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Scythe Kaze Master Ace 5.25" 4 Channel Fan Controller / Temp Display (KM02-BK)

4.0 out of 5 stars 20 customer reviews

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  • Precious aluminum design: High-quality materials were used when producing the Kaze Master Ace.
  • With the Kaze Master Ace, four fans can be controlled independently, and four temperatures (in either ° C or °F) can be monitored
  • Wide range of fan controller: The fan voltage can be independently controlled from 3.7 - 12 V, in addition fan can be switched off
  • The front consists of brushed aluminum and accentuates the blue illuminated VFD display in an optimal way.
  • An integrated acoustic alarm function (which can be deactivated by a jumper) warns the user from overheating and failure of a fan.

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Product Information

Product Dimensions 2.5 x 5.8 x 1.7 inches
Item Weight 5.8 ounces
Shipping Weight 12 ounces
Manufacturer Scythe
ASIN B001F7HKNC
Item model number KM02-BK
Customer Reviews
4.0 out of 5 stars 20 customer reviews

4.0 out of 5 stars
Best Sellers Rank #2,491 in Computers & Accessories > Computer Components > Fans & Cooling > Case Fans
Date first available at Amazon.com May 13, 2009

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Customer Reviews

Top Customer Reviews

By J. Birenbaum on April 26, 2010
I purchased this item a few months ago and had some bad luck initially. After less than a day one channel started acting funny and then died shortly thereafter. Upon inspection I found one of the power transistors had blown due to a gate-drain short. Given the rating on the power transistors used this must just have been a dud because there should be plenty of headroom for all standard fans. Other than the one dead channel, everything has worked as well or better than expected. Digital readouts are great for fan speed and temperature, and the two extra temperature probes included with the controller are a real plus (the probes are just calibrated resistors and if you're too harsh with them they can break). Overall I'm very satisfied with this product even though one channel has died.

Extra note: The fried transistor is fairly easily accessible in such a way that replacing it is feasible. I plan on doing this during the summer or fall when I have some free time on my hands. I'll update when I give it a try.

** Update **

I purchased a new power transistor and replaced the blown one. The channel has come back to life but behaves oddly (won't start until I'm at about 70% and the speeds it reads aren't reliable). Clearly when the transistor blew it damaged something else. I think the real solution would be to purchase some heatsinks and attach them to the power transistors. This will ensure they never get hot enough to cause problems.
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I installed this fan controller last week and here are my thoughts.

There are 4 fan controller ports with the 3 pin connectors. If you want to connect a fan to this unit that uses the 4 pin molex connected (the same kind hard drives and cd drives use) then you will need an adapter.

The RPM indicator on the screen works well, it shows you the fan speed in intervals of 10rpm.

The unit also has 4 ports for temperature sensors (it comes with 6 sensors which is nice)

BUT, I find that these sensors aren't very helpful. Since you cannot install the sensors between the processsor/gpu chip and the heat sink, you can't get an accurate temperature reading.
If you try to stick anything other than thermal paste between a processor and the heat sink you will likely destroy your components. So don't.

The best you can do is tape the sensor on to the heat sink as close to the chip as possible, but even then, it's not accurate.

If you want to use the sensors for ambient temperature readings, that's probably the most realistic use for them.

Overall the fan controller looks very slick, it seems well made, it comes with extra temp sensors (they are easy to break).

I definitely recommend this product.
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By Antal Mak on March 30, 2010
Verified Purchase
i haven't used many fan controllers but this one is definately exactly what i was looking for in a fan controller! controls up to 4 fans and has a good amount of amps per channel, clearly displays the rpms and temps, looks good, doesnt feel cheap and has some weight to it (makes it feel sturdy)
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I haven't installed a great many fan controllers, only 6 to date but I don't like a lot of bling and gravitate towards simplicity, which the Kaze controller readily delivers. The device arrived in a solidly foamed packaging to protect the component inside, always a plus. The unit allows for control of 4 separate fans and has leads for 4 temperature sensors and affords a good performance for cost ratio.

Pros: Cost and unobtrusive LED read outs, they're clearly visible without casting a obnoxious level of ambient lighting, the readout is fine and clear. The dials are smooth and you can use subtle pressure to fine tune the speeds you wish to spin your fans at. The temp readings are fairly accurate, I tested a number of different locations in my case using additional sensors from a hand held device and they were typically within 2 C. The unit comes with 6 temp probes, a definite bonus because the probes are delicate and break easily in a moment of carelessness. I test mounted it in 3 very different cases, in each instance, the unit fit into a standard 5 1/4" bay with no issue. Finally the unit is fairly straightforward and easy to install, even without a manual, you could figure this things operation and configuration out through average deductive reasoning.

Cons: Wires. Lots of them. Tiny placement pins for fan wires and temp probes. I imagine its a necessary evil, since one is going to be powering 4 different fans with this unit, and each fan has its own control, but it makes for a lot of wire management. Fitting the fan wires to the control unit requires a delicate touch, the plastic housings are small and all along the right hand edge of the unit's inner wall.
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Works great and looks awesome in my XION Predator case, it has a nice touch of class to it! Some other controllers look so fake or gaudy. I'm runny 3-120mm led fans and 1-200mm led fan with no problems. Comes with everything you need and a few extras.
Would recommend it to anyone in need of a fan controller.
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