# Power Supply Unit HPE 865408R-B21 500W Grey

**URL:** https://aio.lv/en/product--hp-enterprise-865408r-b21--3217327
**Data updated:** 2025-12-29 10:49 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** HP Enterprise
**Manufacturer code:** 865408R-B21
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The HPE 865408R-B21 is a 500W power supply unit designed for servers. It features an AC input voltage range of 100-240V and boasts an efficiency rating of 94%, achieving 80 PLUS Platinum certification. Compatible with ProLiant DL360 Gen10+ servers, it ensures reliable power delivery. Dimensions are 68mm width, 40.4mm depth, and 225.3mm height, all in a sleek grey color.

## Long description

The HPE 865408R-B21 500W Grey power supply unit is a server-grade PSU compatible with HPE ProLiant DL360 Gen10+ systems. It delivers up to 500 W of total power with an AC input range of 100–240 V and an efficiency of 94% (80 PLUS Platinum), providing reliable power delivery in a compact, hot-pluggable form factor. Its reduced size compared with previous-generation HPE common slot supplies frees internal space for additional server components while supporting standard serviceability and spare-part strategies across ProLiant Gen10 and ProLiant 300 Gen9 families.
Advantages
This 500W HPE power supply offers high conversion efficiency (94%) under typical loads, which lowers server power draw and reduces waste in rack environments. The compact design is approximately 25% smaller than earlier HPE common slot units, enabling more internal room for upgrades. The unit supports tool-less, hot-plug access for fast replacement and maintenance, and its compatibility with multiple ProLiant generations simplifies spare management and data center operations.
Suitable for
HPE ProLiant DL360 Gen10+ server installations
Replacement or spare power supply for ProLiant Gen10 and ProLiant 300 Gen9 servers
Data center racks where high-efficiency 500W PSUs are required
Key specifications
Total power: 500 W
Efficiency: 94% (80 PLUS Platinum)
AC input voltage: 100–240 V
Form factor: compact hot-pluggable HPE flexible/common slot style
Dimensions (W×D×H): 68 mm × 40.4 mm × 225.3 mm
Weight: 1.36 kg
Product colour: Grey
How to use
Install the PSU into a compatible HPE ProLiant server chassis by sliding the unit into the designated power bay until the tool-less latch engages. Connect the AC mains cable to the PSU input rated for 100–240 V. For service or replacement, use the hot-plug procedure supported by the server: power down the appropriate supply if N+1 redundancy is not present, or simply remove and replace the unit while the server remains operational if redundancy allows. Verify that the server firmware and management tools recognize the new PSU after insertion.
Usage recommendations
Use this 500W HPE power supply as part of a matched set for redundant configurations where possible. Ensure adequate airflow in the chassis and monitor power and thermal metrics via HPE management utilities to maintain efficiency and longevity.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 500 W |
| Efficiency | 94 % |
| AC input voltage | 100 - 240 |

### Performance

| Feature | Value |
|---|---|
| Purpose | Server |
| 80 PLUS certification | 80 PLUS Platinum |
| Compatible products | ProLiant DL360 Gen10+ |

### Design

| Feature | Value |
|---|---|
| Product colour | Grey |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.36 kg |
| Height | 225.3 mm |
| Width | 68 mm |
| Depth | 40.4 mm |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HP Enterprise products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP Enterprise service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, 80 plus certification, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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