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Item#: N82E16835103197

Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

  • Zero maintenance design
  • CM designed pump
  • Thick FEP Tubing
  • Dual JetFlo 140 fans
  • Unique LED glow for logo

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Cooler Master RL-N14X-20PK-R2

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the Cooler Master RL-N14X-20PK-R2

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  • Brian C.
  • 1/7/2016 2:43:01 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent water cooling block

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: Installed it myself. Was a little difficult on an LGA1366 but after some tough love and only reapplying the thermal paste (arctic silver or else!) once, it locked into place well.

Didn't need instruction manual.

Make sure you have the fans in a push/pull to get cold temps (they should face the same way directing air out the back of the case).

Cools my older generation intel i7 970 stock 3.0GHz, overclocked to 3.6GHz down to 13ºC idle, ~44ºC full load. I have taken good care of my older cpu, have had it since it debuted at $1,000 and plan to keep using it until I run it into the ground.

I have this paired with a CoolerMaster HAF-X computer case on a gigabyte ga-x58a-ud5 ATX motherboard. Plenty of fans, internal cooling, etc.

Advice: I would dust out the grill at least once a month to keep temps about 10º lower than they would get otherwise. Also keep the carpet or flooring near your computer clean to minimize any dust accumulation.

Edit (7 Jan 2016): Ordering a second one for my pc build/upgrade of mobo z170, intel i7 6700k, 32gb g.skill ram....

Just to answer any questions....this is an excellent cooler and yes, it indeed *does* work with Z170 LGA1151 intel Skylake sockets....it just doesn't say so on the box because LGA1151 just came out. So, if you're looking for great cooling and you're going LGA1151, just get this. You'll be glad you did.

Cons: None whatsoever.

Other Thoughts: Be mindful of the piping when dismounting the two fans and the grill when you are cleaning the grill. The pipes will form solidly into whatever shape you installed them at, so keep them that way.

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  • Tipton W.
  • 12/6/2015 1:08:52 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIt WORKS

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: This is a good cooler

Cons: nothing so far, I haven't touched it and it runs great
40-45 Celsius under load

Other Thoughts: This is such a solid purchase - the money to return is THERE

I work in sales, this is a great product for an AM3+ Vishera 6300 atleast. I would recommend

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  • Jeffrey C.
  • 12/3/2015 3:02:24 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsThree failed in 2 years

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: The design was great for my specific desktop build.

Cons: I have owned two of these units since I received my custom-built $3500 desktop computer. Both have failed after I bumped the cooling cables when installing some RAM or a PCI card.
The first one was DOA when they installer's company was building my system, so that makes 3 strikes and Cooler Maser is out of my computers forever.
I guess Cooler Master is like many pc component companies these days - the boxes look great and say all the right things, but the bottom line is that it's simply cheap plastic parts made in China.

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  • Scott M.
  • 11/16/2015 7:39:59 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsUpdate after over a months use

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: Provides 240mm cooling in a 120 form factor (has 120 mounts)

Not too expensive

Keeps the core temps of an overclocked FX8350 @5.0ghz in the low 60C range in Intel Burn Test. In P95/OCCT it barely breaks 50C.

Cons: The aluminum threads where the screws attach to the radiator pulled out in 3 locations after a month when I went to install new fans.

Other Thoughts: Apparently the screw holes stripping is a common problem not just with this cooler but with many of them. And if you don't get the screws tight enough they fans can vibrate the screws loose so you are kinda stuck in that regard.

Also the JetFlo fans, while they move a TON of air, are noisy and the rifle bearings started making noise in one of them after a month.

Instead of a RMA where the same issues would happen again I am replacing the JetFlos with FD bearing Hyperboreas and small zip ties work great at attaching the fans to the rad screw holes directly so that will permanently solve that issue.

This is still a great cooler and I would not hesitate to buy this or the 240 or 280mm unit again but there are definitely some things to be aware of. If any of this stuff bothers you, then look into the Evo212 if you will not be overclocking or if you are then go big air with a Cryorig R1 or a big Noctua.

