# Power Supply Unit HPE 720478-B21 500W Grey

**URL:** https://aio.lv/en/product--hp-enterprise-720478-b21--252661
**Data updated:** 2025-11-30 23:33 (EET)
**Category:** Server Parts & Components
**Manufacturer:** HP Enterprise
**Manufacturer code:** 720478-B21
**EAN:** 4514953601017
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-720478-b21--252661

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The HPE 720478-B21 is a 500W power supply unit designed for servers, featuring an AC input voltage range of 100-240V and an input frequency of 50-60Hz. It is 80 PLUS Platinum certified, ensuring high efficiency. The unit has a Flex Slot power supply type and comes in a compact grey design with dimensions of 68mm width, 40.4mm depth, and 225.3mm height, making it suitable for various server configurations.

## Long description

HP Flexible Slot Power Supplies deliver up to 94% efficiency with 80Plus Platinum certification, reducing server power draw and lowering energy waste in data centers. The Flex Slot form factor is 25% smaller than previous-generation Common Slot supplies, freeing internal space for additional server options and helping maintain or improve overall server performance.
Advantages
These power supplies offer high efficiency to reduce operating costs and thermal load, a compact form factor to increase internal expandability, tool-less hot-plug access for faster serviceability, and broad compatibility across the ProLiant DL300 Gen9 server family to simplify spare-part management. The 1400W Platinum Plus option additionally supports HP Power Discovery Services via embedded power line communication.
Key specifications
Efficiency: up to 94% (80Plus Platinum certified)
Form factor: Flex Slot (25% smaller than previous generation Common Slot)
Serviceability: tool-less hot-plug access
Compatibility: supported across ProLiant DL300 Gen9 servers
Optional feature: 1400W Platinum Plus with embedded power line communication for Power Discovery Services
How to use
Install the Flex Slot power supply into the designated bay of a compatible ProLiant DL300 Gen9 server following standard safety and installation procedures. The tool-less design allows insertion and removal without additional tools; ensure the server is in a supported state for hot-plug operations if replacing a live supply. Configure any management settings required for power monitoring and, if using the 1400W Platinum Plus option, enable Power Discovery Services according to HP guidance.
Recommendations
Choose the Flex Slot model that matches your server’s power and management needs; use the 1400W Platinum Plus option when you require integrated Power Discovery Services. Maintain a compatible spare strategy for ProLiant DL300 Gen9 systems to reduce downtime and simplify service.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.91 kg |
| Power supply type | Flex Slot |
| Height | 225.3 mm |
| Width | 68 mm |
| Depth | 40.4 mm |
| Product colour | Grey |
| Purpose | Server |
| Efficiency | 94 % |
| 80 PLUS certification | 80 PLUS Platinum |
| AC input frequency | 50 - 60 |
| AC input voltage | 100 - 240 |
| Total power | 500 W |

## FAQ

### How much does the Power Supply Unit HPE 720478-B21 cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 09.07.2026 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

### Where can I download the instructions for Power Supply Unit HPE 720478-B21?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/252661/65766507_large.webp