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Massive $40 quad-fan JF15K Diamond CPU cooler wields dual-heatsinks for up to 280W TDP cooling capacity — Jiushark's latest spans the entire width of a standard motherboard

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Dual-tower, quad-fan performance on a budget.

Jiushark JF15K Diamond CPU cooler
(Image credit: Jiushark)

Chinese PC cooling solutions manufacturer Jiushark has come up with one of the beefiest CPU air coolers that we have seen in a long time. The latest JF15K Diamond incorporates a wide dual-tower heatsink design that can accommodate four cooling fans, six heat-pipes, and a cooling capability of up to 280W.

In case you haven’t heard of the brand, we don’t blame you. Jiushark is predominantly active in Asian countries and doesn’t have a strong presence in the U.S. However, you may remember that the company launched the JF13K Diamond air cooler, which we tested a couple of years ago, featuring a one of a kind top-down airflow design with a 240mm heatsink and dual 120mm slims fans at just $40. This was soon followed by the JF13K Diamond Mini, a smaller version offering a similar design but with smaller 100mm fans with standard thickness.

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The Jiushark JF15K Diamond CPU air cooler
(Image credit: Jiushark)

The new JF15K Diamond turns the dial up a notch with a familiar tower cooler design but with a twist. The heatsinks are so wide that the cooler nearly spans the entire width of a standard motherboard. Think of it as two dual-tower air coolers fused into one massive unit. Notably, the cooler has a height of 153 mm, which means it should fit in most mid-tower and large sized cases without any issues. Additionally, the cooler offers up to 53mm of clearance for memory modules.

As mentioned, the cooler comes with four 100mm PWM fans that are said to operate at speeds ranging from 1,000 to 2,700 RPM ± 10% and 19.49 to 55.46CFM. The fans are also fairly quiet, as the company notes noise values of 19.3 to 30.4dBA. The cooler supports modern Intel and AMD sockets, and is being offered in white and black color variants. Additionally, the JF15K Diamond comes with two ARGB light bars integrated at the top, sitting right above the heatsinks. A standard variant in black will also be available for those who don’t fancy ARGB lighting.

The Jiushark JF15K Diamond is currently available via various ecommerce platforms with the black ARGB and white ARGB versions having an MSRP of 280 Yuan ($39), with certain discounts bringing the price down to 260 Yuan ($36.25).

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Kunal Khullar
Kunal Khullar
News Contributor

Kunal Khullar is a contributing writer at Tom’s Hardware.  He is a long time technology journalist and reviewer specializing in PC components and peripherals, and welcomes any and every question around building a PC.

6 Comments Comment from the forums
  • Notton
    100mm fan surface area: 7854mm²
    120mm: 11310mm²
    140mm: 15394mm²
    (not including dead spot behind the hub)

    So it's cooling potential should be similar to a 140mm dual tower.
    Reply
  • obvious oscar
    Also to note they're slim fans where as dual 140s aren't slim ones to my knowledge.
    Reply
  • Amdlova
    Cool design. But a nightmare to handle and repair the machine
    Reply
  • Dntknwitall
    Thermalright makes a 120mm dual tower cooler that is rated for 280 watts of cooling potential and they are usually $30-$40 US. I would like to see this benchmarked against one of them to see what the difference would be. My thought is this cooler would match or be less effective due to the amount of space the fans are not covering.
    Reply
  • FrozenGerbil
    YAWN... MEH... its fin stack volume is actually SMALLER than Thermalright Peerless Assassin 140 and Noctua NH-D15 G1/G2, which are both 140mm twin towers. I would not be surprised if Thermalright's and Noctua's 140mm dual-tower coolers beat Jiushark's design for cooling. And Noctua always seems to beat everyone on noise-normalized cooling, although Noctua is more than twice as expensive as Thermalright and Jiushark. And use of four 100mm fans SEVERELY limits your options if you want/need to replace the fans. There are only a tiny handful of generic made-in-China 100mm fans on the market. If Juishark really wants to "go big or go home", they should have just designed it with 4 120mm fans and 8 heat pipes, instead of 4 100mm fans and 6 heat pipes.
    Reply
  • naryfa
    It almost seems that we're at a level these days where directed tunneling, like Optimum does it, is becoming necessary to avoid re-circulation and GPU heat bleed.
    Reply