expandability. Its comprehensive feature set ensures that it can meet the demands of a wide range of networking environments, making it an ideal choice for organizations looking to future-proof their network infrastructure.


Part Number EX4300-48P
Manufacturer Juniper
Configuration Type 48 x 10/100/1000BASE-T Ethernet ports with PoE+ support and a 1100W AC power supply (provides 950W for PoE+)
Ports 48 Ethernet ports supporting PoE / PoE+
Power Available for PoE 900 W
Maximum 40GbE Port Count 4 (with expansion module)
Power Supply Capacity 1100 W AC
Cooling Method Airflow from front to back
Interconnect Bandwidth 320 Gbps for Virtual Chassis configuration up to 10 units
Dimensions without Modules 17.36 x 1.72 x 16.38 inches (44.1 x 4.37 x 41.6 cm)
Dimensions with Power Supply 17.36 x 1.72 x 17.51 inches (44.1 x 4.37 x 44.47 cm)
Full Configuration Dimensions 17.36 x 1.72 x 18 inches (44.1 x 4.37 x 45.73 cm)
Weight of Base Unit 2.4 lb (1.1 kg)
Weight of Fan Module 0.33 lb (0.15 kg)
Number of Replaceable Fans 2
Fan Airflow Rating 7.5 cubic feet per minute
Switching Capacity 248 Gbps (unidirectional)/496 Gbps (bidirectional)
Maximum Ethernet Port Count 56 (48 base ports + 4 40GbE ports + optional 4-port 1/10GbE uplink module)
Throughput 369 Mpps
Minimum Operating Temperature 32° F
Maximum Operating Temperature 113° F
Minimum Storage Temperature -40° F
Maximum Storage Temperature 158° F
Maximum Operating Altitude 10,000 ft (3,049 m)
Maximum Non-operating Altitude 16,000 ft (4,877 m)

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