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Townsend Networks
EX4300-32F Juniper Switch, Front-to-Back, Refurbished, 32x 1GbE SFP and 2x 40GbE QSFP+

EX4300-32F Juniper Switch, Front-to-Back, Refurbished, 32x 1GbE SFP and 2x 40GbE QSFP+

Condition
Refurbished, tested & guaranteed
WARRANTY & RETURNS
EX4300-32F has a 3-year warranty and a 30-day return policy. DOA units are replaced or refunded. Full terms are on the warranty page and the refund policy.
Availability
In stock

A firm price comes back, typically the same business day. Prefer a PO or wire? We take those too. Just ask.

The Juniper EX4300-32F is a switch from the Juniper EX4300 family with 32 ports of 1GbE SFP, 2 ports of 40GbE QSFP+, front-to-back airflow and AC power. It has 38 ports in all. It runs Junos OS. This unit is refurbished (used): inspected, powered on and functionally tested by Townsend Networks technicians before listing. One switch per order, with a rack-mount kit and the power cable(s) to match.

Other versions

  • EX4300-32F-DC

    Refurbished, tested & guaranteedAirflow: Front-to-backIn stock

    $800
HOW IT DIFFERS
EX4300-32F is the fiber-first, AC-powered EX4300: 32 100/1000BASE-X SFP ports, 4 10GBASE-X SFP+ ports and 2 40GBASE-X QSFP+ ports on a 350 W AC power supply, with optics sold separately. Its sister EX4300-32F-DC has the same port list on a 550 W DC supply, so the choice between the two is the power feed.
Model
EX4300-32F
Network Ports
32 × 1GbE
Connectors
SFP, SFP+, QSFP+
Type
Switch
Condition
Refurbished, tested & guaranteed

Technical details

BrandJuniper
FamilyEX4300
Uplinks2x 40GbE QSFP+, 4x 10GbE SFP+
Total ports38
Fastest port40GbE
Operating systemJunos OS
Rack units1U
AirflowFront-to-back
Power inputAC
Throughput464 Gbps switching, 345 Mpps forwarding
Power suppliesone AC power supply installed in the rear panel; DC power not supported

Juniper datasheet

Testing process

End of sale and support

ModelAnnouncedEnd of saleEnd of supportNotice
Juniper EX4300-32FJuniper notice

Juniper end-of-life notice TSB105633. End of engineering is 2027-03-31.

Questions about the Juniper EX4300 family

What ports does the EX4300-32F have?
The EX4300-32F has 32 × 1GbE, with uplinks of 2x 40GbE QSFP+, 4x 10GbE SFP+ and 38 data ports in all.
What is the throughput of the EX4300-32F?
The EX4300-32F has a throughput of 464 Gbps switching, 345 Mpps forwarding.
Which way does the air flow on the EX4300-32F?
The airflow of the EX4300-32F is front-to-back.
What power does the EX4300-32F use?
The EX4300-32F uses AC.
How much rack space does the EX4300-32F take?
The EX4300-32F takes 1U of rack space.
What software does the EX4300-32F run?
The EX4300-32F runs Junos OS.
Is the Juniper EX4300 end of life?
Juniper's EX Series hardware milestones page shows three notices for the models on this page. The 24- and 48-port T and P models, including the AFI, DC and TAA versions: end of life announced 24 June 2022, last order 31 March 2024, end of support 31 March 2029. The EX4300-32F and EX4300-32F-DC (TSB105633): last order 31 March 2026, end of support 31 March 2029. The EX4300-48MP (TSB109284, announced 29 June 2026): last order 29 December 2026, end of support 29 December 2031.
What do AFI and AFO mean on an EX4300?
Airflow direction. Juniper labels fans and power supplies AIR IN (AFI) for back-to-front airflow and AIR OUT (AFO) for front-to-back airflow. The EX4300-48T-AFI ships with AFI fan modules and power supply; the standard EX4300-48T ships AFO. Match the airflow to the hot and cold aisles of the rack it goes into.
Can EX4300 switches be stacked, and with what?
Up to 10 EX4300 switches form a Virtual Chassis. The built-in QSFP+ ports are set up as Virtual Chassis ports by default and can be reconfigured as network ports. An EX4300 can also be a line card member of a mixed Virtual Chassis with EX4600 switches, where the EX4600 takes the primary and backup roles.
Which uplink modules fit the EX4300?
The 24- and 48-port T and P models take the 4-port 10GbE SFP+ module EX-UM-4X4SFP. The EX4300-32F takes the 2-port 40GbE QSFP+ module EX-UM-2QSFP or the 8-port 10GbE SFP+ module EX-UM-8X8SFP. The EX4300-48MP takes the EX-UM-2QSFP-MR (two 40GbE or 100GbE ports) or the EX-UM-4SFPP-MR (four 1GbE or 10GbE ports). A switch listing does not include an uplink module unless it says so.
What condition and warranty come with a Juniper EX4300 switch from Townsend?
Each listing prints its own condition. Units sold as new, refurbished or used are bench tested before they are listed: every port and module slot is checked and the previous owner's configuration is erased. They are covered by the Townsend warranty from the date of delivery; if the hardware fails in normal use we repair it or replace it with a tested unit, and the length and terms are on our warranty page. Unused hardware can be returned within 30 days of delivery. Juniper software licences and support contracts are not part of our warranty.

Juniper EX4300-32F / 32x 100M/1GbE SFP + 4x 10GbE SFP+ + 2x 40GbE QSFP+ switch, AC power, front-to-back airflow

WHAT'S INCLUDED

One (1) Juniper EX4300-32F. Includes a rack-mount kit and the power cable(s) to match the switch.

CONDITION & TESTING

Condition: Refurbished, Tested & Guaranteed EX4300-32F was tested by Townsend Networks technicians before listing. The test process is on the testing process.

Selling your Juniper EX4300-32F? We buy used network gear.

Questions about the EX4300-32F? Call 415-626-4231 or email sales@townsendnetworks.com.

Have a question about the EX4300-32F?

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