Description
The Supermicro PWS-920P-SQ is a high-efficiency, 920-watt redundant power supply module designed for 1U server and storage chassis. Known for its “Super Quiet” (SQ) operation, it is a preferred choice for corporate environments and home labs where noise reduction is critical without sacrificing enterprise-grade reliability.
Key Features and Performance
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80 PLUS Platinum Efficiency: Certified to deliver up to 94% efficiency, significantly reducing energy waste and heat generation.
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Super Quiet (SQ) Design: Engineered with advanced fan speed control and acoustic dampening to operate at much lower noise levels than standard server power supplies.
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Hot-Swappable Redundancy: Supports $N+1$ redundancy, allowing you to replace a faulty module while the system is running to ensure zero downtime.
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Remote Management: Fully supports PMBus 1.2, enabling administrators to monitor power consumption, temperature, and status remotely via the server’s BMC/IPMI.
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Comprehensive Protection: Includes built-in circuitry to protect against over-voltage, over-current, and short circuits.
Technical Specifications
| Attribute | Detail |
| Max Power Output | 920 Watts |
| Efficiency Rating | 80 PLUS Platinum (94%+) |
| Input Voltage | 100V – 240V AC (Auto-ranging) |
| Output Current | +12V (75A), +5Vsb (4A) |
| Connector Type | Gold Finger (19-pair edge connector) |
| Form Factor | 1U (76 x 336 x 40 mm) |
| MTBF | >150,000 hours |
Compatibility
The PWS-920P-SQ is a standard 1U form factor module compatible with a wide range of Supermicro chassis. It is often used as a quiet upgrade for the noisier PWS-920P-1R or PWS-721P-1R modules.
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Chassis Series: CSE-216, CSE-826, CSE-847, and many other 1U/2U/3U/4U models that use a 19-pair Gold Finger backplane.
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Validated Systems: Supports various SuperServer and SuperStorage nodes including the 2U Twin and FatTwin series.






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