HP
HP 720480-B21 800W Flex Slot Power Supply
800W
Efficient Power Delivery for HP Servers The HP 800W Flex Slot -48VDC Power Supply Kit (720480-B21) provides reliable and efficient power to your HP server infrastructure. Power Output: 800W Input Voltage: -48VDC Form Factor: Flex Slot HP Part Number: 720480-B21
$58.47*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Efficient Power Delivery for HP Servers
The HP 800W Flex Slot -48VDC Power Supply Kit (720480-B21) provides reliable and efficient power to your HP server infrastructure.
- Power Output: 800W
- Input Voltage: -48VDC
- Form Factor: Flex Slot
- HP Part Number: 720480-B21
Key Features
HP 800W Flex Slot -48VDC Hot Plug Power Supply Kit - 48 V DC Input Voltage - Plug-in Module - 94% Efficiency - 800 W - TAA Compliance
Specifications
Brand
HP
Model
720480-B21
Power Output
800W
Form Factor
Flex Slot, Hot Plug
Input Voltage
-48 V DC
Efficiency
94%
Compliance
TAA
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View on Amazon →Pros & Cons
👍 Pros
- Provides a robust 800W power output, suitable for high-demand server environments
- Features a Flex Slot hot-plug design, allowing for easy installation and replacement without server downtime
- Operates with a -48 V DC input voltage, catering to specific data center power infrastructures
- Achieves 94% efficiency, contributing to reduced energy consumption and lower operational costs
- TAA compliant, meeting specific government procurement requirements for certain organizations
- Designed for reliability in server applications, ensuring consistent power delivery
👎 Cons
- The -48 V DC input voltage is a specialized requirement, limiting its use to data centers with compatible power systems
- Compatibility is restricted to HP servers designed to utilize Flex Slot power supplies, not a universal PSU
- The 800W output, while substantial, may not be sufficient for the most power-hungry server configurations or future upgrades
- Requires a specific server chassis that supports Flex Slot architecture for proper installation and hot-plug functionality
- As a server-specific component, it is not suitable for standard desktop PCs or other non-server applications
Frequently Asked Questions
What is the power output of the HP 720480-B21 power supply?
The HP 720480-B21 power supply delivers an 800W output, designed for demanding server operations.
What kind of input voltage does this power supply require?
This power supply requires a -48 V DC input voltage, which is typical for specific data center environments.
What does "Flex Slot Hot Plug" mean for this power supply?
Flex Slot Hot Plug indicates that the power supply can be installed or replaced in a compatible HP server without needing to power down the system, ensuring continuous operation.
What is the efficiency rating of the HP 720480-B21?
This power supply boasts a 94% efficiency rating, helping to minimize energy waste and operational costs.
Is this power supply TAA compliant?
Yes, the HP 720480-B21 800W Flex Slot Power Supply is TAA (Trade Agreements Act) compliant.
Is this power supply suitable for standard desktop computers?
No, this is a specialized power supply designed for HP servers with Flex Slot architecture and is not compatible with standard desktop computers.
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