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P9R81A
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- HPE G2 Mtrd Md 3P 22kVA/60309 INTL PDU
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3 Year Extended Warranty
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Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
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
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.
What is the price of P9R81A?
Pricing for P9R81A is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for P9R81A.
Explore more options from Power Distribution Units or explore other 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
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| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Braided | Sleeved | Sleeved | Sleeved | Sleeved |
| Certifications | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / UL / RoHS | 80 PLUS / CE / FCC / UL / RoHS |
| Depth | 3.4 inches | 7 inches | 6.3 inches | 7.1 inches | 5.9 inches |
| Efficiency Rating | 92% | 94% | 92% | 92% | 94% |
| EPS (CPU) 4+4 Pin | 2 | 2 | 2 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Fan Size | 135mm | 120mm | 140mm | 120mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5.0 inches | 5 inches | 5.5 inches | 5.1 inches | 5.0 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Modularity | Semi-Modular | Modular | Modular | Semi-Modular | Semi-Modular |
| Molex Connectors | 4 | 4 | 4 | 2 | 4 |
| 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 | 40°C | 50°C |
| PCIe (6+2) Connectors | 2 | 2 | 4 | 2 | 2 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | P9R61A 650W Semi-Modular Gold ATX Power Supply | D9N59A 650W Gold ATX Modular Power Supply | P9R81A 850W Modular 80 PLUS Gold ATX Power Supply | H8B48A | D9N53A 650W Semi-Modular ATX Power Supply |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP |
| Rail Configuration | Single Rail | Single Rail | Single Rail | N/A | Single Rail |
| Remote Monitoring | No | No | No | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 6 | 6 | 8 | 4 | 6 |
| Use Case | Gaming / Workstation / Server | Gaming / Workstation | Enterprise Server / Data Center / Rack Server / Workstation / HPC / Gaming / Mining / General Use | Gaming | Gaming / Workstation / Rack Server |
| Wattage | 650W | 650W | 850W | 600W | 650W |
| Weight | 6.0 lbs | 5 lbs | 9.3 lbs | 12 lbs | 3.5 lbs |
| Width | 6.3 inches | 6 inches | 5.9 inches | 8.6 inches | 6.3 inches |
| Zero RPM Mode | Yes | Yes | Yes | Yes | No |
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Questions & Answers
Q
What is the HPE G2 Metered Modular 3P 22 kVA/60 A PDU (SKU P9R81A)?
A
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.
Q
What power capacity does SKU P9R81A support?
A
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.
Q
Which input voltage ranges are supported by the HPE G2 metered modular PDU?
A
The HPE G2 P9R81A supports international input voltages from 200 V to 240 V AC in 3-phase configuration, accommodating global data center standards.
Q
How many output outlets does SKU P9R81A provide?
A
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.
Q
Is the HPE G2 Metered Modular PDU compatible with HPE rack enclosures?
A
Yes, the P9R81A is fully compatible with HPE G2 rack enclosures and standard 19-inch data center racks, providing tool-less installation and secure mounting brackets.
Q
Does SKU P9R81A support remote power monitoring?
A
Yes, the HPE G2 P9R81A features an onboard web interface and SNMPv1/v2c/v3 support for remote per-outlet power monitoring, threshold alerts, and comprehensive energy reporting.
Q
Which network protocols are supported for monitoring and management?
A
The P9R81A supports SNMPv1/v2c/v3, IPMI, and Redfish protocols, enabling integration with HPE OneView, third-party DCIM tools, and secure encrypted communications.
Q
What are the physical dimensions and weight of the P9R81A PDU?
A
The HPE G2 P9R81A measures 1.7 in. × 17.5 in. × 26.5 in. (H×W×D) and weighs approximately 32 lb, fitting standard 1U or 2U rack spaces depending on module configuration.
Q
What are the environmental operating requirements?
A
The P9R81A operates between 0 °C and 40 °C (32 °F–104 °F) at 10–90 % non-condensing humidity, and meets RoHS, WEEE, and ENERGY STAR guidelines for efficient, eco-friendly operation.
Q
Which safety and regulatory certifications does the P9R81A hold?
A
This PDU carries UL, CE, TUV, and RCM safety certifications and complies with IEC 62368-1 and IEC/EN 60950-1 standards, ensuring global regulatory compliance.
Q
Can the P9R81A modules be hot-swapped or daisy-chained?
A
Yes, HPE G2 P9R81A modules support live hot-swap and daisy-chain configurations, simplifying maintenance and expansion without disrupting power to connected equipment.
Q
Does the HPE G2 PDU include power input cables?
A
No, the P9R81A is sold as a chassis only; power input cables and feed breakers are ordered separately to match site-specific rack power feed requirements.
Q
How does SKU P9R81A integrate with HPE OneView?
A
The P9R81A integrates seamlessly with HPE OneView via native Redfish and SNMP support, enabling unified rack power monitoring, capacity planning, and automated alerting.
Q
What is the typical installation process for the P9R81A?
A
Install the P9R81A by mounting it into a 19-inch rack, connecting the 3-phase feed to the input breaker, configuring network settings via the onboard web GUI, and assigning outlet groups as required.
Q
What warranty coverage is provided for SKU P9R81A?
A
HPE offers a standard 3-year limited warranty for the P9R81A PDU, including parts replacement and 24×7 technical support to ensure uninterrupted data center power distribution.
Q
Can I monitor individual outlet current draw on the P9R81A?
A
Yes, the metered modular design of the HPE G2 P9R81A provides per-outlet current, voltage, and power monitoring via the web interface or SNMP for precise load balancing and capacity planning.
