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814835-B21
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- HPE 900W AC 240VDC RPS Power Backplane
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Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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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
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|---|---|---|---|---|---|
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| Certifications | 80 PLUS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / RoHS |
| Depth | 7 inches | 5.9 inches | 3.1 inches | 8.4 inches | 5.5 inches |
| Efficiency Rating | 94% | 94% | 92% | 94% | 94% |
| EPS (CPU) 4+4 Pin | 2 | 1 | 1 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Dual Ball | Fluid Dynamic | Fluid Dynamic |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5.5 inches | 5.5 inches | 5.5 inches | 5.4 inches | 5.0 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Modularity | Modular | Modular | Semi-Modular | Modular | Semi-Modular |
| Molex Connectors | 2 | 3 | 4 | 4 | 4 |
| 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 |
| PCIe (6+2) Connectors | 4 | 2 | 2 | 2 | 2 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | 503296-B21 850W Fully Modular ATX Power Supply | J2R10A High Performance Modular ATX Power Supply | J2R02A 600W Semi-Modular ATX Power Supply | 814835-B21 High Performance ATX Power Supply | 876930-B21 High Performance Power Supply |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / UVP / OTP | OCP, OVP, SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP / OTP |
| Rail Configuration | Multi Rail | Single Rail | Single Rail | Single Rail | Single Rail |
| Remote Monitoring | No | No | No | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Use Case | Gaming | Gaming / Workstation | Gaming / Workstation | Gaming / Workstation | Workstation / Gaming |
| Wattage | 850W | 600W | 600W | 850W | 650W |
| Weight | 4.5 lbs | 4.85 lbs | 4.5 lbs | 4.8 lbs | 4.2 lbs |
| Width | 6 inches | 8.6 inches | 6.3 inches | 5.9 inches | 6.3 inches |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
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Questions & Answers
Q
What is the HPE 900W AC 240VDC RPS Power Backplane (SKU: 814835-B21)?
A
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.
Q
Which HPE server models are compatible with the 814835-B21 Power Backplane?
A
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.
Q
How do I install the 814835-B21 RPS Power Backplane?
A
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.
Q
What are the power input and output specifications of this backplane?
A
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.
Q
Does SKU 814835-B21 support hot-swapping?
A
Yes, the HPE 900W RPS Power Backplane supports hot-swap removal and insertion, allowing maintenance without server downtime.
Q
How does the backplane improve server redundancy?
A
By distributing power from two independent RPS units, the backplane eliminates single points of failure and allows seamless failover in case one supply loses power.
Q
What LEDs indicate backplane status?
A
Two front-panel LEDs show power availability (green) and fault conditions (amber), enabling quick status checks and troubleshooting.
Q
Is firmware required for the 814835-B21 backplane?
A
No separate firmware is needed; the backplane operates with the server’s integrated Lights-Out (iLO) firmware for monitoring and management.
Q
What environmental conditions does the backplane support?
A
It operates in data center environments from 10°C to 35°C (50°F to 95°F) with 8%–90% non-condensing humidity, per HPE recommendations.
Q
What are the physical dimensions of this backplane?
A
The backplane measures 44.5 mm (H) x 215 mm (W) x 200 mm (D) and weighs approximately 1.2 kg, fitting standard 2U rack chassis bays.
Q
Does HPE provide warranty for the 814835-B21 backplane?
A
Yes, HPE offers a standard three-year limited warranty covering defects in materials and workmanship, with optional warranty extensions.
Q
Can I mix AC and DC power supplies on this backplane?
A
No, the backplane requires either dual AC inputs or dual 240VDC inputs; mixing input types is not supported and may damage components.
Q
How is troubleshooting performed for power faults?
A
Use the server’s iLO interface to view power supply logs, inspect the amber fault LED on the backplane, and swap RPS modules to identify the faulty unit.
Q
What benefits does this backplane offer over single-supply setups?
A
It delivers true power redundancy, balanced load sharing, and reduces unplanned downtime by allowing live replacement of failed supplies.
Q
Is remote management supported for the backplane?
A
Indirectly, yes—remote monitoring and alerting are handled through the server’s iLO management processor, which reports backplane status.
Q
Where can I purchase replacement parts for the 814835-B21 backplane?
A
Replacement modules and accessories are available through authorized HPE resellers, the HPE Parts Store, or vetted third-party distributors.
