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StarTech.com ATX Replacement Desktop Computer Power Supply - 300W - ATXPOWER300

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  • Premium EMI/RFI power filtration system provides low noise/ripple for super clean and stable power to all system components
  • ATX version 2.03 and ATX12V compliant
  • Provides a maximum output power of 300 watts
  • High-Flow fan provides efficient cooling for the system and power supply
  • High quality connectors provide minimal resistance and enhanced electric conductivity

This StarTech.com power supply offers an upgrade or replacement to a variety of Intel or AMD-based ATX desktop computer systems. Compliant with the industry standard ATX specification and using the standard ATX form-factor, this power supply (PSU) can be used as a replacement in a variety of popular OEM desktop systems.

Conforming to ATX revision 2.03, this power supply features a 20-pin ATX power connector and 6-pin AUX power connector, for support for older, legacy computer systems, as well as some newer, low powered systems with it's ATX12V connector. High quality components and a built in 80mm cooling fan lend to a durable and reliable power supply.


  • Box Contents

    300W ATX Power Supply
    Power Cord (110V)
    Instruction Manual

  • Brand Description


  • Compatibility

    Replacement for standard 250W & 300W ATX12V Power Supplies

  • Connectivity


  • Dimensions (WxDxH)

    149 x 85 x 150mm

  • Features

    Fan Bearing Type: Sleeve Bearing
    Fans: 1 - 80 mm
    Air Flow Rate: 32.3 CFM
    Efficiency Rating: >65% (Typical Load)
    Fan RPM: 3000 RPM +/-10%
    MTBF: 40,000 Hrs
    Noise Level: 27.4 dBa
    Output Power: 300W
    Power Factor Correction: No

  • Model


  • Ports Qty

    1 - ATX 12V P4 Power (4 pin, v 2.x) Male
    1 - ATX AUX Power (6 pin, v 1.x) Female
    1 - ATX Power (20 pin, v 1.x) Male
    1 - SATA Power (15 pin) Receptacle
    2 - SP4 (4 pin, Small Drive Power) Female
    6 - LP4 (4 pin, Molex Large Drive Power) Female

  • Power

    Current: +12.0V1 (A) 15A
    Current: +3.3V (A) 28A
    Current: +5.0V (A) 30A
    Current: +5.0Vsb (A) 2A
    Current: -12.0V (A) 0.8A
    Current: -5.0V (A) 0.3A
    Input Current: 8A ~ 4A
    Input Voltage: 115~230
    Max Inrush Current: 50

  • Size


  • Weight

    1.9 kg