Supermicro Switching Power Supply / Power Supply 740W PWS-741P-1R

Technical Specifications: Supermicro 740W Power Supply Unit

General Product Information

• Brand: Supermicro

• Model Number: PWS-741P-1R

• Product Type: Switching Power Supply Unit (PSU)

• Form Factor: 1U Redundant Profile (Supermicro Proprietary)

• Dimensions (W x H x L): 76 mm x 40 mm x 336 mm (2.99″ x 1.57″ x 13.23″)

Electrical Specifications & Input/Output Ratings

• Total Output Power: 740 Watts

• Input Voltage Range: Auto-ranging Alternating Current (AC) input

  • 100 – 240V AC: 50 – 60 Hz, Maximum 9A – 3.5A

• DC Output Rails:

  • +12V Main Rail: Maximum 61.5A

  • +12Vsb Standby Rail: Maximum 4A

Efficiency & Certification

• 80 PLUS Certification: 80 PLUS Platinum Certified

• Efficiency Rating: Exceeds 94% efficiency under typical operating workloads, reducing power loss and optimizing thermal generation.

Physical & Functional Features

• Hot-Swap Capability: Yes (Supports $1+1$ hot-pluggable redundancy when installed in compatible multi-PSU chassis).

• Cooling System: Integrated 1x 40mm internal cooling fan with automated speed control based on system temperature and power draw.

• Output Connector: Card Edge (Gold finger connection type).

• Status Indicators: Single multi-color rear LED status indicator providing visual readouts for:

  • Solid Green: Power OK / Normal Operation

  • Blinking Green: Standby Mode / AC Present

  • Solid Red / Amber: Power Supply Failure / Fault Condition

System Compatibility

This PSU module is widely implemented across a broad range of Supermicro 1U/2U/3U rackmount server chassis and SuperServer architectures, including but not limited to:

• Chassis Series: CSE-815, CSE-825, CSE-826, CSE-836

• Server Platforms: Optimized for Intel Xeon and AMD EPYC enterprise server platforms requiring stable, high-efficiency power delivery.