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Redundant power supply provided reliable failover.
820792-B21
HPE 900W AC 240VDC Redundant Power Supply Kit
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820792-B21
- Description:
- HPE 900W AC 240VDC Redundant Power Supply Kit
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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.
820792-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 820792-B21 for additional pricing. Browse the full Hpe Power Supplies series or explore all Hpe products.
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
 820792-B21 |  512327-B21 |  JL820A |  517521-B22 |  867584-B21 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 750W | 850W | 850W | 750W |
| Use Case | Enterprise Server / Workstation / Gaming | Workstation / Gaming | Gaming / Workstation / Rack Server | Gaming | Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Certifications | 80 PLUS / CE / FCC / UL | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / UL / CE / RoHS |
| Remote Monitoring | No | N/A | No | No | No |
| Input Voltage | 110–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 94% | 92% | 92% | 92% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / UVP / OTP | OCP, OVP, SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 1 | 2 | 1 |
| PCIe (6+2) Connectors | 2 | 3 | 2 | 3 | 2 |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Molex Connectors | 4 | 4 | 4 | 3 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 55°C | 50°C | 50°C | 50°C |
| Product Name | 820792-B21 850W Modular ATX Power Supply | 512327-B21 High Efficiency ATX Modular Power Supply | JL820A 850W Fully Modular ATX Power Supply | 517521-B22 High Performance Gold Modular Power Supply | 867584-B21 High-Performance Gold Modular ATX Power Supply |
| Height | 5.5 inches | 5 inches | 5.0 inches | 5.9 inches | 5.9 inches |
| Width | 6.3 inches | 6 inches | 8.6 inches | 3.4 inches | 3.4 inches |
| Depth | 3.4 inches | 5.5 inches | 6.3 inches | 5.5 inches | 5.5 inches |
| Weight | 4.2 lbs | 4 lbs | 4.5 lbs | 5.8 lbs | 4.5 lbs |
Reviews & Ratings
H
Hassan Ali
4
OEM PSU installed easily and runs quietly.
V
Victor Salinas
5
Stable power delivery for critical workloads.
L
Lars Nyberg
3
Good build quality and dependable performance.
K
Kevin Moore
4
Essential redundancy component.
Questions & Answers
Which HPE servers are compatible with the 820792-B21 900W AC 240VDC Redundant Power Supply Kit?
The HPE 820792-B21 kit is compatible with HPE ProLiant DL360 Gen9, DL380 Gen9, DL560 Gen9 and select HPE Apollo series servers.
What is the power output rating of the HPE 900W AC 240VDC Redundant Power Supply Kit?
This kit delivers a continuous 900 W DC output to the server backplane, supporting full-load performance.
What AC input voltage range does the 820792-B21 power supply support?
It accepts a universal AC input of 100–240 V AC and conditions it to a stable 240 V DC bus.
How does the redundant power supply enhance system reliability?
By providing two independent 900 W modules with automatic load sharing, it maintains power if one module fails, eliminating single points of failure.