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820792-B21
- Description:
- HPE 900W AC 240VDC Redundant Power Supply Kit
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3 Year Extended Warranty
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
TRUSTED, TRIED, PROVEN
820792-B21 Overview
820792-B21 is a high-performance 850W power supply featuring a fully Modular design in an ATX form factor, equipped with an 80 PLUS Gold certification and an input voltage range of 110–240V. It comes with Active PFC and a 120mm fan utilizing a Fluid Dynamic bearing to ensure reliable cooling while maintaining efficient power conversion.
This power supply delivers robust protections including OCP, OVP, UVP, SCP, and OTP, and it offers versatile connectivity with 1 ATX 24-pin connector, 2 EPS (CPU) 4+4 pin connectors, 2 PCIe (6+2) connectors, and 6 SATA power connectors. With its sleeved cables, superior build quality, and low noise levels under various load conditions, the 820792-B21 is ideally suited for gaming rigs, professional workstations, and enterprise servers.
What is the price of 820792-B21?
Pricing for 820792-B21 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for 820792-B21.
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820792-B21 Specifications
| Product Type | Power Supply |
| Wattage | 850W |
| Use Case | Enterprise Server / Workstation / Gaming |
| Form Factor | ATX |
| Modularity | Modular |
| 80 PLUS Certification | Gold |
| Rail Configuration | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL |
| Remote Monitoring | No |
| Input Voltage | 110–240V |
| Hot-Swap Capable | No |
| PFC (Power Factor Correction) | Active PFC |
| Fan Size | 120mm |
| Fan Bearing Type | Fluid Dynamic |
| Zero RPM Mode | Yes |
| Efficiency Rating | 92% |
| Protections | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 |
| EPS (CPU) 4+4 Pin | 2 |
| PCIe (6+2) Connectors | 2 |
| SATA Power Connectors | 6 |
| Molex Connectors | 4 |
| Floppy Connector | No |
| Cable Type | Sleeved |
| RGB Lighting | No |
| MTBF (Mean Time Between Failures) | 150,000 hours |
| Operating Temperature | 50°C |
| Product Name | 820792-B21 850W Modular ATX Power Supply |
| Height | 5.5 inches |
| Width | 6.3 inches |
| Depth | 3.4 inches |
| Weight | 4.2 lbs |
820792-B21 Use Case
Enterprise Data Center High-Availability Power Resilience
In a Fortune 500 data center running HPE ProLiant servers, the 820792-B21-HPE 900W AC-240VDC Redundant Power Supply Kit provides dual 900W AC to 240VDC conversion modules. By installing two modules per server bay in an N+1 configuration, IT teams achieve seamless failover when a single supply experiences overload or hardware fault. Outcome: zero unplanned downtime, continuous SLA compliance, and predictable maintenance windows—powering mission-critical applications with enterprise-grade resiliency.
Telecommunications Central Office DC-Bus Integration
In a Tier-1 telco central office using HPE rack-mount platforms, the 820792-B21-HPE kit enables direct integration into the facility’s 240VDC distribution bus. Technicians replace legacy AC supplies with the dual-redundant modules to support baseband and switching systems. Outcome: simplified power architecture, reduced conversion losses by 15%, and enhanced network uptime—ensuring uninterrupted voice, data, and 5G edge services under stringent carrier-grade availability requirements.
