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Juniper Networks EX4100/EX3400 920W AC Power Supply, Front-to-Back Airflow

Basic Information

Part Number / Model	JPSU-920-AC-AFO
Verified Product Name	Juniper Networks EX4100/EX3400 920W AC Power Supply, Front-to-Back Airflow
Brand	Juniper Networks
Category	Power Supply
Publish Status	REVIEW
Image Status	Review PSU image
Official Manufacturer Link	https://apps.juniper.net/hct/model/JPSU-920-AC-AFO
Official Source Basis	Juniper HCT – exact SKU
Critical Correction / Remark	Official HCT explicitly lists EX4100 and EX3400; power cord ordered separately. Category: Power Supply.

Product Overview

The Juniper JPSU-920-AC-AFO is a 920W AC power supply module with front-to-back airflow (AFO) designed for Juniper network switches. This high-capacity hot-swappable power supply supports switches with extensive PoE+ power requirements and high-performance configurations.

The AFO airflow direction ensures proper cooling in data center rack deployments. The 920W capacity is suitable for high-density PoE+ switch configurations, supporting large numbers of powered devices such as access points, IP phones, and cameras.

The hot-swappable design allows for maintenance and replacement without disrupting network operations, making it ideal for mission-critical deployments.

Key Features

920W AC power output
Front-to-back airflow (AFO)
Hot-swappable design
Compatible with Juniper EX Series switches
AC input (100-240V)
Supports high-density PoE+ configurations
Redundant power supply capable

Technical Specifications

Power Output	920W
Input	AC 100-240V
Airflow	AFO (Front-to-Back)
Hot-swappable	Yes
Compatible Platform	Juniper EX Series and compatible switches