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Intelligent PDU provided excellent load handling.
AF521A
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HPE Intelligent Modular 8.3kVA/CS8265C 40A/208V Outlets (6)...
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AF521A
- Description:
- HPE Intelligent Modular 8.3kVA/CS8265C 40A/208V Outlets (6) C19/Horizontal NA/JP PDU
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AF521A Overview
AF521A is a 500W, Semi-Modular ATX power supply featuring an 80 PLUS Gold certification. It supports an input voltage of 100–240V with active PFC and is equipped with a 120mm fan using a Rifle bearing design, ensuring reliable performance and efficient cooling during demanding operations.
Designed with advanced protections including OCP, OVP, UVP, SCP, and OTP, the AF521A offers a 90% efficiency rating and comes with a complete array of connectors such as a single ATX 24-Pin, one EPS (CPU) 4+4 Pin, two PCIe (6+2) connectors, four SATA power connectors, and two Molex connectors. Its sleeved cable design, robust build quality, low noise levels via zero RPM mode, and versatile use cases make it an excellent choice for gaming, workstation, and server applications.
AF521A price is is available on request. Get immediate quote.
Request bulk order quote for AF521A for additional pricing. Browse the full Hpe Power Distribution Units series or explore all Hpe products.
AF521A Specifications
- Product Type
- Power Supply
- Wattage
- 500W
- Use Case
- Gaming
- Form Factor
- ATX
- Modularity
- Semi-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
- 120mm
- Fan Bearing Type
- Rifle
- Zero RPM Mode
- Yes
- Efficiency Rating
- 90%
- Protections
- OCP / OVP / UVP / SCP / OTP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 4
- Molex Connectors
- 2
- Floppy Connector
- No
- Cable Type
- Sleeved
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 100,000 hours
- Operating Temperature
- 50°C
- Product Name
- AF521A 500W Semi-Modular 80 PLUS Gold Power Supply
- Height
- 3.4 inches
- Width
- 5.9 inches
- Depth
- 5.5 inches
- Weight
- 8 lbs
AF521A Use Case
Centralized Power Monitoring for Hyperscale Data-Center Racks
In a 500-rack hyperscale data-center environment, IT operations deploy the AF521A-HPE Intelligent Modular 8.3 kVA/CS8265C PDU with six 40 A/208 V C19 outlets horizontally across high-density server clusters. Real-time per-outlet current metering, environmental sensor integration and SNMP/Redfish alerts feed directly into the facility’s DCIM platform. Outcome: proactive capacity planning, 35 % reduction in overload incidents and a 15 % improvement in overall PUE through granular load balancing and automated threshold shutdown.
Edge-Site Power Resilience and Remote Management for Retail Micro-Data Centers
A national retailer operates 200 remote micro-data centers to support PoS, inventory and local AI inference. Each site uses the AF521A-HPE Intelligent Modular PDU’s embedded web UI and out-of-band management for remote power cycling, firmware updates and customizable alert thresholds. Outcome: 50 % fewer on-site technician dispatches, 99.99 % uptime across distributed locations and clear power-usage reporting by store for simplified cost-allocation.
