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    Supermicro 280W 1U Multi-Output Power Supply (PWS-281-1H)

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    Supermicro 280W 1U Multi-Output Power Supply (PWS-281-1H)

    Availability: In stock

    • Designed for Supermicro 1U Server
    • 24 Pin ATX Output
    • Active PFC for High Efficiency
    • Supermicro Certified

    Please Enter SKU# to Check Validation Status

    • System
    • Chassis
    SKU #:
    Check if your server system is validated with this product
    •System: Enter a server part number (e.g. SYS-1027B-MTF)
    SKU #:
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    •Chassis: Enter a chassis part number (e.g. CSE-743TQ-865B)


    The Supermicro PWS-281-1H is capable of 280W output power at high efficiency. Enjoy the simplicity of active power factor correction (PFC) and automatically correct AC input for a full range of voltages and a quiet fan to keep it cool under heavy loads. This power supply is designed to not only provide you reliable power to your Supermicro 1U server but also protects it from over voltage, over current and short circuiting via protective circuitry embedded into the unit. All materials contained comply with RoHS requirements and is certified by Supermicro.

    Cables Included:
    • 1x 24 Pin ATX (Motherboard)
    • 1x 4 Pin 12V (CPU)
    • 2x 4 Pin Legacy HDD
    • 1x 8 Pin PCI-E
    • 2x 4 Pin Floppy/DVD drive
    Detailed Specification

    Additional Information

    Total Power Output 280W / 330W
    Type Single
    Type of Power Supply Power Supply
    Form Factor 1U
    Dimension (W x H x L) 100 x 40.3 x 220 mm
    +5V 18A
    +12V 23A /27A
    +3.3V 15A
    5V Standby 2A
    Input Voltage Range 100-140V/ 180-240V
    Input Frequency Range 50Hz/ 60Hz
    Input Current Range 5A Max
    Output Type 24Pin ATX Cable Output
    8Pin / 4Pin (12V) Connector 4-Pin
    PFC Yes
    PMBus No
    Energy Efficiency N/A
    80 Plus Certification N/A
    Warranty 1 year warranty
    Product Environmental Compliance RoHS and REACH compliant, details available upon request
    Prop 65 Warning
    This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to