With GPU cryptocurrency mining apparently here to stay, over the last couple of years hardware vendors have begun developing mining-optmized (or at least branded) gear for miners. This of course extends to power supplies, as a stable and high-quality power supply is one of the key requirements for a high-uptime mining operation. This has resulted in a focus on high-wattage PSUs, particularly those with numerous PCIe power connectors for accelerators. To that end, a number of manufacturers have already been offering 1 – 2 kW PSUs for mining for some time now, however Afox and Qdion have decided to up the ante even more and introduce 3 and 3.3 kW power supplies this year.

Afox was originally established by Foxconn in 2008 to sell AMD Radeon graphics cards, but the brand has never become really popular outside of certain regions. Over the years, it added numerous product categories, including PSUs, SSDs, miniature PCs and even tablets. Since many GPU buyers nowadays use them for mining, it is not surprising that the company introduced its 3.3 kW PSU designed specifically for this kind of activity.

Foregoing any intent to adhere to PC case specifications, the Afox 3300 W PSU (AFMPS-3300A1) looks like (and likely is very similar to) two power supplies in one enclosure, with a total size to match. Obviously, miners do not use cases, so for them such inflexibility does not really matter. What matters is that the PSU can feed 12 graphics cards with its massive +12V/270A output and can support almost any GPU that is on the market today. In addition, the power supply has nine SATA connectors and even a Molex connector for a just-in-case scenario, but evidently SATA cables are hardly ever used by the target audience of the 3.3 kW beast. Meanwhile, the AFMPS-3300A1 has an 8-pin EPS connector, so hardcore overclockers with HEDT motherboards that require one of these could use the 3300 W PSU too for their liquid nitrogen or liquid helium experiments.

Update 6/25: Afox has released a new version of its PSU with a 16A-rated power connector.

It is noteworthy that the AFMPS-3300A1 is so not aimed at consumers that Afox didn't even bother to get an 80 Plus rating on it, so we can only wonder how efficient this product is.

Qdion is another supplier that has a ~3 kW massive PSU that looks like two power supplies glued together in one box. Qdion is a subsidiary of FSP that offers entry-level products on select markets, but it looks like the manufacturer decided to use the trademark for a specialized product too.

Just like the 3.3 kW PSU from Afox, Qdion’s QD3050 90% ATX power supply comes with a massive number of PCIe power connectors to feed a dozen of GPUs with its +12V/248A output. The unit also has numerous SATA power plugs, but no EPS, so this one will not appeal to hardcore overclockers. One funny thing to note about this power supply is that it has a 90 Plus badge on it, which officially does not exist. In the meantime, a number of manufacturers from China are using it these days.

Overall the cryptocurrency mining industry appears to be developing quite rapidly with specially-designed graphics cards, motherboards and now PSUs available to interested parties via specialized channels. In fact, you can even get mining graphics cards from retail outlets in Taiwan, something that is not supposed to happen. That said, both the Afox AFMPS-3300A1 and the Qdion QD3050 are available from certain channels specializing on equipment for miners, but will hardly be sold by regular retailers.

As for pricing, Afox says that its 3.3 kW PSU costs around $250 per unit when bought in sufficient quantities, so one can surmise that components used for the part are not really high-end. Again, this hardly matters to miners that run large farms and are used to quickly swapping out hardware.

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  • gregounech - Monday, June 11, 2018 - link

    Oh yes these famous Cyrptocurrency Miners.
  • DanNeely - Monday, June 11, 2018 - link

    Looks like they didn't even bother to update all the labels. One of them lists its input as 180-240V 10A. At the max voltage that's 2400Ws minus whatever the efficiency penalty is.

    What really scares me is that the input connector is a C14, which is also only rated for 10A. For the power draw it's rated for at max load they need a C20 which can deliver 16A.

    Without fixing that, this thing isn't just not 80+ certified, but it can't pass any national safety standards (eg UL listed in the US.), because it could be connected to the wall using a power cable not rated for the amount of power it can draw and potentially into an outlet not rated for it either.

    I really hope this is just an early engineering sample they're showing off and not a product in a shipping ready configuration.
  • Lord of the Bored - Tuesday, June 12, 2018 - link

    Honestly, if that is the scariest thing in a miner build, then miner builds have gotten a lot tamer than the last time I looked.
  • DanNeely - Tuesday, June 12, 2018 - link

    There's a major difference between idiots doing stupidly unsafe things off label, and shipping a product that's designed in a way that invites you to burn your house down.
  • zodiacfml - Monday, June 11, 2018 - link

    Bundled PSUs drops the efficiency of the system. If each PSU is 90% at half load then the combined efficiency is only 81%. Considering its cost and size, you're better off buying two PSUs which can be cheaper and not deal with a higher quality/gauge power cord.

    I've seen a similar setup using refurbished 1200W HP server PSUs which costs less and a lot smaller (though the fans can be high pitched). Each PSU is rated at 95%.
  • Meaker10 - Tuesday, June 12, 2018 - link

    No, you don't add percentages that way, if you had two 90% Efficient supplies drawing 100w and delivering 90w the combined would be drawing 200w and delivering 180w. 180w is 90% of 200w.
  • londedoganet - Tuesday, June 12, 2018 - link

    Clearly, the first PSU is there to supply power to the second PSU. /s
  • Dr. Swag - Tuesday, June 12, 2018 - link

    Yes, because of course the psus are connected in series even though that wouldn't even work.
  • cpy - Tuesday, June 12, 2018 - link

    So sticker says 240V + 10A, how do they get 3300W again?
  • PeachNCream - Tuesday, June 12, 2018 - link

    You get 3300W the same way you get money from cryptocurrency, magically!

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