Skip to content


by Juniper
Product Line: Juniper EX3400-48T
Product Type: Switch
Sold out
Original price $0.00 - Original price $2,596.00
Original price
$0.00 - $2,596.00
Current price $0.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The EX3400-48T Juniper switch features 48 10/100/1000BASE-T ports, along with 4 1/10GbE SFP/SFP+ uplinks, and 2 40GbE QSFP+ ports for high-capacity connectivity. It supports a backplane capacity of 160 Gbps when using QSFP+ ports, or 80 Gbps with SFP+ ports, and offers a packet-switching capacity of 168 Gbps unidirectional and 336 Gbps bidirectional. Designed for efficiency, it comes with front-to-back airflow, a single AC power supply (JPSU-150-AC-AFO) rated at 150W, and operates within a temperature range of 32° F to 113° F.

Key Feature for the EX340048T

  • What is the total number of 10/100/1000BASE-T ports available on the EX3400?
    The EX3400 has a total of 48 10/100/1000BASE-T ports.
  • How many uplink ports does the part have and what types are they?
    It includes four 1/10GbE SFP+/SFP ports and two 40GbE QSFP+ ports as uplinks.
  • What type of power supply is included with the EX3400, and what is its rating?
    The EX3400 comes with one AC power supply unit, rated at 150W (JPSU-150-AC-AFO).
  • Can you describe the airflow direction and the options for fans within the device?
    The device features front-to-back airflow with redundant fan modules.
  • What are the dimensions of the base unit of the EX3400?
    The base unit dimensions are 17.36 x 1.72 x 13.78 inches (44.1 x 4.37 x 35 cm).
  • What is the maximum power consumption of this model?
    The maximum system power consumption is 120W.
  • What is the backplane capacity of the EX3400 when using QSFP+ ports?
    With QSFP+ ports, the backplane capacity is 160 Gbps.
  • What are the packet-switching capacities of the EX3400?
    The packet-switching capacities are 168 Gbps unidirectional and 336 Gbps bidirectional.
  • What is the operating temperature range for the EX3400?
    The operating temperature range is from 32° F to 113° F.
  • How does the EX3400 handle virtual chassis interconnects?
    It uses Virtual Chassis technology to link multiple units together for simplified management.

Product Review

The Juniper EX3400-48T offers a comprehensive port configuration, including 48 10/100/1000BASE-T ports, along with four 1/10GbE SFP/SFP+ and two 40GbE QSFP+ uplinks, catering to diverse networking requirements. However, its power consumption peaks at 120 watts, which might be a consideration for energy-conscious deployments. Additionally, its front-to-back airflow design and redundant fans ensure efficient cooling, crucial for maintaining system performance in high-density rack environments.


The Juniper EX3400-48T is designed for high-performance networking, offering a comprehensive solution for data center and enterprise networks. It features 48 10/100/1000BASE-T ports along with advanced uplink capabilities, including four 1/10GbE SFP/SFP+ ports and two 40GbE QSFP+ ports, accommodating a wide range of networking requirements. This switch supports a maximum system power consumption of 120 watts and comes with a 150-watt AC power supply unit (JPSU-150-AC-AFO), ensuring efficient power usage. With a base unit dimension of 17.36 x 1.72 x 13.78 inches, which extends to 17.36 x 1.72 x 15.19 inches with the power supply and front module installed, the EX3400-48T is designed to fit in standard networking racks while providing easy access for maintenance and upgrades. The system's total weight is 1.43 pounds, with an additional 0.16 pounds for the fan module, highlighting its lightweight design for easier handling and installation. The switch's backplane supports a capacity of 160 Gbps when using QSFP+ ports or 80 Gbps with SFP+ ports, enabling high-speed data transfer and efficient packet switching. This capability is further enhanced by the switch's packet-switching capacities of 168 Gbps unidirectional or 336 Gbps bidirectional, facilitating rapid data flow across the network. For environmental durability, the EX3400-48T operates within a temperature range of 32°F to 113°F and can be stored in temperatures from -40°F to 158°F. It is designed to function at altitudes up to 10,000 feet when operating and 16,000 feet during non-operational phases, with a relative humidity tolerance of 10% to 85% (noncondensing), ensuring reliability across various environmental conditions. Key hardware features include: -
  • Redundant fans and front-to-back airflow for consistent cooling and operational reliability.
  • An included AC power supply unit, ensuring out-of-the-box power compatibility and efficiency.
  • A flexible uplink configuration offering both 1/10GbE and 40GbE connectivity options for scalable network design.
The EX3400-48T's design prioritizes both performance and environmental adaptability, making it suitable for demanding network environments. It offers a high GbE port density per system, totaling 54 ports when combining the 48 host ports with the uplink options. This switch is engineered for scalability, allowing for seamless integration into existing networks while providing the capacity for future expansion. Its robust packet-switching capabilities ensure that data flows efficiently through the network, minimizing bottlenecks and enhancing overall network performance. Overall, the Juniper EX3400-48T stands out as a versatile and efficient networking solution, catering to a broad spectrum of data center and enterprise networking needs. Its comprehensive feature set, combined with its environmental resilience, makes it a reliable choice for organizations looking to optimize their network infrastructure for both current and future demands.


Model Number EX3400-48T
Manufacturer Juniper
Ports 48 x 10/100/1000BASE-T, 4 x 1/10GbE SFP/SFP+, 2 x 40GbE QSFP+
Cooling Redundant fans, airflow from front to back
Power Supply Unit 1 AC JPSU-150-AC-AFO included
Base-T Ports Count 48
Uplink Interfaces 4 10GbE/GbE SFP+/SFP, 2 40GbE QSFP+
Airflow Direction Front to back
Power Supply Category AC
Maximum Power Usage 120 Watts
Power Unit Capacity 150 Watts
Dimensions without PSU 17.36 x 1.72 x 13.78 inches (44.1 x 4.37 x 35 cm)
Dimensions with PSU 17.36 x 1.72 x 15.05 inches (44.1 x 4.37 x 38.24 cm)
Dimensions with PSU and Front Module 17.36 x 1.72 x 15.19 inches (44.1 x 4.37 x 38.58 cm)
Backplane Speed 160 Gbps with QSFP+ or 80 Gbps with SFP+
Virtual Chassis Capability Supported
Weight 1.43 pounds (0.65 kg)
Fan Module Weight 0.16 pounds (0.07 kg)
Port Density 54 (48 base ports + 6 uplink ports)
Switching Capacity 168 Gbps unidirectional, 336 Gbps bidirectional
Min Operating Temperature 32°F (0°C)
Max Operating Temperature 113°F (45°C)
Min Storage Temperature -40°F (-40°C)
Max Storage Temperature 158°F (70°C)
Max Operating Altitude 10,000 ft (3,049 m)
Max Non-operating Altitude 16,000 ft (4,877 m)
Operating Humidity 10% to 85% non-condensing

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare