Delivery Contents and Specifications

The power supply comes in a dark box with various product specifications listed across all the sides. The package prominently displays the 80 Plus Platinum certification, which can certainly help attract potential buyers. 90%/92%/89% efficiency at 20%/50%/100% load are the requirements and these values are difficult to reach. In addition Rosewill offers a 7-year warranty. Features include the special black coating and the single 12V output. All the necessary extras for installation are present, including the usual stuff like a power cord, screws, manual, and several cables ties.

At first we were not able to identify the manufacturer of this fan as Rosewill is the only name we saw on the label. However, the model number RL4ZB1352512M indicates that GlobeFan is the company behind this product. This is a ball bearing type which takes 0.28A. At best GlobeFan is slightly better than Yate Loon, but it could have been worse since many brands still use sleeve bearings—even in expensive PSUs.

The Fortress has one 12V output, which can be loaded with 37A according to the manufacturer. Almost the full power is provided here because of the DC-to-DC VRM. The 5V and 3.3V combined output power is just 100W, but even such ratings are enough to power a modern PC. +5VSB can handle 2.5A (or 12.50W).

Rosewill Fortress Platinum 450W External Impressions and Cables
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  • Jerman - Saturday, September 15, 2012 - link

    Minor gramattical error on the final page:
    but the Rosewill Fortress 450W is currently one the most advanced consumer power supply available.

    Forgot an "of" after one... Thanks for the great article though!
  • jigglywiggly - Monday, September 17, 2012 - link

    you guys are such fagets
    i read this just fine
    if you get pissed off over gramatical errors on the internet
    you're going to have a bad time
  • pattycake0147 - Monday, September 17, 2012 - link

    That's because you're reading it after the editing. I'm reading it again now, and I agree that it does read fine now. Thanks for the improvements AT.
  • KenRico - Monday, September 17, 2012 - link

    Was challenged to find a good PS under $100 and shopped for single 12v rail unit.

    More challenging than I anticipated, but much easier to wade through than the benenfits of bronze vs platinum vs gold ect. Customer loves Seasonic and usually buys their Platinum 850W .

    Ended up with another Seasonic : SeaSonic M12II 650 SS-650AM 650W BRONZE Semi-modular . Good quaility and happy client.

    Got lucky was on sale, and dropped pretty close to disty price without a min or freight .

    In my tired Core i5 750 running a Rosewill 600W $40 special - with no big video to drive and no other PS below $70 really standing out has been a budget driven decision that has held up.

  • hasseb64 - Tuesday, September 18, 2012 - link

    "In short, Bronze gets you 95% of the efficiency of Gold for about 2/3 the cost, and 92% of the efficiency of Platinum for about half the price. A typical system that draws around 75W at idle would save 8W going from Bronze to Platinum. At that rate and paying $0.10 per kWh, you save $7 per year when running the PC 24/7. For servers and other PCs that are on 24/7 already and consume a lot more power, efficiency can make a lot of sense (e.g. power savings of around $40 per year for a 500W server using the same $0.10 per kWh), but for home users there needs to be something more than just pure efficiency to make the increased cost worthwhile"

    Why ON earth must a PSU treated from a economical viewpoint? Just because there is a saving dosent mean that that have to be compared to the investment? Are PRIVATEs now all bound to corporate investment rules? A PSU is one of few products you can buy were it is possible to save energy / money, still it is a PRODUCT and should be treated as a iPHONE or a any other product. Do you private buyer have any other source were you can do savings/investments at a higher rate / lower risk than a PSU? Therefor leave all discussions of pure savings OUT of the reviews of PSUs.

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