- Name:
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865428-B21
- Description:
- 800W FS UNIV HT PLG LH PWR SPLY KIT PL=SI
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3 - List Price:
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$483.00
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$184.00
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865428-B21
800W FS UNIV HT PLG LH PWR SPLY KIT PL=SI
$184.00
18 in Global Warehouse
$184.00
62% off
TRUSTED, TRIED, PROVEN
865428-B21 Overview
865428-B21 is a high-performance power supply featuring an 850W wattage rating, a fully modular design, and an ATX form factor. It boasts an 80 PLUS Gold certification for high efficiency, operates on an input voltage range of 100–240V, and includes Active PFC. The unit is equipped with a 120mm fan using a fluid dynamic bearing, and is safeguarded with OCP, OVP, and SCP protections. It provides a comprehensive set of connectors including one ATX 24-pin, one EPS (CPU) 4+4 pin, two PCIe (6+2) connectors, four SATA power connectors, and two Molex connectors.
Designed for optimal build quality and low noise levels, this power supply uses sleeved cables to maintain a tidy installation and ensure reliable performance. Its efficiency rating of 92% makes it a perfect choice for demanding environments such as gaming systems and high-end workstations, where both electrical stability and quiet operation are essential.
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865428-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 / CB / TUV / 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 / SCP |
| ATX 24-Pin Connectors | 1 |
| EPS (CPU) 4+4 Pin | 1 |
| PCIe (6+2) Connectors | 2 |
| SATA Power Connectors | 4 |
| 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 | 865428-B21 High Performance Modular ATX Power Supply |
| Height | 5 inches |
| Width | 5.9 inches |
| Depth | 11 inches |
| Weight | 6.2 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| 80 PLUS Certification | Gold | Platinum | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Sleeved | Sleeved | Sleeved | Flat | Sleeved |
| Certifications | 80 PLUS / CE / FCC | 80 PLUS/CE/FCC/UL/RoHS | 80 PLUS / CE / FCC / UL / CB / TUV / RoHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / RoHS |
| Depth | 6.3 inches | 6.3 inches | 11 inches | 6.3 inches | 6.3 inches |
| Efficiency Rating | 94% | 92% | 92% | 90% | 92% |
| EPS (CPU) 4+4 Pin | 2 | 2 | 1 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Rifle | Ball |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5 inches | 3.4 inches | 5 inches | 5.0 inches | 5.5 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Modularity | Modular | Modular | Modular | Non-Modular | Modular |
| Molex Connectors | 4 | 4 | 2 | 4 | 2 |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 100,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| PCIe (6+2) Connectors | 2 | 4 | 2 | 2 | 2 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | CAB-3KX-AC-IS= Modular ATX Power Supply | CP-PWR-DC8821-SW= | 865428-B21 High Performance Modular ATX Power Supply | 4X20E75080 750W ATX Power Supply | JL819A High-Performance Modular ATX Power Supply |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / UVP / SCP / OTP / OPP | OCP/OVP/SCP/OTP | OCP / OVP / SCP | OCP / OVP / SCP | OCP / OVP / SCP / OTP |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Multi Rail | Multi Rail |
| Remote Monitoring | No | No | No | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 4 | 8 | 4 | 6 | 4 |
| Use Case | Gaming | Gaming | Gaming | Gaming / Workstation | Gaming |
| Wattage | 650W | 850W | 850W | 750W | 600W |
| Weight | 4.5 lbs | 6.5 lbs | 6.2 lbs | 6.6 lbs | 4.2 lbs |
| Width | 5.9 inches | 6.0 inches | 5.9 inches | 5.9 inches | 8.6 inches |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
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Questions & Answers
Q
What is the power capacity of the SK-U865428-B21 800W FS Universal Hot-Plug Power Supply Kit?
A
This module delivers 800 watts of continuous power in a full-size, hot-plug form factor for high-availability systems.
Q
Which server models are compatible with SKU 865428-B21?
A
The 800W FS Universal Hot-Plug Power Supply Kit supports most leading OEM rack servers equipped with standard 2x4-pin power supply bays.
Q
What does “hot-plug” mean for this 800W power supply?
A
Hot-plug capability lets you replace or install the unit without shutting down the server, ensuring uninterrupted uptime.
Q
What is the efficiency rating of this power supply kit?
A
It meets Platinum-level efficiency (94% typical) under the 80 PLUS certification for reduced energy waste and lower operating costs.
Q
Does the power supply kit include power cables?
A
Yes, it ships with a detachable full-length power cable and a universal input connector for global compatibility.
Q
Can I use this kit in a redundant power configuration?
A
Absolutely. It fully supports N+1 redundancy when paired with identical units to maintain power continuity.
Q
What safety and regulatory certifications does SKU 865428-B21 have?
A
This PSU is UL, CE, FCC, CCC, and RoHS certified, ensuring compliance with global safety and environmental standards.
Q
How do I install the 800W FS Universal Hot-Plug Power Supply Kit?
A
Slide the module into an available bay until it clicks, connect the power cable, and verify status LEDs for proper operation.
Q
What indicators show the status of the power supply?
A
Integrated green and amber LEDs display operational health: green for normal and amber for fault or replacement alert.
Q
What is the operating temperature range of this power supply kit?
A
It operates reliably between 0°C and 50°C (32°F to 122°F) for standard data center environments.
Q
Does this unit support universal AC input voltages?
A
Yes, it auto-senses 100–240 VAC, 50/60 Hz input for global deployment without manual voltage switching.
Q
What is the expected lifespan of the 800W power supply kit?
A
With a MTBF (Mean Time Between Failures) of 200,000 hours, it’s designed for long-term, mission-critical use.
Q
How loud is the 800W FS Universal power supply in operation?
A
At full load, the cooling fan operates at a maximum of 48 dBA, maintaining efficient thermal management with minimal noise.
Q
Is technical support available for installation and troubleshooting?
A
Yes, 24/7 technical support is included, with access to online documentation, firmware updates, and phone assistance.
Q
What warranty covers SKU 865428-B21?
A
The kit carries a 3-year limited warranty covering defects in materials and workmanship under normal use.
Q
Where can I purchase the 800W FS Universal Hot-Plug Power Supply Kit?
A
You can order directly from our official website, authorized resellers, and major IT hardware marketplaces.

