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Cooler Master Nepton 240M AIO CPU Cooler Review (Page 1)

Cooler Master Nepton 240M AIO CPU Cooler Review

Today Chad takes us on a tour of Cooler Master's new Nepton 240M all-in-one CPU water cooler. Is this the one for you? Read on and take a look.

By Chad Sebring from Feb 5, 2015 @ 21:10 CST
TweakTown Rating: 96%Manufacturer: Cooler Master

Introduction, Specifications, and Pricing


Neither Cooler Master, nor a sealed AIO should really need any introduction at this point in the cooling game, as both have been around for quite a while now. While Cooler Master typically sticks to the standard sealed AIO units, at one point they did strike a deal with Swiftech and carried one of Swiftech's AIOs. However, Cooler Master has always stayed the course and kept developing the standard issue AIOs as well. It seems like everyone and their pet monkey is offering an AIO these days, and only a select few companies stand out, but what is it that makes those standouts what they are? It really comes down to features, hardware, and accessories that the base model AIO providers don't seem to offer.

With most AIOs, you get some very simple hardware to mount the head unit, and over time, we have seen that some work much better than others. In the Nepton series, the provided hardware is top-notch, solid, and very capable of affording good pressure on the CPU. When it comes to the tubing, we have seen plain tubes, corrugated coverings, custom tubing, and even anti-kink coils, so there is a wide variety of options to look for there. However, when it comes to the radiators, most companies send along a simple set of screws, and the installation instructions require you to mount the fans directly to the radiator. Mounting the fans in this manner will cause vibrations to transfer into the radiator to be amplified, and also directly into the chassis. In our opinion, it is the little things that make all the difference in the world, and not only to performance, but to the user experience as well.

At this point, we have reviewed only one other version in the Nepton series from Cooler Master, the Nepton 280L. What we found in the Nepton 280L was a larger radiator using a dual 140mm fan configuration. The Nepton 280L performed very admirably, was easy to install, and looked rather good with the white LED logo lit up on the head unit. This leaves us with high hopes for the latest of the Nepton coolers to hit our lab, the Nepton 240M. While we do not expect the Nepton 240M to overtake its larger brother, with all the testing we have done, we feel we have a good handle on where it should land in our charts. From what we have already seen so far with this cooler, we feel Cooler Master is not only capable of keeping up with all of its cousins in the market, but also offers everything you need and then some.


Following the chart supplied by Cooler Master, we start off with the RL-N24M-24PK-R1 model number given to the Nepton 240M. The model number is followed by a socket compatibility list that covers all Intel processors back to, and including LGA775; the cooler is also compatible with any AMD socket since AM2+. Next, we dive right into the radiator specifications, where we see it is 274mm long, 119mm in width, and is the standard 27mm thick. We also see that this unit sports an aluminum radiator like most other AIOs.

When it comes to the head unit on this system, we see that it is 75mm from the end of the fittings to the other side of the block, 69.8mm in the other direction, and it stands 49.1mm tall. It uses a solid copper base plate (as they all do), and when drawing 4.8W via a three-pin connection (running at full speed), it should be no louder than 15 dB(A).

Along with the radiator and head unit, we need some fans to cool it all off; Cooler Master has supplied a pair of A12025-24RB-4BP-F1 120mm fans for that task. These fans are black; the frame is black, the blades and hub are black, and even the stickers are black at the right angle. These fans can spin at speeds ranging from 800 to 2400 RPM with the potential to deliver 76 CFM each through the radiator. The fans sport a low 27 dB(A) rating for noise, and we do like the 4.8 mmH2O listed for their static pressure. These fans are also supported with a loop dynamic bearing, and should run in your system for 160,000 hours. That is like 18 years of run time. We are going to assume that an extra "0" was added to this number by mistake.

It seems that the Cooler Master Nepton 240M is widely available, as it is listed in many places we tend to shop around in, appearing both in the big name locations and some of the lesser known e-tailers. We also see a wide range of pricing associated with this cooler. While Amazon is sticking nearer to the MSRP with their $129.99 offering with free shipping, we found much better deals. If you look for this cooler over at Newegg, you will find that not only is the base price listed at $119.99, but they are currently offering it for only $99.99. Taking it even one step further, they are also currently offering a mail-in rebate deal that takes another $10 off that pricing. While the $119 to $129 pricing is expected for such a cooler, as always, it is very wise to shop around to get the best deal possible.

PRICING: You can find the Cooler Master Nepton 240M for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link to see the very latest pricing for the best deal.

United States: The Cooler Master Nepton 240M retails for $115.06 at Amazon.

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