# Power Supply Unit HPE 865438-B21 800 W

**URL:** https://aio.lv/en/product--hp-enterprise-865438-b21--751479
**Data updated:** 2026-01-13 15:27 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** HP Enterprise
**Manufacturer code:** 865438-B21
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 218.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 180.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-865438-b21--751479

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The HPE 865438-B21 power supply unit delivers 800 W of total power with an AC input voltage range of 200 - 240 V. It boasts an impressive efficiency of 96%, ensuring optimal energy use. The unit comes in a sleek grey color, making it a perfect fit for various server environments. Designed for HP Enterprise systems, it guarantees reliability and performance for your critical applications.

## Long description

The HPE 865438-B21 800 W power supply unit provides a reliable 800 W of continuous output power for compatible HP Enterprise servers and systems. With an AC input range of 200–240 V and a rated efficiency of 96%, the unit is designed to deliver stable power with reduced energy losses. Its grey enclosure and compact form factor make it suitable for standard rack and blade server installations where consistent power delivery is required for business-critical workloads.
Advantages
The power supply offers high conversion efficiency of 96%, which reduces operating costs and heat generation compared with lower-efficiency units. The 800 W output supports demanding server configurations and provides sufficient headroom for peak loads. The unit’s design aligns with HP Enterprise system requirements to ensure compatibility and predictable behaviour under sustained operation. The grey finish and standardized form factor simplify replacement and maintenance in mixed hardware environments.
Suitable for
 Enterprise rack and blade servers requiring 800 W power modules
 Data centre equipment where high efficiency is needed to lower power consumption
 Server replacements and maintenance in HP Enterprise systems
 Deployments that demand consistent power delivery for continuous workloads
Key specifications
 Total output power: 800 W
 AC input voltage range: 200–240 V
 Efficiency: 96%
 Colour: Grey
 Form factor: Server power supply module (hot-swap capability depends on system chassis)
How to use
Install the unit into a compatible HP Enterprise server or chassis following the server manufacturer’s service manual and hot-swap procedures if supported by the system. Ensure the system is powered down or follow hot-swap safety steps before removing an existing module. Connect to a correctly rated AC supply within the 200–240 V range and verify connections are secure. After installation, monitor the server’s power management interface or system logs to confirm the new supply is recognised and functioning normally.
Usage recommendations
For reliable operation, use this power supply in environments with appropriate ventilation and within the recommended ambient temperature for the host server. Match the unit to compatible HP Enterprise chassis and follow HP’s hardware compatibility lists. If installing as a redundant module, ensure firmware and system configurations support the chosen redundancy scheme and perform verification tests after installation.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 800 W |
| Efficiency | 96 % |
| AC input voltage | 200 - 240 |

### Design

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

### Logistics data

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

## FAQ

### How much does the Power Supply Unit HPE 865438-B21 cost, and is it available for purchase?

The price is 218.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 89 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 16.07.2026 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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, 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

https://aio.lv/img/cache/product/751479/64776869_large.webp