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Corsair TX550M & TX750M Power Supply Review





Price Per Wattage:

Corsair TX550M 550W Power Supply at $89.99 = $0.16/Watt (02-2012)


The Corsair TX550M power supply comes well-packaged with good build quality and a decent set of accessories.

The DC voltage load regulation is generally good, with a worst case -3.6% on the +3.3V rail. The noise/ripple values, on the other hand, could be better although it manages to stay within the limits set down by the ATX12V specification, but only just. The efficiency/power factor correction of the TX550M is on a par with other power supplies in this class, as tested by the OCC power supply methodology.

The Corsair TX550M is a decent enough offering that brings the option of modular cables to the ever-popular TX range at a competitive price. It's well made and performs well, so it's certainly capable of reliably powering a powerful gaming PC with a single high end graphics card.



  • Good voltage regulation
  • 5 year warranty
  • Plenty of connectors
  • 80 Plus Bronze



  • Ripple/Noise levels could be better


  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: DC Voltage Load Regulation (Cont.)
  6. Testing: Efficiency, Power Factor
  7. Testing: DC Quality
  8. Testing: Temperature, Noise Level & Fan Speed
  9. Conclusion: TX550M
  10. Conclusion: TX750M
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