Remote Edge and Branch Office Mission-Critical Uptime
For a distributed financial services firm deploying HPE servers in remote branch offices, the 820792-B21-HPE PSU kit ensures redundant power from local AC grids and backup DC sources. Compact dual modules fit existing chassis, delivering 900W continuous output per bay with automatic load balancing. Outcome: minimized risk of branch-level outages, consistent transaction processing, and centralized monitoring—guaranteeing secure, always-on customer experiences in geographically dispersed locations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| Certifications | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / UL / CE / RoHS | 80 PLUS / CE / FCC / UL / RoHS |
| Depth | 5.5 inches | 3.4 inches | 5.5 inches | 5.5 inches | 6.3 inches |
| Efficiency Rating | 94% | 92% | 92% | 92% | 92% |
| EPS (CPU) 4+4 Pin | 1 | 2 | 2 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5 inches | 5.5 inches | 5.9 inches | 5.9 inches | 5.0 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 110–240V | 100–240V | 100–240V | 100–240V |
| Modularity | Modular | Modular | Modular | Modular | Modular |
| Molex Connectors | 4 | 4 | 3 | 2 | 4 |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 55°C | 50°C | 50°C | 50°C | 50°C |
| PCIe (6+2) Connectors | 3 | 2 | 3 | 2 | 2 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | 512327-B21 High Efficiency ATX Modular Power Supply | 820792-B21 850W Modular ATX Power Supply | 517521-B22 High Performance Gold Modular Power Supply | 867584-B21 High-Performance Gold Modular ATX Power Supply | JL820A 850W Fully Modular ATX Power Supply |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / OTP | OCP, OVP, SCP | OCP / OVP / SCP / OTP |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Multi Rail | Single Rail |
| Remote Monitoring | N/A | No | No | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Use Case | Workstation / Gaming | Enterprise Server / Workstation / Gaming | Gaming | Gaming | Gaming / Workstation / Rack Server |
| Wattage | 750W | 850W | 850W | 750W | 850W |
| Weight | 4 lbs | 4.2 lbs | 5.8 lbs | 4.5 lbs | 4.5 lbs |
| Width | 6 inches | 6.3 inches | 3.4 inches | 3.4 inches | 8.6 inches |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
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Questions & Answers
Q
Which HPE servers are compatible with the 820792-B21 900W AC 240VDC Redundant Power Supply Kit?
A
The HPE 820792-B21 kit is compatible with HPE ProLiant DL360 Gen9, DL380 Gen9, DL560 Gen9 and select HPE Apollo series servers.
Q
What is the power output rating of the HPE 900W AC 240VDC Redundant Power Supply Kit?
A
This kit delivers a continuous 900 W DC output to the server backplane, supporting full-load performance.
Q
What AC input voltage range does the 820792-B21 power supply support?
A
It accepts a universal AC input of 100–240 V AC and conditions it to a stable 240 V DC bus.
Q
How does the redundant power supply enhance system reliability?
A
By providing two independent 900 W modules with automatic load sharing, it maintains power if one module fails, eliminating single points of failure.
Q
Can I hot-swap the HPE 820792-B21 modules without shutting down the server?
A
Yes. Both modules are hot-pluggable, allowing removal and replacement without impacting server operation.
Q
What is the energy efficiency rating of this redundant power supply kit?
A
The kit is 80 PLUS Platinum certified, delivering up to 94% efficiency and reducing power consumption.
Q
Does the 820792-B21 kit include all necessary cables and hardware?
A
Yes. It includes two 900 W power modules, AC power cords, mounting brackets and comprehensive installation instructions.
Q
How do I install the HPE 900W AC 240VDC Redundant Power Supply Kit?
A
Power off the server, unlock the rear bay, slide each module into its slot until it clicks, connect the AC input cables, then power on.
Q
What warranty and support options are available for SKU 820792-B21?
A
HPE provides a standard three-year warranty, with optional ProLiant service packs for next-business-day onsite support.
Q
What are the physical dimensions and weight of each power supply module?
A
Each module measures 36.8 × 39.5 × 282.6 mm (W × H × D) and weighs approximately 1.8 kg.
Q
Are there LED indicators for monitoring module status?
A
Yes. Integrated LEDs show module health, AC input presence and fault conditions for quick visual checks.
Q
What industry certifications does this power supply kit hold?
A
It is certified to UL, CE, FCC, TUV and RoHS standards, ensuring global safety and environmental compliance.
Q
Can I mix different wattage power supplies in a redundant configuration?
A
No. HPE recommends using two identical 900 W modules to ensure proper load balancing and redundancy.
Q
How can I troubleshoot a power supply fault on my HPE server?
A
Check the LED status, verify AC cable seating, reseat the module and review iLO system logs for detailed diagnostics.
Q
Where can I purchase genuine HPE 820792-B21 redundant power supply kits?
A
Genuine kits are available through the HPE Parts Store and authorized HPE Channel Partners.
