HuntKey 300W with 80 Plus Gold

We recently received a new power supply from HuntKey dubbed the R90, or Jumper 300G for the western markets. It uses the HK400-52PP layout, which means the PSU is capable of delivering 400W at lower temperatures; however, the 300W rating is for 45C operation. The 300G is also one of the smaller PSUs with an 80 Plus Gold rating, making it an interesting option for HTPCs and average computers. But what about the price?

We don't have an exact figure for the US market yet, but materials and parts should cost less than half of what the Seasonic X-400FL requires, which means final pricing could be around $80-$90. One advantage the Jumper 300G has over the X-400FL is that it uses a native 400W design, where Seasonic is building off an 850W design. Since the 300G comes with a fan, it will obviously generate more noise than the fanless X-400FL, but the temperatures should also be lower. This could very well be the actively cooled alternative to Seasonic's X-400FL.

Unlike Seasonic, this is a fixed cable PSU. The HK400 is similar to what many OEMs might use, only with a retail box around it. HuntKey is quite proud of their design and promises very good performance. While we may not have a firm price yet, we can certainly check the voltage quality and other performance characteristics.

Internally, the unit uses a resonant circuit with ZVS (Zero Voltage Switching), active rectifying, and of course active PFC. While HuntKey sells many cheap power supplies in China, this is an example of the sort of quality they can achieve when they're not chasing the lowest price; we'll see more evidence of this with the capacitors on page four. HuntKey is also one of the first manufacturers to offer an 80 Plus Platinum certified PSU, but that's a topic for another day. The Jumper 300G (or R90) has plenty of reserve capacity, and HuntKey makes use of this by including two PCIe connectors: one 6-pin and one 6/8-pin, both on a single cable. That's a first for the 300W PSU market, and with such features HuntKey hopes to expand their presence in the Asian market.

Appearance and Specifications
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  • SilthDraeth - Saturday, March 5, 2011 - link

    Kind of stinks that they take away the sleeves, and matte black paint for the American version. I guess shrink tubing isn't to costly... But still.
  • SirGCal - Saturday, March 5, 2011 - link

    Especially for the very high cost... It's the little things that start to matter at that price. Wraping and a nice finish is part of those things... Bummer too cause I might have considered it otherwise.
  • Mr Perfect - Monday, March 7, 2011 - link

    Yes, don't sell yourself short HuntKey. If you have a quality product, put some quality fit and finish on it. The plain looking case and cables makes the US version look cheap.
  • mindless1 - Saturday, March 12, 2011 - link

    It's teenagers or young males who think they are still that feel the need to try to impress others with visual interior effects on a PC, and even among those it is a very small # of the market. Most people's cases have a solid side panel w/o window and not only is it totally irrelevant to them whether it is black painted or sleeved, they couldn't even tell you what color their PSU is or whether it is sleeved.

    Put the PC out of the way and get some art on the wall if looks are important.
  • JasperJanssen - Monday, March 14, 2011 - link

    Well, the colour of a PSU does show out the back of a case, and sleeving has a functional effect, not jsuit a decorative one.
  • HangFire - Wednesday, March 16, 2011 - link

    A Gold rated power supply is going to appeal to system builders, modders and aficionado's who take pride in their work.

    "Most people" who use "Most people's cases" with a "solid side panel" will be buying the cheapest P/S available, which won't be this one.
  • Orville - Saturday, March 5, 2011 - link


    Make it fully modular with a good selection of cable lengths to choose from and I'll pay $100+. Bring on a 200 Watts unit of the same kind and I'll pay the same.

  • Martin Kaffei - Saturday, March 5, 2011 - link

    Who knows, maybe they will add another version later. I'm sure HuntKey cares about that. Or other manufacturer will.

    If HuntKey sells a lot of them other brands will follow. I'm looking forward to this situation since 300W Gold with modular cables is more interesting than 500W+ with Platinum.
  • richardginn - Saturday, March 5, 2011 - link

    to really see how much can run on this 300WATT PSU before it becomes worthless.
  • j-g-faustus - Saturday, March 5, 2011 - link

    I expect that I can run a moderately overclocked Sandy Bridge 2600K plus a GPU like GeForce GTS 450 (~100 W DC) and still stay below 80% of the 300 W capacity.

    This is based on my current 2600K@4.1GHz which draws 145 W from the wall with 8 Prime95 threads. Given 80% PSU efficiency this should be ~116 W DC, plus 100 W for a GPU is just 220 W DC total.

    Looking forward to this PSU, hoping that we will see more power supplies with low wattage and high efficiency.

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