1 out of 1 people found this review helpful. Did you? Yes No

5 out of 5 eggsexcellent

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: excellent cpu cooler cools my core i5 2500k @ 4.6 ghz, much better than the fan based coolers

Cons: none

1 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 10/14/2015 7:33:22 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat cooling

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: Great cooling easy to install but

Cons: When first used it never made any noise but as soon as i oc my cpu every time i would start up my pc the cooler would start really loud and the lower down, when temps were high it was loud very audible

0 out of 1 people found this review helpful. Did you? Yes No

  • Scott M.
  • 10/4/2015 8:50:40 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsReally really good cooler

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: -240mm performance in a 120 or 140mm slot
-Ridiculously good fans
-Good thick coolant tubes with good length
-$69 after rebate
-Way more versatility in mounting than a 240mm unit

Cons: Not free?

Newbies might not catch the fact that you can't daisy chain the fans on a single motherboard header due to power requirements even tho the instructions show this.

Fan cables could be a touch longer as well. Had to use the included splitter as an extension cord for the front mounted fan to reach the CPU headers.

Other Thoughts: This is a really really really nice cooler. Has 120mm and 140mm mounts on the rad for those who want to run 120mm for whatever reason and with said 120mm fans this cooler will mount in a 120mm fan space as long as there is physically room for the radiator itself. This means you would have to buy new fans tho.

Cooling is similar to a 240mm unit and the form factor of this cooler allows it to be mounted in a lot more cases. The 140mm Jetflo fans it comes with have amazing static pressure and when they kick up to the upper end of their operating range they move a LOT of air but they do get loud.

That is another thing, CM does include a PWM splitter and the instructions even show the fans being daisy chained but most motherboards have a 1A limit per header and these fans pull .8A each at full load. I can't help but wonder if this is why people leaving negative reviews for them not moving enough air had this issue. Put one fan into the CPU header and the other into the secondary CPU header and then the pump on a chassis fan and these things will really crank up when the CPU is at 100%.

All in all I can't recommend this cooler enough for those who don't have the provisions for a 240 setup or it isn't going to be optimal like in my Challenger S case. For that case a 240 rad would be sitting right over the top of the mobo and blocking the RAM and over part of the VRM too, not good. Front mounting this 140mm unit gives me the same cooling ability and keeps the radiator far away from everything else not to mention it pulls cool air directly in from the front of the case and not hot case air across the rad like top or rear mounted units.

Would definitely buy this again if I needed another water cooler.

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  • Scott M.
  • 10/2/2015 5:34:42 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSpectacular cooler

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: -Same cooling capability as a 240mm but way more compact for smaller cases
-Jetflo fans flow a TON of air but are quiet at low speed via PWM.
-Has 120mm fan mounts on the radiator as well as 140
-Nicely sleeved wires, cool little LED on the pump
-Pump is very quiet
-Installation is a breeze and instructions are top notch
-I had zero issues with coolant tube length on a front mount setup

Cons: Nowhere in the instructions is it made explicit that each fan needs its own dedicated fan header due to the fans having a very high draw. Not enough to lose an egg since the fan and pump ratings are right one the box but it might confuse novices. I would only use the splitter via a fan controller with the amperage to move them both at full speed.

Other Thoughts: I have a Challenger S case so while putting a 240mm up top was feasible it meant that the radiator would be right in front of the RAM right near the CPU and motherboard. Did not want all that heat in that spot so looked for an option that would give me the same cooling ability and maybe be able to go in the front to pull cool air directly over the rad from the outside. I found this cooler and am SO glad I did.

This cooler fit in the front of my Challenger S case like it was designed for it with a ton of room to spare, no possible interfering with even the longest GPUs. The 140mm radiator also has mounting holes for 120mm fans in addition to the 140s it comes with. This means that this big 140mm radiator can mount even in cases with no 140mm fans as long as the rad itself fits. Just make sure you electrical tape around the gap between the fans and the rad which is good practice with any water cooler honestly.

Finally, the Jetflo fans... these suckers have BIG motors and ridiculously good static pressure. I have to wonder if the other reviewers who say they don't move much air have them each on their own fan header because they draw .8A EACH and the standard for most motherboard headers is 1A. This means daisy chaining them together is not going to get them enough juice to go full speed. I have one fan on the primary CPU header and one on the CPU_OPT header of my motherboard and the pump into a chassis fan header and everything goes to full blast under a torture test... and that is when things get LOUD.

All in all, if you want 240mm cooling but don't have the provisions or space for it, definitely recommend this 140mm push/pull setup. It cools like a 240mm and is going to be compatible with a lot more cases, I could even mount this in my 15 year old Antec server case if I wanted TBTH... I could not be happier with this cooler and at the price after rebate it is a STEAL. If I could give it 6 eggs I would.

