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Power supply delivered consistent output for our server.
730941-B21
HP 550W FIO POWER SUPPLY 1YR IMS WARRANTY STANDARD
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Name:
730941-B21
- Description:
- HP 550W FIO POWER SUPPLY 1YR IMS WARRANTY STANDARD
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3 Year Extended Warranty
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730941-B21 Overview
730941-B21 is a 750W, modular ATX power supply engineered for high-performance computing environments. It features Gold-rated 80 PLUS certification, a wide input voltage range of 100–240V, and Active PFC to maximize efficiency and reliability. The unit is built with a 120mm fan using a fluid dynamic bearing mechanism, and it comes equipped with multiple safety protections including OCP, OVP, UVP, SCP, and OTP to safeguard your system against power anomalies.
Designed to suit a variety of use cases—from gaming and workstations to enterprise server applications—the 730941-B21 offers excellent build quality and low noise operation even under load. Its comprehensive connector assortment includes one ATX 24-pin, two EPS 4+4 pin, three PCIe (6+2) connectors, six SATA power connectors, and four Molex connectors, all paired with premium sleeved cables to enhance cable management and overall system aesthetics.
730941-B21 price is is available on request. Get immediate quote.
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730941-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 750W
- Use Case
- Gaming / Workstation / Enterprise Server
- 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
- 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
- 3
- 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
- 730941-B21 High Performance Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 6.3 inches
- Depth
- 5.1 inches
- Weight
- 3.2 lbs
730941-B21 Use Case
Enterprise Data Center Redundancy with 730941-B21 HP 550W FIO Power Supply
Financial services data centers retrofit HPE ProLiant servers with the 730941-B21 HP 550W FIO Power Supply (1YR IMS warranty standard) to establish an N+1 redundant power topology. This implementation delivers 99.99% uptime, accelerates on-site module replacement under warranty and minimizes unplanned service interruptions.
Remote Branch Office Infrastructure Resilience
Retail and manufacturing remote sites deploy the 730941-B21 HP 550W FIO Power Supply in edge servers to sustain continuous network and application services. The 1YR IMS warranty and hot-swap capability ensure rapid recovery, reduce maintenance costs and uphold consistent SLA compliance across distributed locations.
HPC and AI Cluster Power Stability
Research labs and AI development environments integrate the 730941-B21 HP 550W FIO Power Supply into GPU-dense clusters for reliable, high-efficiency power delivery. Warranty-backed support combined with efficient thermal management optimizes computational throughput and mitigates downtime risk.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 730941-B21 |  798102-B21 |  820303-B21 |  J2P89A |  874009-B21 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 750W | 850W | 600W | 750W | 650W |
| Use Case | Gaming / Workstation / Enterprise Server | Workstation | Gaming / Workstation | Gaming / Workstation | Workstation / Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Semi-Modular | Modular | Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Single Rail |
| 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 / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 110–240V | 110–240V | 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% | 92% | 94% | 92% | 92% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 2 | 1 | 1 | 1 |
| PCIe (6+2) Connectors | 3 | 3 | 2 | 2 | 2 |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Molex Connectors | 4 | 4 | N/A | 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 | 50°C | 50°C | 50°C | 50°C |
| Product Name | 730941-B21 High Performance Modular ATX Power Supply | Elite Power 798102-B21 850W Gold Semi-Modular ATX Power Supply | 820303-B21 Advanced Modular ATX Power Supply | J2P89A PowerPro 750 | 874009-B21 High Performance Modular ATX Power Supply |
| Height | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches |
| Width | 6.3 inches | 8.6 inches | 8.6 inches | 6.3 inches | 5.9 inches |
| Depth | 5.1 inches | 6.3 inches | 6.1 inches | 5.0 inches | 3.4 inches |
| Weight | 3.2 lbs | 5.9 lbs | 3.5 lbs | 4.8 lbs | 4.5 lbs |
Reviews & Ratings
H
Hamza Tariq
4
Simple installation and quiet operation.
P
Paul Jenkins
5
OEM replacement worked instantly.
I
Imran Qureshi
3
Stable and efficient PSU.
L
Lucas Meyer
4
Good value for enterprise use.
Questions & Answers
What systems are compatible with the HP 550W FIO Power Supply (SKU: 730941-B21)?
The HP 550W FIO Power Supply (730941-B21) is compatible with ProLiant DL360 Gen9, DL380 Gen9, DL560 Gen9, and select BL460c Gen9 BladeSystem servers that support FlexibleLOM interconnects.
What does FIO mean in the HP 550W FIO Power Supply?
FIO stands for Flexible Input/Output, indicating that the power supply integrates seamlessly with HP’s FlexibleLOM architecture for optimized server I/O and power delivery.
What are the electrical specifications of the HP 550W FIO Power Supply?
The HP 550W FIO Power Supply delivers 550 watts at 100–240 VAC input, achieves up to 92% efficiency (80 PLUS Platinum), and operates at 47–63 Hz with 5.0 A maximum input current.
Does the HP 550W FIO Power Supply support hot swap installation?
Yes. The HP 550W FIO Power Supply is hot-swappable, allowing you to replace or upgrade the PSU without powering down compatible HP ProLiant servers.