HPE 720478-B21 Hot-Plug Power supply
If you need a large quantity of 720478-B21 product - call us at +1 (347) 470 6982 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

720478-B21 HP 500-Watts Flex Slot Platinum 80 Plus Redundant Refurbished

Availability: In Stock
Part Number#: 720478-B21
List Price was: $86.05
Your Price:
You Save: $49.05 (57% off)

5% Discount on Checkout

Short Description:
720478-B21 500-Watts Flex Slot Platinum 80 Plus Redundant Hot Swap Power Supply DL360 DL380 ML350 Gen9 for Servers | Made by HP | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
30 Days

Redundancy Options for Reliable Power Supply

The HP 720478-B21 is a 500-watt power supply that is designed for use in Gen9 servers. It is a Flex Slot Platinum 80 Plus power supply, which means it is highly efficient and meets the 80 Plus Platinum standard for power efficiency. The "hot swap" feature of the power supply means that it can be replaced without shutting down the server. The "redundant" feature of the power supply means that it can be used in conjunction with another power supply to provide redundancy, so that if one power supply fails, the other can take over to keep the server running. This redundancy options provides a reliable power supply for the server.

Key Features and Benefits

  • High power output: The 720478-B21 HP power supply has a maximum output of 500 watts, making it suitable for high-performance servers and workstations.
  • Flex slot design: The power supply has a flex slot design that allows it to be installed in a variety of server models without the need for additional brackets or adapters.
  • Platinum 80 Plus certification: This power supply has achieved Platinum 80 Plus certification, which means it has a high level of energy efficiency, reducing power consumption and costs.
  • Redundant hot swap capability: The power supply has the ability to be hot swapped, meaning it can be replaced without shutting down the server. This feature increases uptime and reduces downtime.
  • Compatible with Gen9 servers: The 720478-B21 HP power supply is specifically designed for use with Gen9 servers, ensuring compatibility and optimal performance.
  • Over-voltage, over-current and short-circuit protection: The power supply has built-in protection against over-voltage, over-current, and short-circuit conditions, ensuring the safety and longevity of the server.
  • Easy to install and maintain: The power supply is easy to install and maintain, ma

Cooling and Thermal Management

The 720478-B21 HP 500-Watts Flex Slot Platinum 80 Plus Redundant Hot Swap Power Supply is designed to provide reliable and efficient power to Gen9 servers. It features a cooling and thermal management system that ensures optimal performance and prevents overheating.

The power supply uses a fan to dissipate heat, which is generated by the power conversion process. The fan is designed to run at a low noise level and can automatically adjust its speed based on the power load and temperature of the power supply. This ensures that the power supply maintains a cool operating temperature, even under heavy loads.

Additionally, the power supply has built-in thermal sensors that monitor the internal temperature of the power supply. If the temperature exceeds a certain threshold, the power supply will automatically shut down to prevent damage. This thermal management feature helps to protect the power supply and the server from overheating and potential damage.

The power supply also features a redundant design, which means that it has two separate power supplies installed in the same slot. This provides a backup power source in case one of the power supplies fails. This redundancy ensures that the server continues to operate even if one of the power supplies fails, providing added reliability and uptime.

Product Information 720478-B21 HPE

  • Brand Name: HPE
  • MPN: 720478-B21
  • Spare Number: 754377-001
  • Type: Power Supply - Hot-Plug / Redundant - Plug-in Module
  • Power Supply-Type: Server
  • Specification Compliance: Flexi Slot
  • SKU: 720478-B21

Device Power

  • Power Capacity: 500Watt
  • Input Voltage: AC 100-240 V
  • Frequency Required: 50 - 60 Hz
  • Efficiency: 94%
  • Certification: 80 Plus Platinum


  • Compliant Standards: UL, TUV, C-Tick, BSMI, cUL, CCC, KCC, WEEE, CISPR
  • Cooling: Active Fan

Environmental Parameters

  • Min Operating Temperature: 41 °F
  • Max Operating Temperature: 131 °F
  • Humidity Range Operating: 5 - 95% (non-condensing)

Compatibility Information 720478-B21 HPE 500W

  • Supported across the entire ProLiant DL300 Gen9 Server family
Product Condition:
Warranty provided by ALLHDD.COM:
30 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product 720478-B21 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.