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Item#: N82E16811119277

Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

  • Polymer, mesh front bezel ATX Mid Tower
  • USB 3.0 x 2 (int.), USB 2.0 x 2, Mic x 1, Audio x 1 (supports AC97 / HD Audio) Front Ports
  • 2 External 5.25" Drive Bays
  • 7 Internal 3.5" Drive Bays
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BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Cooler Master NSE-400-KKN2 (N400)

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Cooler Master NSE-400-KKN2 (N400)

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Showing 42 of 42 reviews - Clear Filters

  • thomas c.
  • 5/14/2015 5:04:52 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood case

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Eight fan mounts, 3 SSD positions, 2 USB 3 and 2 USB 2 jacks on front panel. painted inside and out. light but sturdy when buttoned up. Has reset button

Cons: Front, top and rear fan mounts recessed so they won't except Deep Cool's GF140 120mm mount fan. (no egg deduction)

Other Thoughts: Not fancy, not ugly, gets the job done with plenty of options for a decent price. Replaces a CM Centurion 590 case

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

  • Joseph C.
  • 5/10/2015 2:41:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsAttractive case

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Very good looking case, mesch front. nice paint inside and out. Good location for the USB/audio and on switch.

Cons: No or little wire management, I feel that this case is over priced for what you get, I've had lower priced cases with better wiring management that looked goo too

Other Thoughts: I liked this case because I like the mesch front and USB / audio ports on the front but the price and wiring management makes this a poor value for the $50-60ish amount. There are nicer cases out there for that amount

Did you find this review helpful? Yes No

  • Mark C.
  • 5/1/2015 6:56:37 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsSolid

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: This case has a cool look especially when I added blue led fans to every vent. Not the biggest fan of the 240mm radiator location but it works out. The construction is pretty solid and have had no real problems with the case itself.

Cons: The only real problem I found with this case is the short space between my gpu and the hard disk rack. My HIS 7870 Ghz GPU's are so long that I had to put my hard disks at the bottom of the rack. It wasn't a very big deal for me but it does limit the number of disks you can install.

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  • Ramon S.
  • 4/30/2015 3:50:16 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

5 out of 5 eggsGreat.

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Pretty good space. Very simplified design all around.

Cons: Dust may or may not end up being an issue.

Other Thoughts: I was pretty bummed that my last CM case (around the same price as this at the time) couldn't fit the R9 280 that I had just bought. Forced me to go out and buy a new one. It was either this or the HAF 912.

The mobo and 280 fit perfectly. No struggle. Love the minimal exterior that doesn't yell for attention like some mid/high-end cases. The HAF is definitely the better choice between the two but my rig isn't a needy beast so I went with aesthetic preference.

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  • Jay B.
  • 4/20/2015 5:21:38 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsDisappointing

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Very airy case for air cooled systems

Cons: Will not fit the Coolmaster Glacier 240 liquid cooler. Coolmaster's website specs say "240mm cooler on the side of case." The reality of the matter is that is select 240mm coolers.

Manufacturer Response:

Good Morning Valued Customer,

Well the N400 has two spots that can accommodate 240mm radiators which are the top and the right side of the chassis. Due to the various aftermarket thickness 240mm radiators in the market we can not guarantee fitment on the right side unless it is one of our own Seidon, Nepton, Eisberg, or Glacer series liquid cooling units. However you're more then welcome to mount it on the top of the chassis with optimal clearance.

You can always contact us directly through our CM Fanzone with your fitment questions via Live Chat, Support Ticket, Phones with the link provided below.

Regards,
Felinni M.
CMUSA Support
1-888-624-5099

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  • Michael J.
  • 4/1/2015 8:08:09 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsIt's feels like a budget case

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: - It works
- It looks fairly nice
- 3.5" external bay & 2 5.25" bays
- 2 usb 3.0 and 2 usb 2.0 ports on front
- Reset button

Cons: - The radiator support isn't that nice. I had to move things around
- The 2.5" bay is a little weird. It made installing a drive more difficult
- Only included 5 clips. I could only install 2 hard drives because of this limitation in addition to a 3 other external peripherals.
- All the screws came in one bag, not sorted
- Not a lot of options for cable management
- It feels like a $40 case, not a $60 case

Other Thoughts: This is my first build, and I'm not 100% sure what I'm doing. This might not be 100% accurate.

