---
product_id: 24507254
title: "HP Hot-Plug/Redundant Plug-in Module Proprietary 800 Power Supply 720479-B21"
brand: "hp"
price: "£88.57"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/24507254-hp-hot-plug-redundant-plug-in-module-proprietary-800-power
store_origin: GB
region: United Kingdom
---

# 80 PLUS Platinum Efficiency Compact 14.75x7.25x5.75 in Hot-Plug Redundancy HP Hot-Plug/Redundant Plug-in Module Proprietary 800 Power Supply 720479-B21

**Brand:** hp
**Price:** £88.57
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your data center like a pro—efficiency meets resilience!

## Quick Answers

- **What is this?** HP Hot-Plug/Redundant Plug-in Module Proprietary 800 Power Supply 720479-B21 by hp
- **How much does it cost?** £88.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/24507254-hp-hot-plug-redundant-plug-in-module-proprietary-800-power)

## Best For

- hp enthusiasts

## Why This Product

- Trusted hp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart Design:** Compact footprint fits perfectly in dense data center racks, optimizing your infrastructure.
- • **Reliable HP Engineering:** Backed by Hewlett Packard’s trusted quality for mission-critical performance.
- • **Platinum Power Efficiency:** Maximize energy savings with 80 PLUS Platinum certification—cut costs and carbon footprint.
- • **Future-Proof Compatibility:** Flex Slot compliance ensures smooth integration with evolving data center setups.
- • **Seamless Hot-Swap Capability:** Maintain uptime effortlessly with hot-plug redundancy—no downtime, no disruption.

## Overview

The HP 720479-B21 is a high-efficiency, 80 PLUS Platinum certified power supply module designed for Flex Slot data centers. Weighing just over 2 pounds and measuring 14.75 x 7.25 x 5.75 inches, it supports hot-plug redundancy to ensure zero downtime and seamless maintenance. Engineered by Hewlett Packard, it delivers reliable, energy-saving power to optimize your IT infrastructure.

## Description

How do you improve data center power efficiency without impacting IT performance? HP Flexible Slot Power Supplies provide up to 94% power efficiency with 80Plus Platinum-certified power supplies that lower server power requirements and reduce power waste in your data center. Flex Slot Power Supplies have a form factor that is 25% smaller than previous generation power supplies, providing more space to add additional server options and improve the performance of your servers. Flex Slot Power Supplies provide fast, tool-less hot plug access to server power supplies for greater serviceability and are supported across the entire ProLiant DL300 Gen9 Server family, simplifying your spares strategy and further reducing data center costs. Are you currently using or interested in the HP Power Discovery Services solution? Support for Power Discovery Services can be added to all ProLiant DL300 Gen9 Servers with the Flex Slot 1400W Platinum Plus Power Supply option.

## Features

- Improve Data Center Efficiency Without Impacting IT Performance
- Specification Compliance: Flex Slot
- 80 PLUS Certification: 80 PLUS Platinum

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HP |
| Series | 720479-B21 |
| Item model number | 720479-B21 |
| Item Weight | 2.01 pounds |
| Product Dimensions | 14.75 x 7.25 x 5.75 inches |
| Item Dimensions  LxWxH | 14.75 x 7.25 x 5.75 inches |
| Color | Silver |
| Voltage | 240 Volts |
| Batteries | 1 A batteries required. |
| Manufacturer | Hewlett Packard Office |
| ASIN | B00NKABUKQ |
| Is Discontinued By Manufacturer | No |
| Date First Available | September 16, 2014 |

## Product Details

- **Model Name:** 720479-B21
- **Brand:** HP
- **Compatible Devices:** server
- **Connector Type:** Proprietary
- **Output Wattage:** 800
- **Form Factor:** PROPRIETARY
- **Wattage:** 800 watts
- **Cooling Method:** Air
- **Item dimensions L x W x H:** 14.75 x 7.25 x 5.75 inches
- **Item Weight:** 910 Grams

## Images

![HP Hot-Plug/Redundant Plug-in Module Proprietary 800 Power Supply 720479-B21 - Image 1](https://m.media-amazon.com/images/I/61voicN9hhL.jpg)

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**Shop now:** [https://www.desertcart.co.uk/products/24507254-hp-hot-plug-redundant-plug-in-module-proprietary-800-power](https://www.desertcart.co.uk/products/24507254-hp-hot-plug-redundant-plug-in-module-proprietary-800-power)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-22*