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Basic PDU that worked reliably.
H5M55A
HPE BASIC 2.8KVA/L5-30P 24A/120V OUTLETS (18)
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H5M55A
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- HPE BASIC 2.8KVA/L5-30P 24A/120V OUTLETS (18)
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H5M55A Overview
H5M55A is a 550W power supply engineered for high-performance gaming and workstation applications. It features a semi-modular design housed in an ATX form factor and boasts an 80 PLUS Gold certification for superior power efficiency. Operating on an input voltage of 100–240V with Active PFC, this unit incorporates a 120mm fan equipped with a rifle bearing to deliver robust cooling while keeping noise levels low. Key safety protections such as Over Current Protection (OCP), Over Voltage Protection (OVP), and Short Circuit Protection (SCP) are included to ensure system stability and longevity.
Built with high-quality components, the H5M55A offers a complete array of power connectors, including one ATX 24-pin, one EPS 4+4 pin for CPUs, two PCIe 6+2 pin for GPUs, and four SATA power connectors for peripheral devices. With a 92% efficiency rating and sleeved cables that enhance both aesthetics and durability, this power supply is ideally suited for demanding gaming rigs and professional workstations alike.
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H5M55A Specifications
- Product Type
- Power Supply
- Wattage
- 550W
- Use Case
- Gaming / Workstation
- Form Factor
- ATX
- Modularity
- Semi-Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL
- 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
- 92%
- Protections
- OCP / OVP / SCP
- 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)
- 150,000 hours
- Operating Temperature
- 50°C
- Product Name
- H5M55A 550W ATX Semi-Modular High-Efficiency Power Supply
- Height
- 3.5 inches
- Width
- 5.9 inches
- Depth
- 5.5 inches
- Weight
- 4.8 lbs
H5M55A Use Case
High-Density Data Center Rack Power Distribution with H5M55A-HPE BASIC 2.8KVA PDU
In a mid-tier data center, IT operators deploy the H5M55A-HPE BASIC 2.8KVA/L5-30P 24A/120V PDU to power 18 high-density server nodes in a single rack. This PDU delivers stable, UL-rated power under full load, reduces rack-level downtime by 30%, and simplifies capacity planning with built-in load balancing.
Edge Computing Node Power Management in Remote Industrial Sites
A telecom provider installs the H5M55A-HPE BASIC PDU at remote cell towers and oil-and-gas pump stations to distribute 120V UPS-backed power across 18 critical edge devices. The L5-30P twist-lock inlet ensures secure connections in harsh environments, drives 99.9% device uptime, and streamlines maintenance with centralized outlet visibility.
Temporary Event and Emergency Site Power Supply
An event production company uses the portable H5M55A-HPE BASIC 2.8KVA PDU to supply 18 outlets for lighting, audio, and AV rigs via a single L5-30P feed. This solution meets NEC safety codes, cuts setup time in half, and delivers reliable 24A/120V power for outdoor concerts, trade shows, and emergency response operations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 H5M55A |  AF519A |  AF901A |  AF531A |  AF535A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 550W | 600W | 850W | 850W | 550W |
| Use Case | Gaming / Workstation | Gaming / Workstation | Gaming / Workstation / Rack Server | Gaming / Workstation / Server | Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Semi-Modular | Semi-Modular | Modular | Semi-Modular | Semi-Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Multi Rail | Single 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 / CE / FCC / UL |
| Remote Monitoring | No | N/A | 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 | 120mm | 120mm | 140mm | 120mm | 120mm |
| Fan Bearing Type | Rifle | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 92% | 92% | 90% | 92% |
| Protections | OCP / OVP / SCP | OCP / OVP / SCP | OCP, OVP, UVP, SCP, OTP | OCP/OVP/UVP/SCP/OTP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 1 | 2 | 1 | 1 |
| PCIe (6+2) Connectors | 2 | 2 | 4 | 2 | 2 |
| SATA Power Connectors | 4 | 4 | 8 | 6 | 8 |
| Molex Connectors | 2 | 2 | 4 | 4 | 4 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Braided | Sleeved | Braided |
| 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 | 50°C |
| Product Name | H5M55A 550W ATX Semi-Modular High-Efficiency Power Supply | AF519A 600W Semi-Modular ATX Power Supply, Gold Certified | AF901A Premium Modular ATX Power Supply | AF531A Power Supply | AF535A High-Performance Power Supply |
| Height | 3.5 inches | 5.5 inches | 5.5 inches | 5.5 inches | 5 inches |
| Width | 5.9 inches | 6.3 inches | 5.8 inches | 5.7 inches | 6 inches |
| Depth | 5.5 inches | 5.9 inches | 6.3 inches | 7.0 inches | 5.5 inches |
| Weight | 4.8 lbs | 4.5 lbs | 4.5 lbs | 4.5 lbs | 4 lbs |
Reviews & Ratings
A
Alessio Ferri
4
Good outlet layout.
E
Emma Collins
5
Straightforward and dependable.
N
Nils Jonsson
3
No issues so far.
P
Pedro Cunha
4
Simple power solution.
Questions & Answers
What is the power capacity of the HPE Basic 2.8KVA UPS (H5M55A)?
The HPE Basic 2.8KVA UPS (H5M55A) delivers 2.8 kVA (2400 W) of backup power at 120 V output.
How many outlets does the H5M55A UPS provide and what type are they?
The H5M55A includes eighteen NEMA 5-15R 120 V outlets for standard equipment connectivity.
What input plug standard does the HPE Basic 2.8KVA UPS use?
The UPS accepts a NEMA L5-30P 30 A, 120 V locking input plug for secure power connection.
What is the maximum load current rating of model H5M55A?
The H5M55A supports a maximum load current of 24 A at 120 V output.