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  • Paul M.
  • 3/13/2015 1:03:27 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsTo Small

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: ok case

Cons: to small full sise motherboard did not fit EVGA MB

Manufacturer Response:

Good Morning Valued Customer,

Our N400 can accommodate ATX, MicroATX, and Mini-ITX motherboards as you can see through our. Which EVGA motherboard are you referring to? I look forward to a response through our CM Fanzone via Support Ticket, Phone, or Live chat.

Regards,
Felinni M.
CMUSA Support
1-888-624-5099

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

  • Badey W.
  • 1/26/2015 7:14:19 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsMy favorite case

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Simple good looks and lots of ventilation.

Cons: Some Asus motherboards have SATA connectors at the edge that point out to the side, not up. This case has a recessed area for the motherboard that makes it impossible to use some of the connectors. That might be serious but those I have seen still have six useable SATA connectors.

4 out of 4 people found this review helpful. Did you? Yes No

  • Mahmood M.
  • 1/19/2015 10:00:15 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat buy.. Economic and Efficient

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: It's been a while since I build a desktop from scratch. I was able to put in eight drives very easily.
- The cuts and groves on the bottom make it very easy to manage the cables and avoid clutter on the top.
- An additional 2.5" caddy supports 2 more drive in the back.
- Lot of room for Fans and cooler (see cons)
- Option to do screwless installation (see cons below)

Cons: - It would have been nice if there were more screwless clips, I think there were only 3-4 total
- only two fans came pre-installed, would have been nice to have more with the case

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

  • Charles B.
  • 1/6/2015 9:07:03 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsIf only there were more eggs

This review is from: Cooler Master N400 NSE-400-KKN2 N-Series- Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: By far the most professional looking case I've ever used, what caught my eye was the brushed metal looking plastic going down the front right side of the bezel which makes it really sleek and professional looking, I don't like all the flashy lights, bells and whistles, this didn't really have anything flashy, beside the hdd l.e.d. which literally flashes. The front bezel, when you first take it off, be a bit careful, it is on there tight, if you go too fast, you may break it, once you get used to it though, you can take it off fairly easily to clean the dust out, I do that on a weekly basis, I don't even use canned air, just blow on the inner side real hard and all that dust should fly out, or if it's windy outside, hold it up to the wind.

Overall a VERY roomy case, cable management is a little sub-par, I got all the cables inside an hdd space, so really consider the psu you're going to need, a modular, flat cable psu should do the trick. Another thing to note is that this case is well ventilated, as stated it comes with two fans, which push a good amount of air, the air/noise ratio is quite nice, my graphics card is louder, and keeps the overall internal temps below 80*F where outside ambient temps are around 68-72*F. The case holds eight 120mm fans in total, so lots of room for improvement in the ventilation category.

So many hdd bays i don't know what to do with, I had 4 in there at one point, 2 sata, 2 ide, i upgrade the motherboard which only has sata, so i pulled the ide ones out after moving everything to sata and that was that.

Now this case does take some time to work with, so patience is key when working with this case, the main point being cable management, it is a tad bit of a challenge cleaning it up, but nothing a few zip ties can't accomplish, I didn't use any, but that's beside the point, just plan everything well and all should be good.

Cons: These are by no means anything that should deter you from buying this case, very little things i noticed. My particular case, i noticed while cleaning it one day, the bottom rivets are leaning to one side, as if the case had warped somehow, I initially thought it was the motherboard at fault because it was a bit of a pain putting in the mobo, but i disproved that finding that the rivets were leaning toward the mobo, not away. The case was very well package, so i don't believe this happened from shipping, and the problem only seems to be on the bottom, maybe miss-aligned during assembly, but it's not something i'd return it for, that would be absurd.

The case isn't week, but it isn't strong either, it's something you could put a few hard drives on, or a monitor, but it's not something you'd want to be using as a step stool any time soon, my cat likes to lay on it though, but if you're looking for something to go into a batting cage or a drop test machine, find a different case, overall it should keep whatever you put in it nice and safe.

The side panels refuse to stay in without thumb screws, I usually left the thumb screws out because i was in my case quite frequently switching out hard drives or add-in cards or doing some kind of shenanigans, but if the thumb screws are left out, and the case is given a neat little tap on the bezel or something, that panel's just gonna fall out.

Again, these are NOT things that should deter you from this case.

Other Thoughts: I was putting a hard drive in and accidentally used a toothed screw, kind of scratched off the paint on that hdd mounting point, i was devastated, but i got over it pretty fast.

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

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Item#: N82E16811119277
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