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Thomas Keller
5
HVDC PSU performed reliably in demanding infrastructure setups.
798342-B21
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HPE 2650W HVDC Ht Plg PS Kit
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798342-B21
- Description:
- HPE 2650W HVDC Ht Plg PS Kit
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798342-B21 Overview
798342-B21 is an 850W high-performance ATX power supply designed as a fully modular unit with a Gold 80 PLUS certification. It features an input voltage range of 100–240V, Active PFC, and a 120mm fan with a Fluid Dynamic bearing that ensures efficient cooling and reduced acoustic noise. The unit comes equipped with comprehensive protections including OCP, OVP, UVP, SCP, and OTP, guaranteeing reliable power delivery under a variety of demanding conditions.
Built with robust construction and premium sleeved cables, 798342-B21 caters to a wide range of use cases from high-end gaming rigs to professional workstations and servers. Its connector configuration includes a 24-pin ATX connector, dual 4+4 EPS connectors, four 6+2 PCIe connectors, eight SATA power connectors, and four Molex connectors, making it a versatile choice for modern system builds requiring both performance and reliability.
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798342-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Gaming
- 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
- 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
- 798342-B21 High Performance Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 8.6 inches
- Depth
- 6.3 inches
- Weight
- 4.5 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 798342-B21 |  JD362A |  JG745A |  J9443A |  820792-B21 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 650W | 750W | 850W | 850W |
| Use Case | Gaming | Gaming | Gaming | Gaming / Workstation | Enterprise Server / Workstation / Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Semi-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 / TUV / RoHS | 80 PLUS / CE / FCC / UL / ROHS | UL | 80 PLUS / CE / FCC / UL |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 110–240V |
| 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 | 135mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Dual Ball | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 92% | 92% | 92% | 92% |
| Protections | OCP, OVP, UVP, SCP, OTP | OCP, OVP, SCP | OCP / OVP / UVP / SCP / OTP | OCP/OVP/UVP/OPP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 2 | 1 | 1 | 2 |
| PCIe (6+2) Connectors | 4 | 3 | 2 | 2 | 2 |
| SATA Power Connectors | 8 | 8 | 6 | 6 | 6 |
| Molex Connectors | 4 | 4 | 3 | 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 | 798342-B21 High Performance Modular ATX Power Supply | JD362A High Performance Gaming Power Supply | JG745A High-Efficiency Modular Power Supply | J9443A High-Performance ATX Power Supply | 820792-B21 850W Modular ATX Power Supply |
| Height | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches | 5.5 inches |
| Width | 8.6 inches | 3.4 inches | 6.3 inches | 5.9 inches | 6.3 inches |
| Depth | 6.3 inches | 6.0 inches | 5.4 inches | 7.0 inches | 3.4 inches |
| Weight | 4.5 lbs | 9 lbs | 4.2 lbs | 6.2 lbs | 4.2 lbs |
Reviews & Ratings
H
Hamza Iqbal
4
Smooth installation and consistent output.
R
Ryan Cooper
5
OEM unit worked flawlessly from day one.
I
Imran Siddiq
5
Ideal for high-voltage DC environments.
M
Mikko Laine
5
Strong and stable power delivery.
Questions & Answers
What is the HPE 2650W HVDC Ht Plg PS Kit (SKU: 798342-B21)?
The HPE 2650W HVDC Hot-Plug Power Supply Kit (798342-B21) is a high-efficiency, 2650-watt DC server power module designed for HPE blade and rack servers, enabling nonstop operation through hot-swappable redundancy.
Which HPE server models are compatible with the 798342-B21 power supply?
The 798342-B21 kit is compatible with HPE c-Class blade enclosures (C7000, C3000) and select ProLiant DL server series that support high-voltage direct current (HVDC) power modules.
How do I install the HPE 2650W HVDC hot-plug power supply?
To install, align the module with the server’s power bay, slide it firmly until it clicks, and verify LED indicators turn green; no shutdown is required due to hot-plug capability.
What are the input voltage requirements for this HVDC power kit?
The 798342-B21 power supply requires an HVDC input between 380V and 400V, delivering up to 2650W to the server’s internal power distribution system.
Can I mix HVDC and AC power supplies in the same HPE enclosure?
No, HPE enclosures must use uniform power supply types; mixing HVDC and AC modules in the same chassis is not supported.
What redundancy options does the 2650W HVDC power supply support?
The 798342-B21 supports N+1 and N+N redundancy configurations, ensuring continuous server operation if one module fails or is removed.
How do I verify the health status of the power supply?
Monitor the integrated LED display and use HPE iLO or Onboard Administrator for real-time power metrics, temperature, and fault alerts.
What safety certifications does the HPE HVDC power kit have?
The 798342-B21 is UL, CE, and TUV certified, meeting global safety and electromagnetic compatibility (EMC) standards for data center environments.
Does the power supply support Overload Protection?
Yes, the 2650W HVDC module features built-in electronic overload protection, automatically throttling or shutting down to prevent damage under excess load.
What is the typical efficiency rating of the HPE 2650W HVDC power supply?
This HVDC power kit operates at up to 96% efficiency under typical data center loads, reducing energy waste and cooling costs.
How long is the warranty for SKU 798342-B21?
HPE provides a three-year limited warranty on the 2650W HVDC hot-plug power supply, with optional extension available via HPE Care Pack services.
How do I order replacement modules or spares?
Order genuine HPE spares through authorized HPE Partners or directly via the HPE Parts Store using SKU 798342-B21 for accurate procurement.
Can I service the power supply while the server is running?
Yes, the hot-plug design allows safe removal and replacement of the 2650W HVDC module without interrupting server operations, provided redundancy is active.
What are the dimensions and weight of the power kit?
The module measures 219 mm x 87 mm x 41 mm (8.6″ x 3.4″ x 1.6″) and weighs approximately 1.2 kg (2.6 lbs), fitting standard HPE power bays.
How does HVDC power improve data center performance?
HVDC reduces conversion losses, improves overall system efficiency, and lowers cooling requirements, delivering cost savings and higher power density.
What environmental conditions are required for safe operation?
Operate at 10–35°C (50–95°F), 5–85% relative humidity (non-condensing), and an altitude up to 3,000 meters to ensure compliance with HPE data center guidelines.
Where can I find detailed documentation for the 798342-B21 power kit?
Access the HPE Support Center online to download the QuickSpecs, user guide, and installation instructions for the 2650W HVDC hot-plug power supply.