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Power backplane restored full redundancy and stable power delivery.
814835-B21
HPE 900W AC 240VDC RPS Power Backplane
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814835-B21
- Description:
- HPE 900W AC 240VDC RPS Power Backplane
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814835-B21 Overview
814835-B21 delivers 850W of reliable power in a fully modular ATX design, certified with 80 PLUS Gold for high efficiency while operating on a wide input voltage range of 100–240V. It features an active PFC system paired with a robust 120mm fan using fluid dynamic bearings, and is equipped with essential protections including OCP, OVP, and SCP.
Optimized for high-performance gaming and workstation setups, this power supply offers a comprehensive suite of connectors: one ATX 24-pin, one EPS (CPU) 4+4 pin, two PCIe (6+2) connectors, six SATA power connectors, and four Molex connectors. Built with high-quality sleeved cables, it achieves a 94% efficiency rating and incorporates zero RPM mode for superior low-noise operation.
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814835-B21 Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Gaming / Workstation
- 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
- 94%
- Protections
- OCP / OVP / SCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- PCIe (6+2) Connectors
- 2
- 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
- 814835-B21 High Performance ATX Power Supply
- Height
- 5.4 inches
- Width
- 5.9 inches
- Depth
- 8.4 inches
- Weight
- 4.8 lbs
814835-B21 Use Case
Enterprise Data Center Redundancy with 814835-B21-HPE 900W AC 240VDC RPS Power Backplane
In mission-critical enterprise data centers, the 814835-B21-HPE 900W AC 240VDC RPS Power Backplane provides seamless dual-input power redundancy for HPE ProLiant server clusters, ensuring 99.99% uptime and SLA compliance by enabling instant failover between AC and DC sources.
Telecommunications Core Network Resilience leveraging 814835-B21-HPE 900W AC 240VDC RPS Power Backplane
Telecom central offices integrate the 814835-B21-HPE 900W AC 240VDC RPS Power Backplane with HPE switch stacks to support hot-swappable AC/DC modules, cutting maintenance-induced outages by 50% and guaranteeing uninterrupted voice and data services.
Edge Computing Continuity with 814835-B21-HPE 900W AC 240VDC RPS Power Backplane
Remote edge and IoT sites deploy the 814835-B21-HPE 900W AC 240VDC RPS Power Backplane for compact, high-efficiency backup power, reducing energy usage by 15% while delivering continuous data processing and low-latency analytics in harsh environments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 814835-B21 |  503296-B21 |  876930-B21 |  J2R10A |  J2R02A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 850W | 650W | 600W | 600W |
| Use Case | Gaming / Workstation | Gaming | Workstation / Gaming | Gaming / Workstation | Gaming / Workstation |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Semi-Modular | Modular | Semi-Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Multi Rail | Single Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS | 80 PLUS / CE / FCC / 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 | 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 | Fluid Dynamic | Dual Ball |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 94% | 94% | 94% | 94% | 92% |
| Protections | OCP / OVP / SCP | OCP / OVP / UVP / OTP | OCP / OVP / SCP / OTP | OCP, OVP, SCP | OCP / OVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 1 |
| PCIe (6+2) Connectors | 2 | 4 | 2 | 2 | 2 |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Molex Connectors | 4 | 2 | 4 | 3 | 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 | 814835-B21 High Performance ATX Power Supply | 503296-B21 850W Fully Modular ATX Power Supply | 876930-B21 High Performance Power Supply | J2R10A High Performance Modular ATX Power Supply | J2R02A 600W Semi-Modular ATX Power Supply |
| Height | 5.4 inches | 5.5 inches | 5.0 inches | 5.5 inches | 5.5 inches |
| Width | 5.9 inches | 6 inches | 6.3 inches | 8.6 inches | 6.3 inches |
| Depth | 8.4 inches | 7 inches | 5.5 inches | 5.9 inches | 3.1 inches |
| Weight | 4.8 lbs | 4.5 lbs | 4.2 lbs | 4.85 lbs | 4.5 lbs |
Reviews & Ratings
R
Rizwan Ali
4
OEM component fit perfectly and worked immediately.
N
Niels Bakker
5
Solid build quality with dependable performance.
K
Kevin Moore
3
Essential replacement for power reliability.
J
Jasper Veen
4
Reliable and easy to install.
Questions & Answers
What is the HPE 900W AC 240VDC RPS Power Backplane (SKU: 814835-B21)?
The HPE 900W AC 240VDC RPS Power Backplane (814835-B21) is a redundant power supply interface module that distributes AC and 240VDC power across HPE server enclosures for improved uptime.
Which HPE server models are compatible with the 814835-B21 Power Backplane?
The 814835-B21 Power Backplane is compatible with HPE ProLiant DL380 Gen9/Gen10 and select Gen8 rack servers when paired with the appropriate RPS and power supply modules.
How do I install the 814835-B21 RPS Power Backplane?
Slide the backplane into the designated bay in your HPE chassis, secure it with the captive screws, then connect the RPS cables to the backplane port as per the HPE installation guide.
What are the power input and output specifications of this backplane?
This backplane accepts dual 900W AC (100–240V) or 240VDC inputs and delivers redundant power to the server’s power supply modules, ensuring continuous operation.