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Six-unit kit simplified large DC deployments significantly.
798100-B21
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HPE 6x 2650W -48VDC Ht Plg FIO PS Kit
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798100-B21
- Description:
- HPE 6x 2650W -48VDC Ht Plg FIO PS Kit
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798100-B21 Overview
798100-B21 is a high-performance modular ATX power supply rated at 1000W, featuring a robust Platinum 80 PLUS certification and an input voltage range of 100–240V. Designed with active PFC and a 135mm fluid dynamic fan, it delivers superior efficiency at 94% while incorporating comprehensive protections such as OCP, OVP, UVP, SCP, OTP, and OPP to ensure system safety under demanding conditions.
Engineered for critical use cases in gaming and workstation environments, 798100-B21 offers a fully modular cable design with sleeved cables for improved build quality and reduced noise levels. It includes one ATX 24-pin connector, two EPS (CPU) 4+4 pin connectors, four PCIe (6+2) connectors, eight SATA power connectors, and four Molex connectors, making it an ideal choice for high-end, performance-driven systems.
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798100-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 1000W
- Use Case
- Gaming / Workstation
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Platinum
- 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, OPP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 4
- 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
- 798100-B21 High Performance Modular Power Supply
- Height
- 5.9 in
- Width
- 3.39 in
- Depth
- 5.51 in
- Weight
- 7.5 lbs
798100-B21 Use Case
Carrier‐Grade Power Redundancy in Telco Core Racks
In a large‐scale telecommunications core facility, network operators deploy the HPE 798100-B21 6×2650W –48VDC Hot-Plug FIO Power Supply Kit to power carrier-grade switches and routers with N+2 redundancy. This configuration ensures uninterrupted voice and data services by allowing hot-swap replacement without system downtime, reducing mean-time-to-repair (MTTR) and delivering 99.999% uptime SLAs.
High-Density Edge Compute Pods for Hyperscale Data Centers
A global cloud provider integrates the HPE 798100-B21 6×2650W –48VDC Hot-Plug FIO Power Supply Kit into edge compute pods that host microservices and AI inference workloads. The compact, front-intuitive-operation (FIO) design streamlines power distribution, maximizes rack density and lowers cooling overhead, enabling 24/7 high-performance delivery with simplified field serviceability.
Industrial IoT Control Center with DC-UPS Integration
A manufacturing plant control room leverages the HPE 798100-B21 6×2650W –48VDC Hot-Plug FIO Power Supply Kit to feed PLC, SCADA and remote I/O modules through a centralized DC-UPS system. The robust –48VDC output and hot-plug capability guarantee seamless failover during grid disturbances, ensuring continuous process automation, minimizing production losses and meeting stringent industrial safety standards.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 798100-B21 |  669777-B21 |  JG136A |  JC087A |  753618-B21 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 1000W | 750W | 750W | 850W | 750W |
| Use Case | Gaming / Workstation | Gaming | Gaming | Gaming / Workstation / Enterprise Server | Gaming / Workstation / Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Semi-Modular | Modular | Modular | Modular |
| 80 PLUS Certification | Platinum | Gold | Gold | Platinum | 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 | UL | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS |
| Remote Monitoring | N/A | No | No | No | N/A |
| 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 | 135mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Dual Ball | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 94% | 92% | 94% | 94% | 92% |
| Protections | OCP, OVP, UVP, SCP, OTP, OPP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 1 | 1 | 1 |
| PCIe (6+2) Connectors | 4 | 2 | 2 | 2 | 2 |
| SATA Power Connectors | 8 | 4 | 6 | 6 | 6 |
| Molex Connectors | 4 | 2 | 2 | 4 | N/A |
| 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 | 798100-B21 High Performance Modular Power Supply | 669777-B21 High Performance Semi-Modular ATX PSU | JG136A High Performance Modular Power Supply | JC087A High-Efficiency Platinum Modular ATX Power Supply | 753618-B21 |
| Height | 5.9 in | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches |
| Width | 3.39 in | 6.3 inches | 3.4 inches | 8.6 inches | 6.3 inches |
| Depth | 5.51 in | 9.8 inches | 6.7 inches | 6.3 inches | 5.4 inches |
| Weight | 7.5 lbs | 4.8 lbs | 6.5 lbs | 3.2 lbs | 4 lbs |
Reviews & Ratings
S
Saif Mahmood
4
Hot-plug design minimized downtime during expansion.
D
Daniel Brooks
5
All PSUs delivered uniform, stable power.
U
Usman Tariq
4
Excellent for high-density data center racks.
L
Lars Svensson
5
Very dependable PSU bundle.
Questions & Answers
What is the HPE 798100-B21 Power Supply Kit?
The HPE 798100-B21 is a hot-pluggable power supply kit featuring six 2650W -48VDC FlexSlot modules designed for HPE Telecom servers.
Which HPE systems are compatible with SKU 798100-B21?
This power supply kit is compatible with HPE FlexFabric and FlexNetwork Telecom series chassis that support -48VDC FlexSlot modules.
How do I install the HPE 798100-B21 power modules?
Slide each hot-plug module into an empty FlexSlot bay until it clicks, connect the -48VDC feed cables, and verify LED status indicators turn green.
What redundancy configuration does the HPE 6x 2650W kit support?
The 6-module design supports N+1 and N+2 redundancy, ensuring continuous operation even if one or two modules fail.
What efficiency rating does the HPE 798100-B21 offer?
Each 2650W module delivers up to 96% efficiency at typical load, minimizing power waste and cooling requirements.
Are these power modules hot-swappable?
Yes, the HPE 798100-B21 modules are fully hot-swappable, allowing removal and replacement without shutting down the system.
What are the physical dimensions of each module?
Each FlexSlot module measures 49.3 mm (H) × 129.5 mm (W) × 357 mm (D) and weighs approximately 3.2 kg.
What safety certifications does this kit have?
The kit is UL, CE, CB and TUV certified, complying with global safety and EMC standards for telecom power supplies.
Do I need additional cables or accessories?
No, the kit includes all internal module interconnects; you only need to provide standard -48VDC feed cables per chassis requirements.
How can I verify proper operation after installation?
Check front-panel LEDs (green = normal), review system event logs in the HPE iLO interface, and monitor output voltage with the iLO power dashboard.
What warranty covers the HPE 798100-B21?
HPE backs this power supply kit with a one-year limited hardware warranty, extendable via HPE Care Pack services.
Can I mix these modules with other HPE power supplies?
No, only identical -48VDC FlexSlot modules of the same part number should be installed to ensure proper load sharing.
What cooling requirements apply to these modules?
They rely on chassis-integrated fans; maintain proper rack airflow and ambient temperatures between 5 °C and 45 °C.
How do I manage firmware updates for the power modules?
Use the HPE iLO or HPE Onboard Administrator interfaces to automatically detect and install firmware updates.
Where can I purchase genuine HPE 798100-B21 kits?
Order directly from HPE or authorized HPE channel partners to ensure authentic products, support, and warranty coverage.
What are the benefits of using -48VDC power in telecom environments?
-48VDC reduces the risk of corrosion, provides high voltage headroom for backup batteries, and aligns with standard telecom power infrastructures.