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Reliable 500W PSU with smooth hot-swap capability.
865408-B21
HPE 500W FS PLAT HT PLG LH PWR SPLY KIT PL-SI
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Name:
865408-B21
- Description:
- HPE 500W FS PLAT HT PLG LH PWR SPLY KIT PL-SI
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$351.04
- Price:
$105.3270% off
Quantity:
1
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865408-B21 Overview
865408-B21 is an 850W, Modular ATX power supply featuring Gold 80 PLUS certification and a wide input voltage range of 100–240V. It is engineered with Active PFC, a 120mm fan using a Fluid Dynamic bearing, and comprehensive protections including OCP, OVP, and SCP, ensuring reliable performance for high-demand applications.
The unit offers robust connectivity with 1 ATX 24-Pin connector, 2 EPS (CPU) 4+4 Pin connectors, 2 PCIe (6+2) connectors, and 6 SATA power connectors, paired with an efficient 94% performance rating. Built with high-quality sleeved cables for reduced noise levels, it is ideally suited for gaming and workstation environments where stability and low acoustic output are paramount.
865408-B21 price is $105.32, a 70% saving from the Hpe list price of $351.04. 865408-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 865408-B21 for additional pricing. Browse the full Hpe Power Supplies series or explore all Hpe products.
865408-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Gaming / Workstation
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Multi Rail
- Certifications
- 80 PLUS
- 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
- 94%
- Protections
- OCP / OVP / SCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 6
- 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
- 865408-B21 High Performance Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 4.3 inches
- Depth
- 6.0 inches
- Weight
- 7.5 lbs
865408-B21 Use Case
High-Availability Virtualization Cluster with HPE 500W Hot-Plug Power Supply
In large enterprise data centers running VMware or Hyper-V clusters, the HPE 500W FS PLAT HT PLG LH Power Supply Kit (865408-B21) delivers redundant, hot-swappable power without interrupting virtual machine workloads. Benefits: • Zero downtime maintenance—swap failed units under full load • SLA compliance—continuous operation for business-critical applications • Simplified capacity planning—500W headroom for burst CPU/GPU demands
Edge-Site Retail Server Reliability for Point-of-Sale and Inventory Management
Retail chains deploying HPE ProLiant servers at remote or branch locations use the 865408-B21 kit to ensure stable power in constrained racks. Benefits: • Compact, full-height form-factor—fits small cabinets • Hot-plug replacement—minimizes store downtime during peak hours • Predictable failover—maintains POS transactions, inventory sync and customer experience
Rapid Mean Time to Repair (MTTR) in Remote Data Center Environments
Colocation facilities and telecommunications shelters rely on the HPE 500W Platinum efficiency power supply to reduce MTTR when field failures occur. Benefits: • Tool-less, front-accessible insertion—accelerates on-site service • Platinum efficiency—lowers cooling costs in harsh environments • Standardized spare inventory—streamlines logistics and support contracts
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 865408-B21 |  Q0H80A |  JG137A |  J9405B |  JL086A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 650W | 750W | 850W | 650W |
| Use Case | Gaming / Workstation | Gaming / Workstation | Gaming / Workstation / Rack Server | Workstation / Gaming | Gaming / Workstation / Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Semi-Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Multi Rail | Multi Rail | Single Rail | Multi Rail | Single Rail |
| Certifications | 80 PLUS | 80 PLUS | 80 PLUS / CE / FCC / UL | 80 PLUS / CE / FCC / UL / CB / TUV / RoHS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | PMBus | 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 | 120mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Dual Ball | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | No | Yes |
| Efficiency Rating | 94% | 92% | 92% | 92% | 92% |
| Protections | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / UVP / OTP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 2 | 2 | 1 | 1 |
| PCIe (6+2) Connectors | 2 | 3 | 3 | 2 | 2 |
| SATA Power Connectors | 6 | 6 | 6 | 8 | 4 |
| Molex Connectors | 2 | 2 | 4 | 4 | 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 | 100,000 hours | 100,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | 865408-B21 High Performance Modular ATX Power Supply | Q0H80A 650W Gold Modular ATX Power Supply | JG137A High Performance Modular Power Supply | J9405B High-Performance ATX Power Supply | JL086A High-Efficiency Modular ATX Power Supply |
| Height | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches | 5 inches |
| Width | 4.3 inches | 6.3 inches | 7.0 inches | 5.3 inches | 6 inches |
| Depth | 6.0 inches | 5.8 inches | 6.0 inches | 7.1 inches | 7 inches |
| Weight | 7.5 lbs | 8.5 lbs | 8 lbs | 5 lbs | 8 lbs |
Reviews & Ratings
R
Rizwan Malik
4
Consistent power delivery under load.
D
Daniel Fox
5
OEM unit fit without issues.
S
Sami Ullah
3
Good performance for production servers.
J
Johan Nilsson
4
Dependable power option.
Questions & Answers
What is the HPE 865408-B21 500W FS Platinum Hot-Plug Power Supply Kit?
The HPE 865408-B21 is a 500-watt, full-form factor, Platinum-efficient, hot-plug server power supply kit designed for enhanced performance and reliability in HPE ProLiant systems.
Which HPE ProLiant servers are compatible with the 865408-B21 power supply?
The 865408-B21 is compatible with select HPE ProLiant DL and ML Gen8 and Gen9 rack-mount servers, including DL380, DL360, ML350, and related chassis requiring a Platinum 500W FS module.
What input voltage range does the HPE 865408-B21 support?
This power supply supports a universal input voltage of 100–240 VAC at 50–60 Hz, allowing seamless operation in global data-center environments.
What efficiency rating does the 500W FS Platinum power supply offer?
The 865408-B21 is 94% efficient under typical load conditions, meeting 80 PLUS Platinum standards to reduce energy consumption and lower operating costs.