Cisco 341-0094-04 ASA 5540 AC PSU Power Supply Unit Internal

Overview

The Cisco ASA 5540 AC PSU Power Supply Unit Internal (part number 341-0094-04) is a high-performance, hot-swap power module designed specifically for the ASA 5540 security appliance. Engineered to deliver reliable, continuous power, this internal power supply helps maintain optimal firewall throughput and ensures that critical network security services remain available even during power fluctuations or component failures.

Key Features

• Hot-swap capability for uninterrupted operation and easy replacement
• High efficiency conversion to reduce energy consumption and heat output
• Built-in overload and short-circuit protection for enhanced safety
• Compatible exclusively with Cisco ASA 5540 chassis
• Compact internal form factor that fits within the existing power bay

Technical Specifications

• Input voltage: 100-240 VAC, 50/60 Hz
• Output power: 550 watts continuous
• Power factor: 0.95 or higher
• Operating temperature range: 0 deg to 40 deg C (32 deg to 104 deg F)
• Storage temperature range: -40 deg to 70 deg C (-40 deg to 158 deg F)
• Dimensions (L x W x H): 4.5 in x 3.2 in x 1.1 in
• Weight: approximately 2.5 lbs
• Connector type: IEC C13 inlet with lockable screw

Applications

This power supply unit is ideal for enterprises, data centers, and service provider environments that rely on the Cisco ASA 5540 for firewall, VPN, and intrusion prevention services. It is especially suited for:

• Mission-critical network segments where downtime must be minimized
• High-density security deployments requiring efficient power utilization
• Scenarios where hot-swap maintenance is required to keep security policies active
• Installations that demand compliance with energy efficiency standards

By choosing the Cisco ASA 5540 AC PSU, customers gain a dependable power source that supports continuous security operations and helps protect valuable network resources.