# Power Supply Unit HPE 865408-B21 500W

**URL:** https://aio.lv/en/product--hp-enterprise-865408-b21-rfb--3966540
**Data updated:** 2025-12-01 23:23 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** HP Enterprise
**Manufacturer code:** 865408-B21-RFB
**EAN:** 5704174142515
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-865408-b21-rfb--3966540

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The HPE 865408-B21 is a 500W power supply unit designed for servers, featuring an AC input voltage range of 100-240V and 80 PLUS Platinum certification for energy efficiency. Compatible with ProLiant DL360 Gen10+ servers, it ensures reliable performance with a compact design (190.5mm width, 323.8mm depth, 101.6mm height). Ideal for enhancing server reliability and reducing energy costs.

## Long description

HPE Flexible Slot Power Supplies provide up to 96% efficiency with 80 Plus Titanium-certified options to reduce server power consumption and lower energy waste in the data center. The power supply has a compact form factor that is 25% smaller than previous HPE Common Slot generations, freeing space for additional server options and supporting faster serviceability with tool-less, hot-plug access. These power supplies are compatible with HPE ProLiant Gen10, Gen10 Plus, and Gen11 servers, select HPE Apollo Gen10 and Gen10 Plus systems, and HPE Alletra 4100 storage servers, which helps simplify spare strategies and reduce overall data center costs.
Advantages
High efficiency (up to 96%) and 80 Plus Titanium-certified variants reduce power draw and energy losses. The reduced physical size (25% smaller) allows installation of more server options and can improve overall server performance. Tool-less hot-plug access speeds up maintenance and replacement without special tools. Broad compatibility across HPE ProLiant, selected Apollo systems and Alletra 4100 storage servers streamlines spare parts management and lowers operating expenses.
Key specifications
Efficiency: up to 96%
Certification: 80 Plus Titanium (select models)
Form factor: 25% smaller than previous HPE Common Slot power supplies
Serviceability: tool-less hot-plug access
Compatibility: HPE ProLiant Gen10, Gen10 Plus, Gen11; select HPE Apollo Gen10 & Gen10 Plus; HPE Alletra 4100
How to use
Install the HPE Flexible Slot Power Supply in the designated power bay of a supported HPE server or storage system following the server manufacturer’s installation instructions. Use the tool-less hot-plug mechanism to insert or remove the unit while the system supports hot-swap operations, ensuring the system state and load allow for safe replacement. Verify firmware and management settings as required by your server platform and follow your data center’s power management and safety procedures.
Recommendations
Choose the 80 Plus Titanium-certified models when maximum energy efficiency is a priority. Maintain a compatible spare inventory for ProLiant, selected Apollo, and Alletra 4100 systems to minimize downtime. Confirm system compatibility and follow HPE installation guidance to ensure safe hot-plug operations and optimal performance.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 500 W |
| Efficiency | 94 % |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |

### Performance

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 101.6 mm |
| Width | 190.5 mm |
| Depth | 323.8 mm |

## FAQ

### How much does the Power Supply Unit 865408-B21 cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### 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, 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

https://aio.lv/img/cache/product/3966540/64662093_large.webp