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Power supply delivered stable output under continuous load.
748287-B21
HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit
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748287-B21
- Description:
- HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit
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748287-B21 Overview
748287-B21 is a high-performance power supply unit offering 850W of power, designed in a modular format with an ATX form factor. It features an 80 PLUS Gold certification, supports an input voltage range of 100–240V, and is equipped with Active PFC and a 135mm fluid dynamic fan. The unit provides comprehensive protection including OCP, OVP, UVP, SCP, OTP, and Surge, while its connector suite comprises one ATX 24-Pin, two EPS (CPU) 4+4 Pin, three PCIe (6+2), eight SATA, and four Molex connectors alongside a cable design that is fully sleeved.
This power supply stands out with its impeccable build quality and optimized low-noise performance, making it well-suited for demanding gaming rigs, workstations, and high-performance servers. Its robust design and efficient voltage regulation ensure reliable performance in both intense gaming sessions and professional applications, rendering it a top choice among enthusiasts and professionals alike.
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748287-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Gaming / Workstation / Server
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL / ROHS
- Remote Monitoring
- N/A
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 135mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- Efficiency Rating
- 94%
- Protections
- OCP, OVP, UVP, SCP, OTP, Surge
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 3
- 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
- 748287-B21 High-Performance Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 6.3 inches
- Depth
- 10.2 inches
- Weight
- 5.8 lbs
748287-B21 Use Case
Ensuring Zero-Downtime in Enterprise Data Centers
In mission-critical enterprise data center clusters running virtualized workloads, the 748287-B21 HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit delivers N+1 redundancy with live-swap capability. Its hot-pluggable design enables maintenance or replacement without server shutdown, while platinum efficiency reduces power draw by up to 94%. Benefit: Maximizes uptime, streamlines power-module servicing, and cuts operational costs with superior energy efficiency.
Optimizing Power for High-Performance AI/ML Computing
In AI research labs and HPC environments, GPU-accelerated servers demand reliable high-density power. The 748287-B21 HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit provides 1200W of stable, high-efficiency power per slot under peak loads, with hot-swap support to avoid training interruptions. Benefit: Enhances system reliability for continuous model training, accelerates time-to-insight, and lowers energy expenses.
Securing Reliable Power for Edge Computing in 5G Networks
At remote telco edge and branch sites delivering 5G network functions, the 748287-B21 HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit ensures redundant, field-serviceable power. Its common-slot form factor simplifies on-site replacements and reduces rack space. Benefit: Ensures uninterrupted low-latency services, minimizes field maintenance time, and drives operational efficiency in distributed environments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 748287-B21 |  517521-B22 |  720482-B21 |  P06731-B21 |  746708-B21 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 850W | 750W | 750W | 850W |
| Use Case | Gaming / Workstation / Server | Gaming | Gaming / Workstation / Enterprise Server | Gaming / Workstation | Gaming / Workstation / Enterprise Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | 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 |
| Remote Monitoring | N/A | 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 | 135mm | 120mm | 120mm | 120mm | 140mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 94% | 92% | 92% | 92% | 92% |
| Protections | OCP, OVP, UVP, SCP, OTP, Surge | OCP / OVP / UVP / OTP | OCP / OVP / SCP | OCP / OVP / OTP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 2 | 1 | 1 | 2 |
| PCIe (6+2) Connectors | 3 | 3 | 2 | 2 | 3 |
| SATA Power Connectors | 8 | 6 | 4 | 6 | 8 |
| Molex Connectors | 4 | 3 | 2 | 4 | 4 |
| 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 | 748287-B21 High-Performance Modular ATX Power Supply | 517521-B22 High Performance Gold Modular Power Supply | 720482-B21 High Performance Modular Power Supply | P06731-B21 High Performance Modular ATX Power Supply | 746708-B21 Elite Series 850W Power Supply Unit |
| Height | 5.5 inches | 5.9 inches | 5.5 inches | 5 inches | 5.5 inches |
| Width | 6.3 inches | 3.4 inches | 6.3 inches | 6 inches | 5.9 inches |
| Depth | 10.2 inches | 5.5 inches | 3.1 inches | 8 inches | 3.5 inches |
| Weight | 5.8 lbs | 5.8 lbs | 4.2 lbs | 6 lbs | 6.5 lbs |
Reviews & Ratings
P
Paolo Greco
4
Hot plug replacement was quick and easy.
N
Neil Watson
5
High efficiency PSU reduced power waste.
E
Emmanuel Petit
3
OEM quality ensured reliability.
V
Victor Salazar
4
Very dependable power supply.
Questions & Answers
What is the power output of the HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit?
The HPE 1200W Common Slot Platinum Hot Plug Power Supply Kit delivers a continuous 1200 watts of DC power to HPE ProLiant servers.
Which HPE servers are compatible with the 748287-B21 power supply kit?
The 748287-B21 kit is compatible with HPE ProLiant DL380 Gen9/Gen10, DL360 Gen9/Gen10, and select BL460c Gen9 blade server series.
What efficiency rating does the HPE 1200W power supply offer?
This power supply is 94% efficient or higher at 50% load, meeting 80 PLUS Platinum certification requirements.
What does “Common Slot” mean for this hot-plug power supply?
Common Slot indicates a standardized form factor and electrical interface that supports interchangeability across multiple HPE server families.