NETGEAR APS550W-100NES 550W Modular Power Supply Unit

NETGEAR APS550W-100NES – 550W Modular Power Supply for M4300 PoE+ Switches

Overview

The NETGEAR APS550W-100NES is a 550W modular AC power supply designed for M4300 PoE+ switch PA models including the GSM4328PA (28-port) and GSM4352PA (52-port). It delivers 575W output power at both 110VAC and 220VAC input voltages, supporting PoE+ budgets up to 480W when used alone or 720W when two units run in Enhanced Power Sharing (EPS) mode. PA model switches ship with one APS550W pre-installed, and adding a second unit in the spare bay provides 1+1 power redundancy for high-availability branch office and campus edge deployments requiring continuous PoE delivery to IP phones, wireless APs, and security cameras.

Key Features

• 575W output at 110V/220V provides consistent PoE+ budget regardless of regional power infrastructure variations
• Hot-swappable modular design allows field replacement without disrupting PoE to connected devices when redundant PSU is installed
• EPS shared mode support combines two APS550W units to deliver 720W total PoE budget across 24 or 48 PoE+ ports
• Compatible with PA models only specifically engineered for GSM4328PA and GSM4352PA switches—not interchangeable with PB model APS1000W units

Technical Specifications