1 out of 2 people found this review helpful. Did you? Yes No

  • Cole O.
  • 9/22/2015 1:56:01 PM
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsUpdated Review: Great Cooler, Horrible RMA process

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: Fantastic cooler. Even overclocked and under full load, my AMD FX8350 never rose above 40°C. Had it for just over a year before it died on me. 5 year warranty is also kind of nice. Fans can get a bit loud when they're really working, but the rubber vibration / noise dampeners on the fans make a HUGE difference in sound. Overall, the product itself is FANTASTIC.

Cons: As stated above, had the cooler for over a year before it died on me, but the RMA process was absolutely atrocious. I had to pay for shipping to send it back to them, and it sat at their warehouse for 3 weeks before they bothered to do anything about it. I'm quite certain the only reason that anything got done with it even then was because I contacted the "online chat" on 4 separate occasions to request updates on the status of the RMA.

The people I dealt with in the "online chat" weren't very helpful either. They really seemed like they could care less about my RMA and it was one of those "We got your product, go away until we feel like getting around to shipping you a replacement" sort of situations. About the only person on the online chat who was helpful was "Patrick" who, to try to make it up to me, agreed to ship the new cooler back to me priority mail, but it really has soured my experience with Cooler Master (Which is a real shame since I also bought the CM Stryker Case and I love it).

UPDATE: They did not ship back with "3 day delivery" as promised, so you can add "lying to customers" as an additional "Con".

If this new cooler dies again before the warranty is up, I'll likely buy a new CPU cooler from a different brand while this one is being RMA'd and just sell the replacement that they ship out (when it eventually gets here).

Other Thoughts: It's really a shame that their RMA process is so terrible, because the actual product itself is phenomenal. For these reasons, I'm giving this product a 4/5 eggs.

If the RMA process had been even slightly better at keeping the customer (AKA Me) informed with what's going on or even felt like they cared *at all* about their customers, I would've been able to overlook it and give the product a 5 egg rating, but as is, I will probably choose a different brand for future CPU cooling, etc.

2 out of 3 people found this review helpful. Did you? Yes No

  • Cole O.
  • 9/17/2015 10:57:50 AM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGreat Cooler, Horrible RMA process

This review is from: Cooler Master Nepton 140XL – Push-Pull CPU Liquid Water Cooling System with 140mm Radiator and 2 JetFlo Fans

Pros: Fantastic cooler. Even overclocked and under full load, my AMD FX8350 never rose above 40°C. Had it for just over a year before it died on me. 5 year warranty is also kind of nice. Fans can get a bit loud when they're really working, but the rubber vibration / noise dampeners on the fans make a HUGE difference in sound. Overall, the product itself is FANTASTIC.

Cons: As stated above, had the cooler for over a year before it died on me, but the RMA process was absolutely atrocious. I had to pay for shipping to send it back to them, and it sat at their warehouse for 3 weeks before they bothered to do anything about it. I'm quite certain the only reason that anything got done with it even then was because I contacted the "online chat" on 4 separate occasions to request updates on the status of the RMA.

The people I dealt with in the "online chat" weren't very helpful either. They really seemed like they could care less about my RMA and it was one of those "We got your product, go away until we feel like getting around to shipping you a replacement" sort of situations. About the only person on the online chat who was helpful was "Patrick" who, to try to make it up to me, agreed to ship the new cooler back to me priority mail, but it really has soured my experience with Cooler Master (Which is a real shame since I also bought the CM Stryker Case and I love it).

If this new cooler dies again before the warranty is up, I'll likely buy a new CPU cooler from a different brand while this one is being RMA'd and just sell the replacement that they ship out (when it eventually gets here).

Other Thoughts: It's really a shame that their RMA process is so terrible, because the actual product itself is phenomenal. For these reasons, I'm giving this product a 4/5 eggs.

If the RMA process had been even slightly better at keeping the customer (AKA Me) informed with what's going on or even felt like they cared *at all* about their customers, I would've been able to overlook it and give the product a 5 egg rating, but as is, I will probably choose a different brand for future CPU cooling, etc.

1 out of 2 people found this review helpful. Did you? Yes No

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Item#: N82E16835103197
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