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Rectangular metal fan module with side vents and rear label

HPE Juniper Networking

HPE Juniper Networking EX3400 Fan Module Back-To-Front Airflow

SKU CH-VSTM-C84AD

Fan module provides back-to-front cooling for EX3400-24P, EX3400-48P, EX3400-24T and EX3400-48T switches

  • Keeps switches cool with back-to-front airflow design
  • Reduces noise by running at moderate speed normally
  • Automatically increases fan speed when chassis temperature rises
  • Compatible with EX3400-24P, EX3400-48P, EX3400-24T, EX3400-48T models
  • New factory-sealed module with part number EX3400-FAN-AFI

Fan Module for EX3400 Switches

This Juniper Networks fan module provides back-to-front airflow for the EX3400 series. It pulls cool air into the chassis and exhausts heat from the front panel. The unit suits network administrators deploying EX3400-24P, EX3400-48P, EX3400-24T, or EX3400-48T switches in standard hot-aisle or cold-aisle layouts.

Replacement Cooling Unit

The module replaces a failed or missing fan tray in compatible EX3400 switches to restore proper thermal management. A swap is warranted when the original unit develops bearing noise, reports a fault LED, or cannot spin up under rising internal temperatures. It is not suited for front-to-back airflow racks or non-EX3400 chassis.

Chassis Integration

The fan unit slides into the dedicated slot on supported EX3400 models without tools. Temperature sensors in the chassis govern automatic speed control, ramping rotation only when heat loads demand it. This behaviour keeps acoustic output low during typical operation while freeing rack space otherwise needed for external cooling ductwork.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $96.99
Cheaper than about 71% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Product lineEX3400

Questions about this item

Does the EX3400-FAN-AFI module fit the EX3400-24T and EX3400-48P switches?

Yes, this fan module is compatible with the EX3400-24T, EX3400-48T, EX3400-24P and EX3400-48P models.

How do I install the fan module so the back-to-front airflow works correctly?

Slide the module into the chassis slot until the latch clicks; the unit pulls cool air from the rear and exhausts it out the front.

When should I replace the EX3400-FAN-AFI unit?

Replace the module if the fans run constantly at high speed, produce unusual noise, or the chassis temperature sensor reports overheating.

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