# HPE 865414R-B21 800W Flex ATX Server Power Supply Unit Platinum

**URL:** https://aio.lv/en/product--hp-865414r-b21--12492568
**Data updated:** 2026-06-02 20:07 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** HP
**Manufacturer code:** 865414R-B21
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 188.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 155.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-865414r-b21--12492568

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The HPE 865414R-B21 is a high-efficiency 800W server power supply unit featuring a Flex ATX form factor. With 80 PLUS Platinum certification and 94% efficiency, it ensures reliable power delivery for server environments. It supports an AC input voltage range of 100-240V and utilizes active cooling to maintain optimal operating temperatures. This unit is designed for professional server infrastructure requiring consistent and stable power performance.

## Long description

The HPE 865414R-B21 is a high-performance 800W server power supply unit designed to provide reliable and efficient energy for professional server environments. Featuring the Flex ATX form factor, this unit is engineered to optimize space within server chassis while maintaining consistent power delivery. With 80 PLUS Platinum certification, it achieves up to 94% efficiency, helping to reduce energy waste and lower operational costs in data centers.
Advantages
This power supply unit offers significant benefits for enterprise IT infrastructure, primarily through its high energy efficiency which minimizes power consumption and heat generation. The compact Flex ATX design allows for better airflow and more internal space for additional server components. Furthermore, the unit supports hot-plug functionality, enabling quick and tool-less replacement to ensure maximum uptime and simplified maintenance for server administrators.
Suitable for
HPE ProLiant Gen10 server series
HPE ProLiant 300 Gen9 server series
Enterprise data centers requiring high-efficiency power
Environments needing reliable, continuous server operation
This power supply is not suitable for standard desktop computers or consumer-grade hardware due to its specific Flex ATX form factor and server-grade electrical connectors. It is also not intended for use in systems that do not support the HPE Flexible Slot power interface.
Key specifications
Power output: 800 W
Input voltage: 100 - 240 V AC
Efficiency rating: 80 PLUS Platinum (up to 94%)
Form factor: Flex ATX
Cooling system: Active cooling
Dimensions: 68 mm x 40.4 mm x 225.3 mm
To install the HPE 865414R-B21, ensure the server is powered down or that the system supports hot-swapping if applicable. Slide the unit into the designated power supply bay until the locking mechanism engages securely. Connect the appropriate power cable to the input port and verify that the server recognizes the power supply through the management interface.
What to consider before purchase
Verify compatibility with your specific server model and generation
Ensure your server chassis supports the Flex ATX form factor
Check that your power distribution unit (PDU) matches the required input voltage
For optimal performance and longevity, ensure the server environment is kept within recommended temperature ranges and that the active cooling vents remain unobstructed by cables or dust accumulation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 1.809 kg |
| Height | 225.3 mm |
| Width | 68 mm |
| Depth | 40.4 mm |
| Product colour | Grey |
| Illumination | No |
| Purpose | Server |
| Efficiency | 94 % |
| Cooling type | Active |
| 80 PLUS certification | 80 PLUS Platinum |
| AC input voltage | 100 - 240 |
| Total power | 800 W |
| Harmonized System (HS) code | 84733020 |
| Power supply unit (PSU) form factor | Flex ATX |

## FAQ

### How much does the HPE 865414R-B21 800W Flex ATX Server Power Supply cost, and is it available for purchase?

The price is 188.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 13.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can HPE 865414R-B21 800W Flex ATX Server Power Supply be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 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 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

## Image

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