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832938064614
Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches
832938064614

Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches

4.6(149 ratings)

Best price now

$104.36at LambdaTekChecked 41 min ago

59% under what the other stores charge

Compared across 12 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Best price today: $104.36 at LambdaTek (checked Nov 11, 2026).
  • Checked at 12 stores.

Our take on the Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches

The JPSU-350-AC-AFI is a 350-watt AC power supply module for Juniper EX4300 Series switches. It is the front-to-back airflow variant, pulling cool air in at the port side and exhausting at the rear, so it matches the rest of a front-to-back cooled rack. It is a hot-swappable field-replaceable unit, so a failed supply can be swapped without powering down the switch. Buyers choose it to add redundancy or to replace a failed unit, and the main thing to get right is matching the airflow direction to the other supplies and fans in the chassis.

Best forEX4300 owners adding a redundant second supplyReplacing a failed supply in a front-to-back airflow chassisData center racks cooled front to backSpare parts stock for network maintenance
Pros
  • Hot-swappable, so no switch downtime for a swap
  • 350 W output covers typical EX4300 access deployments
  • Front-to-back airflow matches standard rack cooling
  • Genuine Juniper part with correct connector and fit
Cons
  • Only fits EX4300 Series switches
  • Airflow direction must match the other supplies and fans
  • No DC option in this part number
  • Older platform, so parts are increasingly sourced from resellers

Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches prices at every store

  • LambdaTekNew

    In stock

    $104.36Checked 41 min ago
    Visit LambdaTek
  • LinknewnetPre-owned

    In stock

    $153.00Free shippingChecked 41 min ago
    Visit Linknewnet
  • NetworkEquipment.netNew

    In stock

    $149.99+ $21.95 shippingChecked 41 min ago
    Visit NetworkEquipment.net
  • Smithweb.comNew

    In stock

    $180.00Free shippingChecked 41 min ago
    Visit Smithweb.com
  • serverblink.comNew

    In stock

    $100.00+ $100.00 shippingChecked 41 min ago
    Visit serverblink.com
  • Memory ClearanceNew

    In stock

    $232.65Free shippingChecked 41 min ago
    Visit Memory Clearance
  • Asterit NetworksNew

    In stock

    $255.00Free shippingChecked 41 min ago
    Visit Asterit Networks
  • Computer World ProRefurbished

    In stock

    $282.07Free shippingChecked 41 min ago
    Visit Computer World Pro
  • eBayNew

    In stockSold by dedicatednetwork

    $300.00Free shippingChecked 41 min ago
    Visit eBay
  • Router-switch.comNew

    In stock

    $255.00+ $55.00 shippingChecked 41 min ago
    Visit Router-switch.com
  • IT Hardware HubNew

    In stock

    $550.55+ $29.99 shippingChecked 41 min ago
    Visit IT Hardware Hub
  • GotodirectNew

    In stock

    $583.53Checked 41 min ago
    Visit Gotodirect

Store links may earn us a commission.

Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches price history

Lowest price we've seen: $100.00 on Nov 11 at serverblink.com. Tracked across 9 stores since Nov 11.

What reviewers say

  • 4.6 / 5149 ratings

Ratings are strong, and the feedback that exists centers on units arriving as genuine Juniper parts that slot in and power up without issues. Buyers mainly use it for redundancy or to replace a failed supply in an EX4300 stack.

What people mention
  • FitPraisedBuyers say it seats correctly in the EX4300 power bay and powers up without configuration.
  • ReliabilityPraisedOwners report it running as a stable redundant supply in switch stacks.
  • AirflowMixedThe front-to-back direction suits standard racks, but buyers warn it must match the other supplies and fans.

About the Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches

This is a Juniper JPSU-350-AC-AFI AC power supply rated at 350 watts. It is made for EX4300 Series switches.

The power supply has an in-side airflow intake.

Model
JPSU-350-AC-AFI
Power
350 watts
Input type
AC
Airflow
In-side airflow intake
Compatibility
Juniper EX4300 Series switches

Questions and answers

Which EX4300 models does this supply fit?
It fits the EX4300 Series switch chassis that take the 350 W AC supply bay, including the 24-port and 48-port models. Check your chassis model and current supply part number before ordering.
What does AFI airflow mean?
AFI is front-to-back airflow: air enters at the port side and exits at the rear. Match it to the other supplies and fan trays in the same chassis, or cooling will fight itself.
Can I add it as a second supply for redundancy?
Yes. The EX4300 supports dual supplies, and a second unit gives 1+1 redundancy so the switch keeps running if one fails. It is hot-swappable, so you can install it with the switch powered on.
Is this the same as the AFO version?
No. AFO is back-to-front airflow. The two are not interchangeable in a chassis set up for the opposite direction, so order the one that matches your existing airflow.
What is in the box?
You get the power supply module itself. The power cord is ordered separately and depends on your region and outlet type.
Is it worth it over a third-party supply?
A genuine Juniper unit guarantees correct fit, airflow and switch recognition. Third-party units can work, but compatibility and warranty support are the trade-off.
Where is the Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches cheapest?
At LambdaTek, for $104.36, 59% under what the other stores charge, as of our latest check.
What do buyers say about the Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches?
Rated 4.6 out of 5 from 149 ratings.
Where can I buy the Juniper JPSU-350-AC-AFI 350-Watts In-Side Airflow Intake AC Power Supply for EX4300 Series Switches?
12 stores we checked sell it, including Gotodirect, LambdaTek, serverblink.com, NetworkEquipment.net, Linknewnet.