Sub-$75 Mainstream Power Supply Roundup

Huntkey Jumper 450B: Measurements

Efficiency meets 80 PLUS specifications:

Efficiency under different load profiles:

We anticipated seeing solid efficiency measurements since this is one of our 80 PLUS Bronze units. We were not disappointed. The Huntkey Jumper 450B achieved the best results in almost all of our tests. The PSU hit its efficiency peak of 87% at 230 V and 300 W, managed to stay above 80% all the way down to 50 W, and even managed a respectable 73% efficiency at 25 W. All of this is very good. The overload test showed that the PSU does not have the high margins of other test candidates, switching off at a load of 517 W. Remaining tests on the Jumper 450B revealed no further weaknesses.

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  • mi1ez
    1) Stop moaning about PSU.s that aren't available in the US.
    2) Where are the actual voltages for each rail? It feels like most of this test is missing!
  • swamprat
    I can't say I've read every page - but are there noise readings anywhere as well as the occasional comment like "it's quiet"?
  • Anonymous
    Small PSU means desktop/media.... and since the conclusion was "they're all pretty similar" then noise is going to be one of the main selection criteria. So... no real help in choosing :(
  • stone-69
    Uhm... just a newbie question :
    Are cheap PSUs really that bad ?
    I mean I've seen a lot of people basically saying that a cheap PSU will make your PC explode (or something along that note), but I've seen very few thorough reviews of cheap PSUs testing ripple, noise and voltage drops.
    Could this be an idea for a future article ?