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