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Corsair TX550M Power Supply Review

The TX550M is another good PSU by Corsair.

Corsair TX550M
(Image: © Tom's Hardware)

The Corsair TX550M (2021) is a very good PSU, managing to keep its relative performance below the RM550x (2021) which belongs in a higher category in Corsair's portfolio of products. If the TX550M scored higher than the model mentioned above, it would create a severe internal competition problem. The performance difference would be smaller, with a slightly better ripple suppression at 12V and better transient response at 3.3V. Still, the RM550x has a significant advantage in noise output. The TX550M is not noisy, but the RM550x behaves like a passively-cooled PSU! 

(Image credit: Tom's Hardware)

There are some worthy opponents in this category, including Super Flower's Leadex III Gold 550 unit, which also features RGB lighting, the be quiet! Pure Power 11 FM 550 and the Corsair RM550x. If you don't mind the semi-modular cable design, the TX550M is a good choice, and it comes with two EPS connectors, supporting even high-end mainboards and power-hungry CPUs. A major con for some can be the only three SATA connectors. There should be another SATA cable, increasing the number of the corresponding connectors to six. Nevertheless, this doesn't change much that the TX550M is worth your money. 

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Disclaimer: Aris Mpitziopoulos is Tom's Hardware's PSU reviewer. He is also the Chief Testing Engineer of Cybenetics and developed the Cybenetics certification methodologies apart from his role on Tom's Hardware. Neither Tom's Hardware nor its parent company, Future PLC, are financially involved with Cybenetics. Aris does not perform the actual certifications for Cybenetics.

Aris Mpitziopoulos
Aris Mpitziopoulos

Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.

  • WrongRookie
    Is there a way to tell if it supports full range input till 240v?
  • Tom Sunday
    Most of the PSU’s are made by a small group of manufacturers, and resellers simply buy those manufacturers PSU's and then rebrand them as their own products. I usually buy SeaSonic because pure and simple they are a manufacturer. They make all their own PSU’s and sell them to consumers. So going with a SeaSonic PSU is almost certainly to be a safe bet. I also found that resellers generally offer three to five-year warrenties on their PSU's, and Seasonic offers in many cases five to twelve-year waranties. This alone tells the story and in how much confidence the reseller usually has towards its selected manufacturer.

    In turn CORSAIR is a true reseller, not a manufacturer. This can be a big deal. They buy their PSU’s from their original manufacturers so the quality of their products ultimately depends on their original manufacturers or perhaps those manufacturers which returned the lowest fabrication bid on a large CORSAIR factory order. It can be difficult to find out where CORSAIR’s PSU’s come from as CORSAIR has routinely been using 3-5 different manufacturers and in diffrent countries. In time likes these where high wattage and or premium PSU’s (1200W-1600W) may easily exceed $400 plus to especially feed the upcoming 4000 series GPU craze, picking the right PSU becomes important! As one of the dealers at the recent computer show noted: “SeaSonic principally specializes in PSU’s while CORSAIR markets and sells hundreds of different products. “Go take your pick!”