High-Performance GPU Cluster Load Balancing in Research Environments
A university research lab deploying multi-node GPU servers integrates AF521A-HPE Intelligent Modular PDUs in every rack to manage 8.3 kVA per cabinet. Per-outlet switching and precision current sensing prevent single-phase overloads, enable scheduled remote reboots and automate power-cycling during maintenance windows. Outcome: 20 % faster job turnaround by eliminating unscheduled outages, streamlined rack-level serviceability and tight coupling with Slurm workload manager for energy-aware scheduling.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| AF521A |  P9S17A |  AF525A |  D9N59A |  H8B52A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 500W | 750W | 550W | 650W | 850W |
| Use Case | Gaming | Gaming | Gaming | Gaming / Workstation | Gaming / Workstation / Rack Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Semi-Modular | Modular | Semi-Modular | Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Multi Rail | Single Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / TUV / RoHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | No | N/A |
| Input Voltage | 100–240V | 110–240V | 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 | Rifle | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 90% | 94% | 94% | 94% | 94% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 1 | 1 | 2 | 1 |
| PCIe (6+2) Connectors | 2 | 3 | 2 | 2 | 2 |
| SATA Power Connectors | 4 | 6 | 6 | 6 | 6 |
| Molex Connectors | 2 | 4 | 3 | 4 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Flat | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | AF521A 500W Semi-Modular 80 PLUS Gold Power Supply | P9S17A Power Supply Unit | AF525A Power Supply | D9N59A 650W Gold ATX Modular Power Supply | H8B52A High Performance Modular ATX Power Supply |
| Height | 3.4 inches | 6.0 inches | 5.0 inches | 5 inches | 5 inches |
| Width | 5.9 inches | 5.9 inches | 6.3 inches | 6 inches | 6 inches |
| Depth | 5.5 inches | 3.4 inches | 3.4 inches | 7 inches | 5.5 inches |
| Weight | 8 lbs | 4.5 lbs | 6.5 lbs | 5 lbs | 4 lbs |
Reviews & Ratings
F
Faisal Latif
4
Strong outlet design and dependable performance.
J
Jonas Pettersson
5
Easy integration into existing racks.
P
Paul Hendricks
4
Power delivery has been rock solid.
M
Marco Vitelli
5
High quality modular PDU.
Questions & Answers
What power capacity does the HPE Intelligent Modular PDU AF521A support?
The AF521A PDU supports up to 8.3 kVA of output power at 208 V/40 A, delivering reliable, high-density power distribution in rack environments.
How many outlets does the AF521A PDU provide?
This PDU features six IEC C19 outlets for secure, high-current device connections.
What are the input specifications for the AF521A PDU?
It accepts a 208 V, 40 A input via a NEMA L6-40P connector, optimized for North American and Japanese power infrastructures.
Is the AF521A PDU designed for horizontal rack mounting?
Yes, the AF521A is a 0U horizontal PDU that installs on rear rack mounting rails without consuming vertical space.
What does “intelligent modular” mean for this PDU?
“Intelligent modular” indicates hot-swappable metering modules and network management can be added or replaced without downtime.
How can I remotely monitor power usage on the AF521A?
Use the built-in web interface or SNMP to view real-time current, voltage and power consumption remotely.
Does the PDU integrate with HPE management software?
Yes, it integrates with HPE OneView and iLO via the Embedded Lights-Out API for unified infrastructure management.
Can I daisy-chain multiple AF521A PDUs for expanded capacity?
While the AF521A supports redundant feeds, daisy-chaining isn’t native; you can parallel PDUs with proper cabling and breakers per best practices.
Are environmental sensors supported by this PDU?
Yes, optional HPE temperature, humidity and airflow sensors can connect directly for ambient condition monitoring.
What are the dimensions and weight of the AF521A PDU?
The horizontal PDU measures 1.73″ H × 17.48″ W × 6.5″ D and weighs approximately 4.5 lbs for easy 0U installation.
How do I install the HPE AF521A PDU?
Mount the 0U PDU on rear rack rails using included brackets, connect the input power cord and configure network settings via the web interface.
What warranty and support options are available?
HPE includes a one-year hardware warranty, with optional extensions through HPE Pointnext services for enhanced coverage.
How does per-outlet metering improve power management?
Per-outlet metering delivers precise load data for each device, enabling accurate capacity planning and preventing overloads.
Can I upgrade the firmware on the AF521A PDU?
Yes, firmware updates are performed via the web interface or SNMP to maintain the latest security patches and feature enhancements.
What safety certifications does the AF521A carry?
It is UL and CE certified and complies with RoHS and FCC regulations for safe, reliable data-center operation.
What are the key benefits of the HPE Intelligent Modular PDU AF521A?
It offers high availability with redundant inputs, granular power monitoring, seamless HPE software integration and flexible modular upgrades.