United States$5,000,000+
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Jan de Vries
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High capacity PDU handled heavy loads reliably without overheating.
P9R81A
HPE G2 Mtrd Md 3P 22kVA/60309 INTL PDU
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P9R81A
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- HPE G2 Mtrd Md 3P 22kVA/60309 INTL PDU
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P9R81A Overview
P9R81A is an 850W, fully modular ATX power supply that features an 80 PLUS Gold certification with an input voltage range of 100–240V and active PFC for efficient performance. It is designed with a 140mm fan utilizing a fluid dynamic bearing for optimal cooling, and incorporates multiple protections including OCP, OVP, SCP, and OTP to safeguard both the PSU and connected components.
Built with high-quality sleeved cables and boasting low noise levels, the P9R81A is suitable for a wide range of applications including high-end gaming, workstations, and enterprise server environments. Its robust build quality, excellent efficiency rating of 92%, and a variety of connectors—such as 1 ATX 24-pin, 2 EPS 4+4-pin, 4 PCIe 6+2-pin, 8 SATA, and 4 Molex connectors—make it a versatile choice for demanding power requirements.
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Request bulk order quote for P9R81A for additional pricing. Browse the full Hpe Power Distribution Units series or explore all Hpe products.
P9R81A Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Enterprise Server / Data Center / Rack Server / Workstation / HPC / Gaming / Mining / General Use
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL / ROHS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 140mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- Efficiency Rating
- 92%
- Protections
- OCP / OVP / SCP / OTP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 4
- SATA Power Connectors
- 8
- 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
- P9R81A 850W Modular 80 PLUS Gold ATX Power Supply
- Height
- 5.5 inches
- Width
- 5.9 inches
- Depth
- 6.3 inches
- Weight
- 9.3 lbs
P9R81A Use Case
Real-Time Power Monitoring for High-Density Enterprise Data Centers
In a Fortune 500 data center deploying high-density 42U racks, the P9R81A-HPE G2 Mtrd Md 3P 22kVA/60309 INTL PDU delivers per-outlet metering and environmental sensors for precision load balancing and hotspot prevention. Benefit: Reduces unplanned downtime by 40% and increases rack power utilization by 20%, ensuring continuous operations and maximizing infrastructure ROI.
Secure Remote Rack Management in Global Colocation Facilities
A global colocation provider integrates the P9R81A-HPE G2 PDU across hundreds of international sites, leveraging SNMPv3, SSH and web-based dashboards for secure, real-time power control, threshold alerts and firmware updates. Benefit: Cuts on-site technician dispatches by 60% and accelerates incident resolution by 50%, boosting SLA compliance and customer satisfaction.
Edge Computing Resilience for Industrial IoT Installations
At multiple manufacturing plant edge sites, the P9R81A-HPE G2 INTL PDU powers and monitors critical IoT gateways, PLCs and SCADA systems, with customizable alarms and automated failover to backup circuits. Benefit: Delivers 99.99% system uptime, prevents production line disruptions and supports predictive maintenance initiatives.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 P9R81A |  D9N53A |  P9R61A |  D9N59A |  H8B48A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 650W | 650W | 650W | 600W |
| Use Case | Enterprise Server / Data Center / Rack Server / Workstation / HPC / Gaming / Mining / General Use | Gaming / Workstation / Rack Server | Gaming / Workstation / Server | Gaming / Workstation | Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Semi-Modular | Semi-Modular | Modular | Semi-Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | N/A |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / UL / RoHS |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 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 | 140mm | 120mm | 135mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | No | Yes | Yes | Yes |
| Efficiency Rating | 92% | 94% | 92% | 94% | 92% |
| Protections | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 2 | 2 | 1 |
| PCIe (6+2) Connectors | 4 | 2 | 2 | 2 | 2 |
| SATA Power Connectors | 8 | 6 | 6 | 6 | 4 |
| Molex Connectors | 4 | 4 | 4 | 4 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Braided | 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 | 50°C | 50°C | 50°C | 40°C |
| Product Name | P9R81A 850W Modular 80 PLUS Gold ATX Power Supply | D9N53A 650W Semi-Modular ATX Power Supply | P9R61A 650W Semi-Modular Gold ATX Power Supply | D9N59A 650W Gold ATX Modular Power Supply | H8B48A |
| Height | 5.5 inches | 5.0 inches | 5.0 inches | 5 inches | 5.1 inches |
| Width | 5.9 inches | 6.3 inches | 6.3 inches | 6 inches | 8.6 inches |
| Depth | 6.3 inches | 5.9 inches | 3.4 inches | 7 inches | 7.1 inches |
| Weight | 9.3 lbs | 3.5 lbs | 6.0 lbs | 5 lbs | 12 lbs |
Reviews & Ratings
A
Alessandro Greco
4
Accurate metering and excellent outlet layout.
M
Markus Keller
5
Reliable three phase power distribution for critical racks.
P
Pedro Costa
3
Well built and easy to integrate.
A
Antoine Lef'vre
4
Enterprise grade PDU with consistent performance.
Questions & Answers
What is the HPE G2 Metered Modular 3P 22 kVA/60 A PDU (SKU P9R81A)?
The HPE G2 Metered Modular 3-Phase 22 kVA/60 A PDU (SKU P9R81A) is an intelligent, rack-mount power distribution unit designed for high-density data center applications, providing accurate per-outlet power metering and flexible outlet configuration.
What power capacity does SKU P9R81A support?
The P9R81A PDU delivers up to 22 kVA of total power capacity at 60 A in a 3-phase configuration, ensuring reliable distribution for servers, storage, and networking equipment.
Which input voltage ranges are supported by the HPE G2 metered modular PDU?
The HPE G2 P9R81A supports international input voltages from 200 V to 240 V AC in 3-phase configuration, accommodating global data center standards.
How many output outlets does SKU P9R81A provide?
The modular design of SKU P9R81A supports up to 24 configurable outlets per module, allowing custom C13 or C19 outlet deployment for optimized equipment connectivity.